MCCB Connections, mounting and chassis systems

Transcription

1 MCCB Connections, mounting and chassis systems Section 6 Page MCCB Chassis NHP Chassis busbar systems overview 6-2 Quick reference table 6-2 MCCBs to suit each chassis type 6-3 XA 630 / 800 A chassis for 25 AF MCCBs 6-4 XB 800 A chassis for 250 AF MCCBs 6-4 PXB chassis for 250 AF Electronic (and thermal magnetic MCCBs) 6-5 XA and XB 630 A and 800 A 4 pole chassis for 25 / 250 AF MCCBs 6-6 XBSSR and XBSSL 800 A single sided chassis for 250 AF MCCBs 6-7 XC 000 A chassis for 60/250/400 AF MCCBs 6-8 Installation of TemWay chassis terminal covers & MCCB mounting orientation 6-9 to 6-0 TemWay chassis dimensions 6 - to 6-2 TemWay specials order form 6-22 HC 250 / 600 / 2200 A chassis for MCCBs 2 A to 250 A 6-23 to 6-26 HC chassis order form 6-27 HC chassis dimensions 6-28 to 6-3 HC chassis load break switch combination 6-32 NHP Chassis testing 6-33 Connection and mounting Connection and mounting options / DIN rail adaptor 6-34 to 6-35 Extension busbars 6-36 Tunnel clamp terminals 6-36 Crimp lug connectors 6-37 Rear connect terminals 6-38 Front connect terminals 6-39 Plug-in MCCBs 6-40 Terminal screw and bolt data, and standard torques 6-42 to 6-43 TemBreak MCCB clearance requirements at 440 V AC 6-45 to 6-47 TemBreak MCCB clearance requirements at 000 V AC 6-48 to 6-52 Temperature derating 6-53 to 6-54 Watt s loss 6-55 Mounting angles

2 Moulded Case Circuit Breaker Chassis systems XB 800 2U chassis MCCB chassis Overview MCCBs are often required to be mounted singly, in the case of a motor control centre, or in groups, as part of a larger power distribution system. To help assist with grouped MCCB power distribution requirements, NHP manufacture standardised busbar systems, simply called chassis. NHP stock a range of basic chassis which can be purchased off the shelf, while more complex, or higher current chassis, are produced on a custom basis to a suit a customer specification. Common features A new mounting channel common to all chassis to make installation quicker & easier All chassis suitable for use up to 690 V AC TemWay XA, XB, XC chassis 36 and 40 ka ratings on standard TemWay XA and XB chassis 50 and 65 ka ratings on TemWay XC chassis XC 000 A chassis are stocked with 400 A and 250 A tee off combinations A range of TemWay 4 pole XA and XB chassis, suitable for earth leakage MCCBs Heavy current HC chassis HC heavy current chassis for MCCBs, A HC heavy current chassis, compact single sided version, or double sided box sizes more economical sizing to suit applications. Saves cost Common configurations of HC chassis now stocked - fully assembled for quick delivery Testing Both TemWay and HC Chassis have been unconditionally type tested (no MCCBs fitted) in Australia, at the short time ratings shown in the table below. Chassis ratings Chassis type Description XA Double sided Main bar rating (A) 630, 800 A ) Fault current level lcw Rating 36 ka for second 40 ka for 0.5 second MCCB frame sizemccb Cat. No. 25 AF E/S/ZS25 2A 25 A XB Double sided 800 A ) 36 ka for second 40 ka for 0.5 second 250 AF E/S/ZS250 NJ/ GJ 2 A 250 A XBSS Single sided Left or right sided 800 A ) 36 ka for second 40 ka for 0.5 second 250 AF E/S/ZS250 NJ/ GJ 2 A 250 A PXB Double sided 800 A 36 ka for second 40 ka for 0.5 second 250 AF S250PE, or a mix of 250 AF sizes XC Double sided 000 A ) HC Double sided or Single sided left or right 250 A, 600 A, 2200 A 50 ka for second 65 ka for 0.5 second 65 ka for second 250 AF, 400 A 250 AF to 250 AF E/S/ZS up to E/S400 E/S60 up to XS250SE ) XB Chassis main bars are rated at 800 A, and XC bars are rated 000 A, while for XA chassis 800 A is an option. To comply with the new Australian New Zealand AS/NZS standard regarding separation, XA, XB and XC chassis should be only used in switchboards having operational currents less than 800A. For chassis that includes integral separation and for utilisation currents equal to, and exceeding 800 A, a HC high current chassis must be used. HC Chassis will not accept TemBreak, 25 AF, 250 AF and 400 AF MCCBs. 6-2

3 Moulded Case Circuit Breaker Chassis systems MCCB Chassis selection guide Chassis type XA Description Double sided Main bar rating (A) 630, 800 A ) XB Double sided 800 A ) XBSS Single sided Left or right sided 800 A ) XC Double sided 000 A ) HC Double sided or Single sided left or right 250 A 600 A 2200 A MCCB types to suit XA, XB, XBSS, PXB, XC and HC chassis Fault current level lcw Rating 36 ka for second 40 ka for 0.5 second 36 ka for second 40 ka for 0.5 second 36 ka for second 40 ka for 0.5 second 50 ka for second 65 ka for 0.5 second 65 ka for second XA ) XB/ XBSS ) PXB XC ) HC ) Main bar sizes: 630 A or 800 A S25NF 5-00 A E25NJ 2-25 A S25NJ 2-25 A S25GJ 2-25 A ZS25GJ 2A-25 A Main bar size: 800 A Main bar size: 800 A Main bar size: 000 A Poles Suits MCCB frame size 3 or 4 25 AF 3 or AF AF 3 3P Double sided or 3 or 4P Single sided Main bar size: 250 A, 600 A, 2200 A 250 AF 400 AF 250 AF 400/630 AF 630/800 AF 250 AF MCCB depth (mm) E/S 60/ 250 NJ-GJ 2 ) H25 and S250PE 2 ) S60NF 2-60 A S60NJ 2-60 A S60GJ A E250NJ A S250NJ A S250GJ A ZS250GJ A S60NF S60NJ S60GJ E250NJ S250NJ S250GJ ZS250GJ S250PE A S60NF 2-60 A S60NJ 2-60 A S60GJ A E250NJ A S250NJ A S250GJ A ZS250GJ A S60NF 2-60 A S60NJ 2-60 A S60GJ A E250NJ A S250NJ A S250GJ A ZS250GJ A H25NJ 2-25 A S250PE A ) 03 2 ) E400NJ A S400CJ A S400NJ A S400NE A S400GE A E400NJ A S400CJ A S400NJ A S400NE A S400GE A E630NE A S630CE A S630GE A XS630NJ XS630SE XH630SE XS800NJ XS800SE XH800SE A A A A A A XS250SE A 03 ) XB Chassis main bars are rated at 800 A, and XC bars are rated 000 A, while for XA chassis 800 A is an option. To comply with the new Australian New Zealand AS/NZS standard regarding separation, XA, XB and XC chassis should be only used in switchboards having operational currents less than 800A. For chassis that includes integral separation and for utilisation currents equal to, and exceeding 800 A, a HC high current chassis must be used. 2 ) H25NJ and S250PE 250 AF MCCBs are deeper than other 60/250 AF MCCBs. H25 and S250PE MCCB tee offs must be specified for PXB and HC Chassis. HC Chassis will not accept TemBreak, 25 AF, 250 AF and 400 AF MCCBs. 6-3

4 XA/ XB Chassis for AF MCCBs 3 pole, double sided XA630 8U chassis Features Complies with AS/NZS 3439, AS/NZS Suits TemBreak MCCBs A Top and bottom fed Busbars fully insulated Side mounting rail now standard for quicker mounting on all chassis XA and XB chassis now rated up to: 36 ka for second 40 ka for 0.5 seconds XA 630 and XA Suits E25, S25, ZS25 MCCBs No. of Poles Cutout ) Height (mm) Pan Height (mm) 630 A Cat. No. 800 A 2 ) Cat. No XA6306U XA8006U XA6302U XA8002U XA6308U XA8008U XA63024U XA80024U XA63030U XA80030U XA63036U XA80036U XA63042U XA80042U XA63048U XA80048U XA63060U XA80060U XA63072U XA80072U XB Suits E250 S60, S250NJ, S250GJ, ZS250 MCCBs (not S250PE) No. of Poles Cutout ) Height (mm) Pan Height (mm) 800 A 2 ) Cat. No XB8006U XB8002U XB8008U XB80024U XB80030U XB80036U XB80042U XB80048U XB80060U XB80072U ) The length of the escutcheon cut-out (refer to the following pages for detailed dimensions). 2 ) XB Chassis main bars are rated at 800 A, while for XA chassis it is an option. To comply to the new Australian New Zealand AS/NZS standard regarding separation, XA, XB chassis should be only used in switchboards having operational currents less than 800 A. For chassis that includes integral separation and for currents equal to, and exceeding 800 A, a HC high current chassis must be used. 6-4

5 PXB Chassis for 250AF MCCBs 3 pole, double sided Features Complies with AS/NZS 3439, AS/NZS Suitable for MCCBs 2 A A Suits either all electronic or a mix of electronic and thermal magnetic MCCBs Top and bottom fed Busbars fully insulated PXB chassis rated: 36 ka for second 40 ka for 0.5 seconds PXB8008U chassis shown PXB Suits S250PE electronic, S60, E250, S250, ZS250 thermal magnetic MCCBs No. of Poles Cutout Height ) (mm) Pan Height 2 ) (mm) 800 A Cat. No PXB8006U PXB8002U PXB8008U PXB80024U PXB80030U PXB80036U PXB80042U PXB80048U PXB80060U PXB80072U PXB chassis details Fitting S250PE Electronic MCCBs The PXB chassis has extra long tee offs to accommodate 03 mm deep S250PE electronic MCCBs, as an S250PE MCCB will not mount onto a standard XB chassis. Fitting S250PE electronic, S60, E250 and S250 thermal magnetic MCCBs The PXB chassis caters for a mix of 03 mm deep S250PE and 68mm deep thermal magnetic S60, E250, and S250 MCCBs. The chassis comes as standard with add-on metal brackets & screws, to allow shallower 68 mm deep MCCBs to be installed in any position on the chassis. The total quantity of 3 pole brackets supplied equals the number of 3 pole tee off sets. PXB Chassis showing add-on brackets for mounting thermal magnetic MCCBs ) The length of the escutcheon cut-out (refer to the following pages for detailed dimensions). 2 ) Busbars extend 50 mm beyond the pan length at the top and bottom on XA, XB, XC chassis. PXB Chassis main bars are rated at 800 A. In order for adhere to the new Australian New Zealand AS/NZS standard regarding separation, XB chassis should be only used in switchboards having operational currents less than 800 A. For chassis that includes integral separation and for utilisation currents equal to, and exceeding 800 A, a HC high current chassis must be used. 6-5

6 XA/ XB Chassis for AF MCCBs 4 pole, double sided XB800 48U 4 pole Chassis Features Complies with AS/NZS 3439, AS/NZS Suits TemBreak MCCBs A Top and bottom fed Busbars fully insulated Side mounting rail now standard for quicker mounting on all chassis XA and XB chassis now rated up to: 36 ka for second 40 ka for 0.5 seconds 630 A 4P chassis have one neutral bar, 800 A 4P types have 2 neutral bars XA 630 and XA Suits E25, S25, ZS25 MCCBs No. of Poles Cutout ) Height (mm) Pan Height (mm) 630 A Cat. No. 800 A 2 ) Cat. No XA6308U4POLE XA8008U4POLE XA6306U4POLE XA8006U4POLE XA63024U4POLE XA80024U4POLE XA63032U4POLE XA80032U4POLE XA63040U4POLE XA80040U4POLE XA63048U4POLE XA80048U4POLE XA63056U4POLE XA80056U4POLE XA63064U4POLE XA80064U4POLE XB Suits E250, S60, S250NJ, S250GJ, ZS250 MCCBs (not S250PE) No. of Poles Cutout ) Height (mm) Pan Height (mm) 800 A 2 ) Cat. No XB8008U4POLE XB8006U4POLE XB80024U4POLE XB80032U4POLE XB80040U4POLE XB80048U4POLE ) The length of the escutcheon cut-out (refer following pages for detailed dimensions). 2 ) XB Chassis main bars are rated at 800 A, while for XA chassis it is an option. To comply to the new Australian New Zealand AS/NZS standard regarding separation, XA, XB chassis should be only used in switchboards having operational currents less than 800 A. For chassis that includes integral separation and for currents equal to, and exceeding 800 A, a HC high current chassis must be used. XA and XB 4 pole chassis have a common pan width. 630 A chassis use 4 main bars while 800 A have 5 main bars (2 neutral bars) 6-6

7 XB SS Chassis for AF MCCBs 3 pole, single sided XBSSL800 9U chassis Features Single sided MCCB mounting Different chassis for left or right side MCCB mounting Complies with AS/NZS 3439, AS/NZS Suits TemBreak, 60 / 250 Amp Frame MCCBs Current ratings of MCCBs range 2 A to 250 A Top and bottom fed Busbars fully insulated Side mounting rail now standard for quicker mounting on all chassis XA and XB chassis now rated up to: 36 ka for second 40 ka for 0.5 seconds Single sided chassis Suits: E250, S60NJ, E250NJ, S250NJ, S60GJ, S250GJ MCCBs XB SSL 800 LEFT hand single sided 3 pole (MCCB loadside connections at LEFT) No. of Poles Cutout ) Height (mm) Pan Height (mm) 800 A 2 ) Cat. No XBSSL 800 3U XBSSL 800 6U XBSSL 800 9U XBSSL 800 2U XBSSL 800 5U XBSSL 800 8U XBSSL 800 2U XBSSL U XBSSL U XBSSL U XB SSR 800 RIGHT hand single sided 3 pole (MCCB loadside connections at RIGHT) No. of Poles Cutout ) Height (mm) Pan Height (mm) 800 A 2 ) Cat. No XBSSR 800 3U XBSSR 800 6U XBSSR 800 9U XBSSR 800 2U XBSSR 800 5U XBSSR 800 8U XBSSR 800 2U XBSSR U XBSSR U XBSSR U ) The length of the escutcheon cut-out (refer following pages for detailed dimensions). 2 ) XB SS Chassis main bars are rated at 800 A. To comply to the new Australian New Zealand AS/NZS standard regarding separation, XB SS chassis should be only used in switchboards having operational currents less than 800 A. For chassis that includes integral separation and for currents equal to, and exceeding 800 A, a HC high current chassis must be used. 6-7

8 XC Chassis for 60 / 250 A A MCCBs 3 pole, double sided XC000 2U chassis Features Complies with AS/NZS 3439, AS/NZS Suits TemBreak MCCB amp ratings 20 A A Top and bottom fed Busbars fully insulated Side mounting rail now standard for quicker mounting on all chassis XC chassis now rated up to: 50 ka for second 65 ka for 0.5 second Now stocked with combinations of 250 A and 400 A tee offs XC Suits S60, E250, S250NJ, S250GJ, ZS250 MCCBs No. of Poles Cutout ) Height (mm) Pan Height (mm) 000 A 2 ) Cat. No XC0006U XC0002U XC0008U XC00024U XC00030U XC00036U XC00042U XC00048U XC 000 Chassis for 250 A and 400 A MCCBs As an alternative to a larger high current chassis, where only up to 2 x 400 A and up to 6 x 68 mm deep 250 A MCCBs need to be installed, the new configurations of stocked XC chassis below, can be used. XC Suits S60, E250, S250NJ, S250GJ, ZS250, E400, S400 MCCBs Cutout ) No. of Poles Height (mm) Pan Chassis configured 000 A 3P 2 ) Height (mm) for MCCBs below 3 ) Cat. No. Refer chassis dimensions page for dimensions and panel cut out details 45 x 400 A and 4 x 250 A XC000X4R2U 625 x 400 A and 8 x 250 A XC000X4R24U 835 x 400 A and 2 x 250 A XC000X4R36U x 400 A and 4 x 250 A XC0002X4R2U x 400 A and 8 x 250 A XC0002X4R24U x 400 A and 2 x 250 A XC0002X4R36U ) The length of the escutcheon cut-out (refer following pages for detailed dimensions). 2 ) XC Chassis main bars are rated at 000 A. To comply to the new Australian New Zealand AS/NZS standard regarding separation, XC chassis should be only used in switchboards having operational currents less than 800 A. For chassis that includes integral separation and for currents equal to, and exceeding 800 A, a HC high current chassis must be used. 3 ) XC chassis can be custom built for alternate combinations of 250 A MCCBs, and up to 2 x 400 AF MCCBs. All 400 Amp tee offs are located at the top of the chassis, unless specified. The stocked XC chassis containing 400 A MCCB tee offs, mount the 400 A MCCB in a single sided configuration. Each 400 A MCCB is configured for right hand side customer load side connection. Any other configuration is available by special order. 6-8

9 Terminal cover options For TemWay XA, XB, XBSS and XC Chassis Installation considerations: MCCBs on the chassis are to be reverse connected, that is, connect the bottom of breaker to the chassis tee offs. Terminal or interpole barriers or other adequate insulation material must be fitted at MCCB load side, (top of MCCB) which is the gas venting end of the MCCB. Load side Terminal or interpole barriers below: Line side OPTIONAL covers below: T2CF Short terminal cover T2CF Standard terminal cover T2CS flush terminal covers T2BA Interpole barriers No cover option XBSSR8009U single sided chassis shown XB8008U double sided chassis Terminal cover selection, 20 A A MCCBs Flush IP20 covers (FC) Short terminal covers (FC) Suit MCCB types Cover length Cat. No. E25, S25 pole cover - set of 2 - T2CS2SG 2 pole cover - set of 2 - T2CS22SG 3 pole cover - set of 2 - T2CS23SG 4 pole cover - set of 2 - T2CS24SG H25, S60, H60, E250, S250, H250 pole cover - set of 2 - T2CS25SG 3 pole cover - set of 2 - T2CS253SG E400, S400, H400, E630, S630 3 pole cover set - RC cov c/w cut-outs - T2CR403SG 4 pole cover set - RC cov c/w cut-outs - T2CR404SG E25, S25 3 pole cover set of 2 22 mm T2CF23SSNBA 4 pole cover set of 2 22 mm T2CF24SSNBA S60, E250, S250 except S250PE 3 pole cover set of 2 30 mm T2CF253SSNBA 4 pole cover set of 2 30 mm T2CF254SSNBA 6-9

10 Terminal cover selection Extended terminal covers (FC) 25/60/250 A covers 400/630 A narrow and wide terminal cover options shown Rear Connect terminal covers (RC) Suit MCCB types Cover length Cat. No. E25, S25 pole cover set of 2 40 mm T2CF2SLNG 3 pole cover set of 2 40 mm T2CF23SLNG 4 pole cover set of 2 40 mm T2CF24SLNG S60, E250NJ, S250NJ, S250GJ (not S250PE) pole cover set of 2 55 mm T2CF6SLNG 3 pole cover set of 2 55 mm T2CF253SLNG 4 pole cover set of 2 55 mm T2CF254SLNG H25, H60, S250PE, H250 3 pole cover set of 2 55 mm T2CF253LLNG 4 pole cover set of 2 55 mm T2CF254LLNG E400, S400, H400, E630, S630 3 ) 3 pole cover narrow set of 2 80 mm T2CF403SLNG 3 pole cover wide set of 2 0 mm T2CF403SWNG XS630, XH630, XS800, XH800 3 ) 3 pole cover set of 2, 30 mm 2H47DAB IP 20 pole insert order per terminal - 2A787DBA XS250 3 ) 3 pole cover set of 2, 30 mm 2H49DAB IP 20 pole insert order per terminal - 2A787DBA E25, S25 3 pole cover set of 2 - T2CR23SG 4 pole cover set of 2 - T2CR24SG H25, S60, H60, E250, S250, H250 3 pole cover set of 2 - T2CR253SG 4 pole cover set of 2 - T2CR254SG E400, S400, H400, E630, S630 3 ) 3 pole cover set of 2 - T2CR403SG XS630, XH630, XS800, XH800 3 ) 3 pole cover set of 2 - UXPD003C Terminal cover locking clip Suits sizes 25 A to 630 A Interpole Barriers ) 2 ) A clip that provides terminal cover locking, and allows a seal device to be fitted E25, S25 Interpole barrier set of 2 S60, E250NJ, S250NJ, S250GJ (not S250PE) Interpole barrier set of 2 H25, H60, S250PE, H250 Interpole barrier set of 2 E400, S400, E630, S630 3 ) Interpole barrier set of 2 XS630, XH630, XS800, XH800, XS250 3 ) Interpole barrier only T2CF00L T2BA23SHA T2BA253SHA T2BA253LHA T2BA403SHA UXQH0004B ) Interpole Barriers, Terminal Covers or suitable insulation, must be fitted to MCCBs. 2 ) Interpole Barriers supplied with MCCBs as standard. 2 with 3 pole MCCBs, 3 with 4 pole MCCBs 3 ) Refer Part C Section 5 catalogue or CPB pocketbook for 4 pole terminal covers 6-0

11 XA Chassis for 25 AF MCCBs 3 pole, double sided, 630 A No. of poles A B ) Escutcheon height 630 A (40 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 8 way chassis shown 6 -

12 XA Chassis for 25 AF MCCBs 3 pole, double sided, 800 A No. of poles A B ) Escutcheon height 800 A (50 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 8 way chassis shown 6-2

13 XA Chassis for 25 AF MCCBs 4 pole, double sided, 630 A No. of poles A B ) Escutcheon height 630 A (40 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 8 way chassis shown 6-3

14 XA Chassis for 25 AF MCCBs 4 pole, double sided, 800 A No. of poles A B ) Escutcheon height 800 A (50 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 24 way chassis shown 6-4

15 XB Chassis for 250 AF MCCBs 3 pole, double sided, 800 A No. of poles A B ) Escutcheon height 800 A (50 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 6-5

16 XB Chassis for 250 AF MCCBs 4 pole, double sided, 800 A No. of poles A B ) Escutcheon height 800 A (50 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 6-6

17 XB Chassis for 250 AF MCCBs 3 pole, LEFT single sided, 800 A No. of poles A B ) Escutcheon height 800 A (50 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 9 way chassis shown 6-7

18 XB Chassis for 250 AF MCCBs 3 pole, RIGHT single sided, 800 A No. of poles A B ) Escutcheon height 800 A (50 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 9 way chassis shown 6-8

19 PXB Chassis for 250 AF, Electronic or Thermal magnetic MCCBs 3 pole, double sided, 800 A ) PXB chassis suits MCCBs 03 mm deep S250PE H/L mm deep S60NJ/GJ E250NJ S250NJ/GJ No. of poles A B ) Escutcheon height 800 A (50 x 6.35 mm Busbar) Dual feed (Universal chassis) standard 6-9

20 XC Chassis for 250 AF MCCBs 3 pole, double sided, 000 A A XC Chassis to suit S60NJ/GJ, E250, S250NJ/GJ Dual feed (universal type) standard Busbar A (50.0 x 9.5 mm) type tested to 50 ka Sec. and 65 ka 0.5 sec Maximum chassis combinations available, 2 x 400 tee offs with 6 x 250 tee offs, x 400 tee off with 7 x 250 tee offs Maximum of 2 x 400 tee offs S250PE MCCBs are not suitable for XC Chassis. Refer PXB or HC Chassis for S250PE. 25 A Frame MCCB tee offs available on request for XC chassis. 6-20

21 XC Chassis for 250 AF and 400 AF MCCBs 3 pole, double sided, 000 A XC Chassis to suit combination S250 & 400 No. of 250 A pairs x 05 mm = mm plus (+) No. of 400 A x 40 mm = mm add 2 mm DIM B - total - mm add 63 mm DIM A - total = mm Example: No. of 250 A pairs 2 x 05 mm = 20_mm plus (+) No. of 400 A x 40 mm = 40_mm add 2 mm DIM B - total mm add 63 mm DIM A - total = 45_mm XC Chassis to suit S60, E/S250NJ/GJ and 400 AF MCCBs No. of ways DIM A DIM B Dual feed (universal type) standard Busbar A (50.0 x 9.5 mm) type tested to 50 ka Sec. and 65 ka 0.5 sec Maximum chassis combinations available, 2 x 400 tee offs with 6 x 250 tee offs, x 400 tee off with 7 x 250 tee offs Maximum of 2 x 400 tee offs S250PE MCCBs are not suitable for XC Chassis. Refer PXB or HC Chassis for S250PE. 25 A Frame MCCB tee offs available onrequest for XC chassis 6-2

22 MCCB Chassis order form XA/XB/PXB/XC TemWay specials and single sided chassis Ordering branch/agent Branch sales order No. Branch transfer order No. Customer Deliver to Contact name Project Customer order No. Branch contact Required by date: / / Double Sided Single Sided L RED L2 WHITE L3 BLUE N BLACK Application DC, 2 pole 3 phase 2/6 3 phase & neutral (XA, XB only) Cross the location of tee-offs on the drawing at left Type & entry XB XB RHS single sided XB LHS single sided 8/9 PXB XC Dual feed (standard) Top feed 24/2 No feed Bottom feed Split tariff (Show location on the drawing) XC MAX 30/5 36/8 42/2 48/24 MCCB ES25/ZS25 3 Pole = 90 mm ES60-250/ZS250 3 Pole = 05 mm S250 PE 3 Pole = 05 mm ES25/ZS25 4 Pole = 20 mm ES60-250/ZS250 4 Pole = 40 mm S Amp 3 Pole = 40 mm Busbar rating & notes 630 amp 60/ amp Delivery Customer Workshop XA/XB MAX 72/36 Quantity Supplier reference No. Works order No. Due date: / / Description NHP Fax Ref. No. 6-22

23 HC High Current chassis for 250 AF to 250 AF MCCBs Features Double sided 3 pole MCCB chassis Compact single sided chassis 3 or 4 pole 250 A, 600 A or 2200 A rated main bars enclosure sizes for more economical chassis sizing Front connect tags supplied as standard Complies with AS/NZS 3439, AS/NZS Form of separation 4bih. AS/NZS : 2000 (Annex ZF) Circuit breakers are reverse fed as standard 4th pole neutral bars 00 % rated Accepts MCCBs rated 2 A to 250 A Ordering: choose from pre-assembled types, or custom assembly Stocked assembled chassis selection - Suit MCCB amp frames shown below Main bar rating Chassis Size 800 A 6 units 630 A 5 units 400 A 4 units 250 A 3 units Cat. No. 600 A DS - 2 x x x 250 HCSTDDS A DS - 4 x x 250 HCSTD2DS A SS left - x 630 x x 250 HCSTD3SSL A SS right - x 630 x x 250 HCSTD4SSR A SS left - x 630 x x 250 HCSTD5SSL A SS right - x 630 x x 250 HCSTD6SSR A SS left x 800 x 630 x x 250 HCSTD7SSL A SS right x 800 x 630 x x 250 HCSTD8SSR22243 Example of a single side HC chassis with MCCBs and terminal covers fitted Front connect try option Standard T2CF front connect terminal covers T2CF40 - Narrow T2CR rear connect terminal covers T2CR253S 6-23

24 HC High Current chassis 250 AF to 250 AF MCCBs Chassis box selection for custom assembly Chassis Size Main bar rating (A) Icw ka rating ( sec) MCCB unitspace (mm) Overall height (mm) ) Cat. No. 5 U 60 HC U 78 HC U 826 HC U 934 HC A 27 U 042 HC (2 x U 50 HC x 20 mm bars) 33 U 258 HC U 366 HC U 474 HC U 582 HC U 690 HC U 60 HC U 78 HC U 826 HC U 934 HC A 27 U 042 HC (2 x U 50 HC x 30 mm bars) 33 U 258 HC U 366 HC U 474 HC U 582 HC U 690 HC U 60 HC U 78 HC U 826 HC U 934 HC A 27 U 042 HC (2 x U 50 HC x 50 mm bars) 33 U 258 HC U 366 HC U 474 HC U 582 HC U 690 HC22453 ) Height excludes extended and attached busbar Overall chassis depth when MCCBs are fitted is 269 mm Dual feed optional. Refer next page for chassis Tee Off details Refer to the following pages for detailed dimensions Ordering form refer to page 6-27 HC chassis not compatible with TemBreak, 25 A 400 A MCCBs 6-24

25 HC High Current MCCB chassis MCCB HC Chassis TEE OFF s Frame MCCB Amp Frame (A) MCCB width Single sided Cat. No. Right load Single sided Cat. No. Left load Double sided Cat. No. S60 / U HCR250 HCL250 HCD250 H25 / S250PE U HCR250P HCL250P HCD250P E/S Narrow U HCRN630 HCLN630 HCDN630 E/S Wide U HCRW630 HCLW630 HCDW630 XS/XH630/ U HCR800 HCL800 HCD800 XS250 Right hand load250 6 U HCR250 - HCR250 XS250 Left hand load U - HCL250 HCL250 Ordering ) Add tee off s as required to the chassis enclosure to complete the chassis components list. 2 ) Note: If MCCBs below 32 A and a ka rating above 30 ka are required, use H25NJ320 and H25NJ332 with 250 A Tee Off catalogue number above. 3 ) 400 A MCCBs fitted with a same width narrow cover are 4 units in width. 4 ) 630 A MCCBs fitted with a wide width cover are 5 units in width. 5 ) For ordering, use order from chassis catalogue or contact NHP. Ordering example MCCBs 800 A 630 A 400 A 250 A 250 A Example: Single sided chassis Chassis components Quantity Chassis box 600 A, less tee offs HC A left load tee off set HCL A left load tee off set HCLW A left load tee off set HCLN A left load tee off set HCL A left load tee off set HCL250 Testing: The HC chassis has been unconditionally type tested (no MCCBs fitted) in Australia, at a short time rating of 65 ka for second. Bottom or top extended main bars are optional. For MCCB terminal cover selection use refer pages 6-9 and

26 HC Chassis configuration types Examples HC Chassis with 250 A Frame MCCBs Double sided, 3 pole, 250 A main bars HC Chassis with 250 A 800 A MCCBs Double sided, 3 pole, 2200 A main bars 400/630 A termial covers A 630 A MCCB using a T2CF403SWNG wide cover is 5 units of width (narrow cover optional) 5 Units wide: MCCB + wide cover 4 Units wide: MCCB + narrow cover A 400 A MCCB using a T2CF403SLNG narrow (same width as MCCB) cover is 4 units wide (wide cover optional) HC Chassis MCCB mounting brackets Metal extension brackets are attached to the side of HC chassis to cover rear of fitted MCCBs & terminal covers 400 A / 630 A MCCBs 6-26

27 HC High Current chassis order form Customer Account No. Deliver to Order No. Quantity Price $ Contact Required Delivery / / CHASSIS SPECIFICATIONS 3 Pole Double sided POLES & TYPE ENTRY 3 Pole Single Sided Right Hand Load 3 Pole Single Sided Left Hand Load 4 Pole Single Sided Right Hand Load 4 Pole Single Sided Left Hand Load Top Entry only Bottom Entry only Dual Feed RATING 65 ka for sec 250 Amp 2-0 x 20 mm 600 Amp 2-0 x 30 mm 2200 Amp 2-0 x 50 mm 3 POLE TEE OFFS - DOUBLE OR SINGLE SIDED Qty Units Total Type x 3 = 250 x 3 = 250P x 4 = 400 x 5 = 630 x 6 = 800 x 6 = 250 S60-E250/S250 H25/S250PE E400/S400 * E630/S630 XS/XH630/800 XS250 (per tee-off) Indicate load side Total Units * 8 mm gap each side of 630 amp MCCB 4 POLE TEE OFFS - SINGLE SIDED ONLY Qty Units Total Type x 4 = 250 x 4 = 250P x 6 = 400 x 7 = 630 x 8 = 800 x 8 = 250 S60./S250 H25/S250PE E400/S400 * E630/S630 XS/XH630/800 XS250 Left Right MCCB LINE SIDE BOLTS TORQUE SETTINGS 250 AMPS M6 7Nm AMPS M8 4Nm 250 AMPS M0 30Nm MAIN BAR CONNECTIONS M0 44Nm CUSTOMER REFERENCE DRAWINGS FOR ALL MOUNTING, CUT OUT AND CONNECTION DETAILS 3 Pole Double Sided MD-L Pole Single Sided MD-L Pole Left Hand Single Sided MD-L Pole Right Hand Single Sided MD-L Total Units * 8 mm gap each side of 630 amp MCCB Note: ** 250P TEE OFFS SUIT H25 AND S250PE ONLY Chassis are supplied crated and without MCCBs fitted All circuit breakers to be fitted reverse fed by customer Pan Width = 440 mm including mounting channel Depth = 269 mm from rear to escutcheon Unit = 36 mm Internal use only NHP Branch NHP Contact Sales Order Works order 6-27

28 HC High Current chassis Double sided, 3 pole Dimensions XS250 ) TOP ø 0.5 MOUNTING HOLES XS250 2 ) 2 ) XS/XH630/800 S630 S400 S250PE S250 BOTTOM S250 S400 S630 XS/XH630/800 ) Escutcheon/ door height: from the surface of the chassis mounting panel to the outside of the escutcheon or door surface. 2 ) Refer next page for dimensions. Form of construction to AS/NZS 3439.: 2000: Up to 4 bih (requires terminal covers to be fitted and switchboard design to segregate the incoming connections and other busbars in the switchboard.) For a double sided chassis, only circuit breakers of the same width can be mounted opposite each other. 600 A chassis shown above. Options A with 2 off 20 x 0 mm busbars per phase 600 A with 2 off 30 x 0 mm busbars per phase 2200 A with 2 off 50 x 0 mm busbars per phase XS A MCCBs are always single sided mounted, and left or right side load connection is specified at the time of ordering. 6-28

29 HC High Current chassis Double sided, 3 pole Dimensions and panel cut out detail XS250 XS/XH630/800 S630 S400 S250PE S250 Chassis Dimension reference table Chassis size DIM A DIM B Size - 5 Units Size 2-8 Units Size 3-2 Units Size 4-24 Units Size 5-27 Units Size 6-30 Units Size 7-33 Units Size 8-36 Units Size 9-39 Units Size 0-42 Units Size - 45 Units MCCB unit widths - Unit = 36 mm MCCB frame size Units S250 3 S250PE 3 S400 4 S630 5 XS/XH630/800 6 XS250 6 Cut out dimensions are centered on the MCCB toggle 6-29

30 HC High Current chassis Single sided, 3 pole Dimensions - LEFT hand load connection S250 ) TOP ø 0.5 MOUNTING HOLES XS250 2 ) 2 ) XS/XH630/800 S630 S400 S250PE S250 BOTTOM S400 S630 XS/XH630/800 ) Escutcheon / door height: from the surface of the chassis mounting panel to the outside of the escutcheon or door surface. 2 ) Refer next page for dimensions. The chassis busbar supports allow for a full size neutral. Form of construction to AS/NZS 3439.: 2000: Up to 4 bih (requires terminal covers to be fitted and switchboard design to segregate the incoming connections and other busbars in the switchboard.) 600 A chassis shown above. Options: 250 A with 2 off 20 x 0 mm busbars per phase 600 A with 2 off 30 x 0 mm busbars per phase 2200 A with 2 off 50 x 0 mm busbars per phase A left sided chassis is shown above. For RIGHT sided versions the 250 A MCCB will be the only breaker that changes location on the chassis. A RIGHT sided MCCB mounted layout will be mirror image of a left sided chassis for all MCCBs. 6-30

31 HC High Current chassis Single sided, 3 pole Dimensions - LEFT hand load connection XS250 XS/XH630/800 S630 S400 S250PE S250 Chassis Dimension reference table Chassis size DIM A DIM B Size - 5 Units Size 2-8 Units Size 3-2 Units Size 4-24 Units Size 5-27 Units Size 6-30 Units Size 7-33 Units Size 8-36 Units Size 9-39 Units Size 0-42 Units Size - 45 Units MCCB unit widths - Unit = 36 mm MCCB frame size Units S250 3 S250PE 3 S400 4 S630 5 XS/XH630/800 6 XS250 6 A left sided chassis is shown above. For right handed single sided versions, cut out dimensions are mirrored on the chassis centerline. For RIGHT sided versions the 250 A MCCB will be the only breaker that changes location on the chassis. A RIGHT sided 250 A MCCB mounted layout will be mirror image of a left sided mounted MCCB. 6-3

32 HC Chassis/load-break switch combination One possible connection method for a HC High current chassis and a Socomec load-break switch HC front connect tags are optional Example - Connection method HC Chassis and Socomec 600 A Load-break switch Socomec 600 A load-break switch HC Chassis Align centre of load-break switch with centre busbar of chassis CUBIC captive nuts for fastening to chassis busbar (nuts supplied with chassis as standard) ) Spacers fitted between connection tags and chassis busbars ) A connection Clamp, nut and bolt kit is available, Catalogue Number: The kit contains 4 x 60 mm x M0 hex head bolts, 4 clamp-nuts and 4 spring washers. 6-32

33 NHP Chassis testing Temway and HC Chassis have been unconditionaly type tested (no MCCBs fitted) in Australia. Testing has been performed for: Temway XA, XB and XC chassis HC high current chassis Refer NHP for further information. 6-33

34 TemBreak 2 MCCB Accessories Connection and mounting options and accessories Overview TemBreak 2 MCCB connection and mounting accessories facilitate easy installation in any arrangement. Breakers and accessories are easy to fit. They are designed to provide safe and secure termination and mounting points. The 25 A and 60/250 A frame models have a choice of 45 mm front cut-out patterns, making them compatible in appearance when used in DIN style panel or switchboard applications. 45 mm 45 mm DIN Cut-out pattern Connection and mounting options DIN rail adaptor 25 AF MCCB (T2 DA) Rear connect terminals (T2 RP) Extension busbars (T2 FB) Tunnel clamp terminals (T2 FW) Line and loadside plug-in MCCB (T2 PM) TemPlug (T2 UP) 6-34

35 TemBreak 2 MCCB Connection and mounting options and accessories Mounting on 35 mm DIN Rail The DIN rail adaptor is easily fitted to the rear of 3 pole E25 and S25 models to allow clip-on mounting of the MCCB to 35 mm DIN rail. The 45 mm cut-out design of TemBreak 2, 25 A and 60/250 A breakers, makes them suitable for mounting alongside modular devices in DIN style distribution boards. DIN rail adaptor 25 AF MCCB (T2 DA) (Rear view) 6-35

36 TemBreak 2 MCCB Connection and mounting options and accessories Connection of busbars and terminated cables This connection method is standard for all front connected (FC) MCCB models. Solid conductors or cables terminated with crimp lug terminals can be used. Serrated terminal surface Each terminal on 60 A and 250 A models has a serrated surface. This provides excellent grip for heavy cables terminated with crimp lug terminals, thereby preventing sideways rotation of the lug. Crimp lugs (compression terminals) Dimensions (mm) MCCB frame size (A) Max width (W) DIA (d) Centre to tip (e) 25 A (max.) 60 & 250 A (max.) 400 & 630 A (max.) Connection of large conductors and multiple conductors Flat bars (T2 FB) are terminal extensions which can be fitted to line or loadside terminals and are used to connect large conductors and multiple conductors. Available for field fitting in sets of 3 or 4 bars. Direct entry of stranded cable Tunnel clamp terminals (T2 FW) can be used to secure stranded cable directly to the MCCB. Available for field fitting in sets of 3 or 4. Tunnel terminal to suit MCCB Cable capacity E25, S25, S25-NF.5 to 50 mm 2 ( cable) H25,L25, S60-NF.5 to 70 mm 2 ( cable) S60, E250, S250, H250, L to 20 mm 2 ( cable) E400, S400, H400, L to 240 mm 2 ( cable) 60 to 20 mm 2 (2 cable) Termination in separate compartment Rear connections (T2 RC) allow termination of conductors in a different switchboard compartment to the MCCB body. The terminal bar can be rotated in steps of 45 degrees in the field. 6-36

37 TemBreak and 2 MCCB - Accessories Crimp lugs (compression type) Nominal wire size (mm 2 ) Frame (A) Breaker XM30 XM30PB CAL.5 5 CAL2.5 5 CAL4 5 CAL6 5 CAL0 5 CAL6 6 MT2.5 M5 MT2.5 M5 MT4 M5 MT6 M5 MT0 M5 MT6 M5 25 ) E25NJ S25NF S00GF CAL2.5 8 CAL4 8 CAL6 8 CAL0 8 CAL6 8 CAL25 8 CAL35 8 S25NJ MT2.5 M8 MT2.5 M8 MT4 M8 MT6 M8 MT0 M8 MT6 M8 MT25 M8 MT35 M8 S25GJ ZS25GJ Frame (A) Breaker H/L ) / /250 S/H/L60 CAL35 8 CAL50 8 CAL70 8 CALCB95 8 CALCB20 8 CALCB50 8 CALCB85-0 E/S/H/L250 MT35 M8 MT50 M8 MT70 M8 MT95-M8 ZS60 ZS250 E400NJ S400CJ S400NJ S400NE S400GJ S400GE H400NJ CAL35 0 CAL50 0 CAL70 0 CAL95 0 CALCB20 0 CALCB50 0 CALCB85-0 H400NE MT35 M0 MT50 M0 MT70 M0 MT95 M0 MT20-M0 MT50-M0 L400NE L400NJ XV400NE E630NE S630CE S630GE XS630NJ XS630SE Use extention busbars XH630SE CAL35 2 CAL50 2 CAL70 2 CAL95 2 CAL20 2 CAL50 2 CAL85 2 CAL240 2 CAL300 2 XS800NJ MT35 M2 MT50 M2 MT70 M2 MT95 M2 MT20 M2 MT50 M2 MT85 M2 MT240 M2 XS800SE XH800SE Nominal wire size (mm 2 ) XS250SE CAL70 2 CAL95 2 CAL20 2 CAL50 2 CAL85 2 CAL240 2 CAL300 2 XV250NE MT70 M2 MT95 M2 MT20 M2 MT50 M2 MT85 M2 MT240 M2 Connection (one electric cable) If low clearance occurs use a recommended tape or insulation. Connection(two electric cables) If low clearance occurs use a recommended tape or insulation. ) Recommended lugs also suit TemBreak MCCBs. 2 ) Suit TemBreak MCCBs up to 50 mm 2 only. These compression terminals available from CABAC Cable Accessories, and JST Australia. Part No. Key: CAL = CABAC lugs, MT = JST lugs 6-37

38 TemBreak and 2 MCCB - Accessories Connection and mounting options Rear-connection type (RC) - Bolt stud Applicable breakers Breaker mounting screw Mounting plate E/S series - E/S25, ZS25 XM30 PB Conductor (not supplied) Bar stud (60 A to 800 A) Breaker mounting screw Terminal screw Conductor (not supplied) Vertical Breaker mounting screw Assembling plate Bar stud fixing bolt Bar stud Bar stud fixing bolt Mounting angle (not supplied) Assembling plate Conductor (not supplied) Can be changed by the user horizontal or vertical Terminal screw Flat bar stud (250 AF and larger) Applicable breakers Breaker mounting screw Terminal screw E/S/H/L series - H/L25, S/H/L60, ZS60/250, E/S/H/ L250, E/S/H/L 400/630 XH/XS/XV series - XV400, XV630, XV800, XS/XH 630/800 XM series - XM30PB XS/XV series - Horizontal or vertical XS250, XV250NE, XS600, TL630/250NE XS series - Vertical XS2000NE, XS2500NE Conductor (not supplied) 250/600 A RC terminals are a factory installation. Can be configured for either vertical or horizontal connection. Refer following pages for terminal screw sizes and standard torques. 6-38

39 TemBreak and 2 MCCB - Accessories Connection and mounting options Front-connection type (FC) Compression (crimp lug) type Terminal screw Breaker mounting screw Attached flat bar terminals Breaker mounting screw Flat bar Terminal screw Terminal screw sizes and standard torques (refer following pages) Compression terminal crimp lugs (refer page 7-37) Terminal screw sizes and tightening torques (refer following pages) Type and size of screw to suit Solderless and Flat bar connection terminals Applicable breaker Screw type ZS series E/S/H/L series XM series Pan headed screw E25NJ M8 S25NJ M8 ZS25GJ M8 S25GJ M8 XM30PB S00GF M8 S25NF M8 Hex socket head bolt S/H/L60 M8 E/S/H/L250 M8 ZS 250 M8 E/S/H/L400 M0 E/S 630 M0 XV400 M0 M5 6-39

40 TemBreak 2 MCCB Connection and mounting, plug-in type Plug-in mounting The plug-in mounting system allows fast replacement of the MCCB body without the need to disturb the terminations. Solid conductors or cables terminated with compression (crimp) lugs can be used. Plug-in safety lock The plug-in MCCB body is automatically locked to the base when the contacts are closed (toggle ON). It cannot be removed unless the contacts are in the isolated position (toggle OFF or TRIPPED). This system ensures safe removal of the MCCB from the base. IP 2X Safety interlock Plug-in MCCB and base Plug-in connections and safety lock are fitted to the back of the MCCB The connection bars for plug-in bases are optional and can be configured in the field either for front or rear access. The illustrations below show possible mounting and connection options for plug-in bases. Insulation Plates. Mounted on a base plate with connection bars attached for front access. Insulation plates are supplied as standard and must be fitted. 2. Terminations in separate compartment. Connection bars are attached for top access at the top, and rear access at the bottom. 3. Mounted on angle bars. Connection bars are attached for rear access. 6-40

41 MCCB Technical data TemBreak and 2 Terminal screw sizes and standard torques Type of connection Front connection (FC) screw (A) Rear connection (bolt stud) screw (C) screw (C) Compression (crimp lug) type Attached flat bar type terminals Breakers up to 25 A frame nut (E) Screw Torque Screw Torque Screw Torque Frame (A) Breaker size (A) (N.m) size (C) (N.m) size (C) (kgf.cm) 30 XM30PB (i)m5x (i)m5x / / / 250 Nut dia. (E) Torque (N.m) E25 (i)m8x (i)m6x (ii)m S25 ZS25 H/L25 (iii)m8x (ii)m0x S/H/L60 E/S/H/L250 ZS60 ZS250 E400 (iii)m0x (ii)m2x S400 H400 L400 XV400 E630 (iii)m0x S630 XS630 (ii)m2x XH630 XS800 XH800 XV630 XV800 XS250 (ii)m2x XV XS600 (ii)m2x XS2000 (ii)m0x XS XS Main busbar connection bolts are not supplied with breaker sizes 2000 A and 2500 A. (i): Pan head, (ii): Hex bolt, (iii): Hex socket head bolt Units; mm for screws, N.m for torque.

42 Rear connection (flat bar stud) screw (G) screw (F) screw (G) Plug-in type UNITS: mm for screws newton metres (N.M) for torque nut (H) Breakers up to 800 A frame Breakers of 250 A frame and larger Screw size (F) Torque (N.m) Screw size (G) Torque (N.m) Torque Torque Standard terminal plate or Nut (H) (N.m) 2 ) Screw(I) (N.m) busbar conductor material (i)m5x8 ) Tin/ Nickel plated copper (ii)m6x (ii)m8x (ii)m ) 2 ) Tin/ Nickel plated copper (iii)m0x (ii)m2x (ii)m ) 2 ) Tin/ Nickel plated copper (iii)m0x (ii)m2x (ii)m ) 2 ) Tin/ Nickel plated aluminium 3 ) (ii)m2x (ii)m2x ) 2 ) Tin/ Nickel plated aluminium (ii)m0x (ii)m0x Tin/ Nickel plated aluminium (ii)m0x (ii)m0x Tin/ Nickel plated copper (ii)m0x Tin/ Nickel plated copper (ii)m0x Tin/ Nickel plated copper Main busbar connection bolts are not supplied with breaker sizes 2000 A and 2500 A. (i): Pan head, (ii): Hex bolt, (iii): Hex socket head bolt Units; mm for screws, N.m for torque. To convert from kgf.cm to N.m apply the following: x ) For the plug-in type, the screw is used for mounting instead of the nut. 2 ) Breakers from 630/800 A to 250 A frame are the same as those for plug-in types. 3 ) Copper bars available on request. For 630 A MCCBs, Cat. No. KAI025A. For 800 A MCCBs, Cat. No. KAI026A. 6-43

43 Application data TemBreak and 2 MCCB clearance requirements at 440 V Clearance requirements for MCCBs (phase to phase and earth). When MCCBs are called upon to interrupt large short circuits, ionised gas and arcing material is expelled from the vents at the top of the MCCB. This ionised gas is highly conductive and is also at an elevated temperature when it exits the MCCB via the arc vents. Care must be taken therefore to avoid an arcing fault occurring due to the presence of the ionised gas. Therefore, incoming conductors must be insulated right up to the terminal opening of the MCCB. This also applies to the attached busbars supplied as a proprietory part with the MCCB. Proprietary type interpole barriers may be used to achieve creepage and clearance requirements. Conductors must not impede the flow of ionised gas. Insulating distance from Line-End for 380/45 V When earth metal is installed within proximity of the breakers, the correct insulating distance must be maintained, (refer to Table ). This distance is necessary to allow the exhausted arc gases to disperse. This could include the mounting plate or side panel within a switchboard. Table below, illustrates the minimum clearance that must be maintained A Distance from lower breaker to open charging part of terminal on upper breaker (front connection) or the distance from lower breaker to upper breaker end (rear connection and plug-in type) B Distance from breaker end to ceiling (earthed metal) B2 Distance from breaker end to insulator C Clearance between breakers D Distance from breaker side to side plate (earthed metal) Insulator Ceiling (earth metal) Side plate B B B B2 B2 B2 WARNING: EXPOSED CONDUCTORS INCLUDING TERMINALS AT ATTACHED BUSBARS MUST BE INSULATED TO AVOID POSSIBLE SHORT CIRCUITING OR EARTHING DUE TO FOREIGN MATTER COMING INTO CONTACT WITH THE CONDUCTORS. A A Insulating tape A D Front connection, terminal screw Front connection, attached flat bar Rear connection, plug-in type. C Busbar Cable insulation Uninsulated busbar Terminal cover or interpole barrier Terminal cover or interpole barrier Lug When using the terminal bar (optional), the specified insulating distance must be maintained. All dimensions in mm. 6-45

44 Application data TemBreak 2 MCCB clearance requirements at 440 V AC (max.) The table below illustrates the minimum clearance that must be maintained A Distance from lower breaker to open charging part of terminal on upper breaker (front connection) or the distance from lower breaker to upper breaker end (rear connection and plug-in type) B Distance from breaker end to ceiling (earthed metal) B2 Distance from breaker end to insulator C Clearance between breakers D Distance from breaker side to side plate (earthed metal) Warning: Exposed conductors including terminals at attached busbars must be insulated to avoid possible short-circuiting or earthing due to foreign matter coming into contact with the conductors. TemBreak 2 Insulation Distance in mm (at 440 V AC Maximum) MCCB Cat. No. Type A B B2 C D XM30 PB E25 NJ S25 NF S25 NJ S25/ ZS25 GJ H25 NJ L25 NJ S60 NF S60 NJ S60 GJ H60 NJ L60 NJ E250 NJ S250 NJ S250/ ZS250 GJ S250 PE H250 NJ H250 NE L250 NJ E400 NJ S400 CJ S400 NJ S400 GJ S400 GE/ PE H400 NE L400 NE E630 NE S630 CE S630 GE All dimensions in mm. 6-46

45 Application data TemBreak MCCB clearance requirements at 440 V AC (max.) The table below illustrates the minimum clearance that must be maintained A Distance from lower breaker to open charging part of terminal on upper breaker (front connection) or the distance from lower breaker to upper breaker end (rear connection and plug-in type) B Distance from breaker end to ceiling (earthed metal) B2 Distance from breaker end to insulator C Clearance between breakers Warning: Exposed conductors including terminals at attached busbars must be insulated to avoid possible short-circuiting or earthing due to foreign matter coming into contact with the conductors. TemBreak Insulation Distance in mm (at 440 V AC Maximum) MCCB Cat. No. A B B2 C D XM30PB XS630CJ XS630NJ XS630SE XS800NJ XS800SE XH630SE XH800SE XH800PE XS250SE XH630PJ XH800PJ XS600SE XS2000NE XS2500NE XS3200NE All dimensions in mm 6-47

46 Application data Clearance for mining MCCBs (000 V) and incoming connections The arc chamber in Terasaki TemBreak circuit breakers is located adjacent to the LINE side terminals. The chamber is vented through holes located just above each line terminal. The holes are covered by a flap which deflects when arc gases are being expelled. Even at low fault levels the arc gases that are released are very hot and reduce the dielectric strength of the air in the vicinity of the terminals. If care is not taken when installing the MCCB this gas can cause arcing faults on the incoming bars or cables. Significant voltage transients may also be produced as inductive circuits are switched and contribute to an arcing fault. These problems affect all circuit breaker installations to varying degrees. To ensure that problems are not created by the installation please observe the following recommendations. More detailed installation instructions can be obtained on request. Insulate conductors. No exposed conductors to be in circuit breaker zone (see note 4). Do not restrict this area Insulation Fit terminal cover or install interpole barriers (Interpole Barriers and terminal covers supplied with V breakers) (see note 6) Interpole barrier for V style breakers Fit terminal bolt insulation kit - V400 only. (Terminal bolt cap and cover - supplied with breaker) Two piece rear insulating screens (supplied with XV breaker) Insulate this area if using interpole barrier Metal cover ) Always observe LINE/LOAD markings. 2 ) Ensure insulation on incoming conductors is adequate. Do not use low grade heat shrink (some grades split at operating temperatures). 3 ) Minimum clearance to earth metal, above and below breaker - 20 mm (XV250NE - 50 mm). To sides of breaker - 40 mm. 4 ) Switchboard construction to be a minimum Form 2 to AS/NZS with IP 3X protection between busbar and circuit breaker zones. 5 ) Actual construction can vary to the above but in all cases it is the responsibility of the switchboard manufacturer to ensure compliance to the relevant standard i.e. AS/NZS ) TL00EM MCCBs must use a TL00EMTLC LINE side terminal cover. V400 can use either a terminal cover or interpole barriers. 6-48

47 Application Data Clearance and installation instructions for TL00EM 000 V mining MCCB WARNING: These instructions must be strictly adhered to otherwise warranty is void and arcing faults could result. These instructions are for the fitting of Terminal covers/interpole barriers for the Terasaki TL00EM series mining (000 V) breakers. They should be used in conjunction with instructions supplied with the circuit breaker. List of components to be assembled x TL00EM MCCB x Terminal cover General guidelines Always observe LINE/LOAD markings. Do not reverse connect. Keep the LINE side circuit breaker zone free from any obstruction. Insulate conductors. No exposed conductors to be in circuit breaker zone. Do not use low-grade heat shrink (minimum peak operating temperature at 05 C). Minimum clearance to earth metal above and below the breaker 00 mm. At the sides of the breaker 40 mm. Switchboard construction to be a minimum Form 2 to AS/NZS with IP 3X protection between busbar and circuit breaker zones. All breakers to have LINE side terminal covers. 6-49

48 Application Data Clearance and installation instructions for XV V mining MCCB WARNING: These instructions must be strictly adhered to otherwise warranty is void and arcing faults could result. These instructions are for the fitting of Terminal covers/interpole barriers and Insulation plates for Terasaki XV400 series mining (000 V) breakers. They should be used in conjunction with instructions supplied with the circuit breaker. XV400NE List of components to be assembled x XV400 MCCB 2 x Terminal covers 2 x Terminal cover mounting screws 2 x Terminal cover dodge inserts 2 x Insulated base plates 3 x Insulated terminal bolt caps General guidelines Always observe LINE/LOAD markings. Do not reverse connect. Keep the LINE side circuit breaker zone free from any obstruction. Insulation base plates must be fitted to LINE/LOAD side of the breaker. Insulated terminal bolt caps must be fitted to LINE side of the breaker (as shown in the photo above). All breakers must have LINE side terminal cover or interpole barrier fitted. When interpole barrier is installed additional insulation on inside of panel door is required (as shown in diagram above). Insulate conductors. No exposed conductors to be in circuit breaker zone. Do not use low-grade heat shrink (minimum peak operating temperature at 05 C). Minimum clearance to earth metal above and below the breaker 20 mm. At the sides of the breaker 40 mm. Switchboard construction to be a minimum Form 2 to AS/NZS with IP 3X protection between busbar and circuit breaker zones. 6-50

49 Application Data Clearance and installation instructions for XV630/ V mining MCCB WARNING: These instructions must be strictly adhered to otherwise warranty is void and arcing faults could result. These instructions are for the fitting of Terminal covers/interpole barriers and Insulation plates for Terasaki XV630/800 series mining (000 V) breakers. They should be used in conjunction with instructions supplied with the circuit breaker. List of components to be assembled x XV630/800 MCCB 2 x Terminal covers 4 x Terminal cover mounting screws 4 x Terminal cover dodge inserts 2 x Terminal cover stand-off posts 2 x Insulated base plates General guidelines Always observe LINE/LOAD markings. Do not reverse connect. Keep the LINE side circuit breaker zone free from any obstruction. Insulation base plates must be fitted to LINE/LOAD side of the breaker (as shown in the diagram above). All breakers must have LINE side terminal cover or interpole barrier fitted. When interpole barrier is installed additional insulation on inside of panel door is required (as shown in diagram above). Insulate conductors. No exposed conductors to be in circuit breaker zone. Do not use low-grade heat shrink (minimum peak operating temperature at 05 C). Minimum clearance to earth metal above and below the breaker 20 mm. At the sides of the breaker 40 mm. Switchboard construction to be a minimum Form 2 to AS/NZS with IP 3X protection between busbar and circuit breaker zones. 6-5

50 Application Data Clearance and installation instructions for XV V mining MCCB WARNING: These instructions must be strictly adhered to otherwise warranty is void and arcing faults could result. These instructions are for the fitting of Terminal covers/interpole barriers and Insulation plates for Terasaki XV250 series mining (000 V) breakers. They should be used in conjunction with instructions supplied with the circuit breaker. List of components to be assembled x XV250 MCCB 2 x Terminal covers 4 x Terminal cover mounting screws 4 x Terminal cover dodge inserts 2 x Insulated base plates General guidelines Always observe LINE/LOAD markings. Do not reverse connect. Keep the LINE side circuit breaker zone free from any obstruction. Insulation base plates must be fitted LINE/LOAD side of the breaker (as shown in the diagram above). All breakers must have LINE side terminal cover or interpole barrier fitted. When interpole barrier is installed additional insulation on inside of panel door is required (as shown in diagram above). Insulate conductors. No exposed conductors to be in circuit breaker zone. Do not use low-grade heat shrink (minimum peak operating temperature at 05 C). Minimum clearance to earth metal above and below the breaker 50 mm. At the sides of the breaker 40 mm. Switchboard construction to be a minimum Form 2 to AS/NZS with IP 3X protection between busbar and circuit breaker zones. 6-52