MULTIBLOC 1.RST8 Size 1, 250A, 690VAC, Design for bus bar installation, Triple Pole
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1 MULTIBLOC 1.RST8 IEC FUSE SWITCH DISCONNECTORS NH FUSE SWITCH DISCONNECTOR The production programme of MULTIBLOC 1.RST8 comprises NH fuse switch disconnectors for 250A. Products are designed in triple pole units for direct installation on to 40 mm and 60mm bus bar systems. For installation of MULTIBLOC NH fuse switch disconnectors of different sizes in distribution units with central cover, respective covers are used to obtain a uniform profile in height and length. MULTIBLOC size 1 are designed for NH fuse-links in accordance with IEC/EN , VDE , size 1: 250A. The system is a modular system, which allows the installation and combination of individual components. MULTIBLOC offers the user the possibility of fast and easy installation as well as a high degree of security during installation and maintenance. TECHNICAL DATA OVERVIEW Voltage AC 690 VAC Voltage DC 440 VDC Amper (A) 250 A Size per Standard 1 Ue = AC 400 V; Ie = 250 A SCCR Ue = AC 500 V; Ie = 250 A Ue = AC 690 V; Ie = 200 A Mounting bus bar installation Switchability triple pole switching 80kA 80kA 50kA (3-,4-pole) FEATURES & BENEFITS Touch protection IP 20 (IP rating maintained if fuse-link in test mode) Padlocking and sealing of switch door cover - optional Parking position of switch operating cover even with fuse-links Inserted Suitable for bottom/top cable terminal connections Cable termination: screw, bolt, clamp strap, extendable for V-terminal optional Direct installation on 40 and 60mm bus bar systems (snap on) Universally useable for bus bars with thickness of 5 and 10mm and widths of 12 30mm Fuse monitoring - optional Indicating switch for switch door position - optional Safe on load connection/disconnection: accordance with IEC APPLICATIONS Panel boards for industrial use Feeder pillars for industrial use Meter distribution units Measuring transformer cabinets Transmitting stations for telecommunications STANDARDS IEC/EN For NH fuse-links size 1 in accordance with IEC/EN , VDE EP.MERSEN.COM 1
2 PRODUCT RANGE MULTIBLOC 1.RST8 size 1 250A, 690VAC bus bar installation, triple pole Reference Poles Cable termination components Design Weight kg 1 Package T M10 terminal screws piece Q clamp straps mm² piece R M10 terminal screws with electronic fuse monitoring ESÜ installed (rated voltage = 525VAC) piece M M10 terminal screws with electro-mechanic fuse monitoring MZS installed (galvanic isolation) piece P M10 terminal screws main incomer piece 1 weight in kg per piece or set including package EP.MERSEN.COM 2
3 TECHNICAL DATA IN ACCORDANCE WITH EN / IEC RST8 triple pole Number of poles/phases 3 Size 1 Conventional free air thermal current with NH-fuse links I th 250 A Max. power dissipation of fuse links P n 23 W Conventional free air thermal current with solid links I th 400 A Max. power dissipation of solid links P n 2,6 W Utilization category to IEC/EN U e = AC 400 V; I e = 250 A U e = AC 500 V; I e = 250 A U e = AC 690 V; I e = 200 A U e = DC 440 V; I e = 250 A Rated operational voltage U e Rated insulation voltage U i Rated impulse withstand voltage U imp Rated frequency AC 23 B AC 22 B AC 21 B DC 21 B 690 V 1000 V 12 kv Hz Degree of protection IP 20 Degree of pollution 3 Rated duty uninterrupted duty Rated conditional short-circuit current with fuse links U e = AC 400 V; I e = 250 A U e = AC 500 V; I e = 250 A U e = AC 690 V; I e = 200 A Rated short circuit making capacity with solid links I cm Rated short-time withstand current I cw Power dissipation by I th without NH-fuse links Installation mode 80 ka 50 ka 50 ka 8.2 kasw 8 ka / 1 s 20 W bus bar installation Cable terminal connection Standard cable terminal for cable lugs Cu max. for cable lugs Al max. for copper bars with max. dimensions Bus bar terminal connection Bus bar width (bus bar system = 40 mm) Bus bar thickness (bus bar system = 40 mm) Bus bar width (bus bar system = 60 mm) Bus bar thickness (bus bar system = 60 mm) Bus bar system M10 2 x 150 mm² 2 x 185 mm² 30 x 10 mm 12 mm mm mm mm 40 mm 60 mm EP.MERSEN.COM 3
4 DIMENSIONS MULTIBLOC 1.RST8 NH-fuse switch disconnector triple pole design for bus bar installation (M01123a) 5 mm with distance piece switch board cut out Dimensions in mm EP.MERSEN.COM 4
5 DIMENSIONS MULTIBLOC main incomer size 1 (M ) , max: 30 x bus bar system: max. 60 x 10 tightening torque: cable terminal M10: 20 Nm bus bar terminal: hexagon screw: M10: 15 Nm Dimensions in mm fig.1 fig.3 IN 2xI N incoming current IN 1xI N incoming current fig.2 IN 2xI N incoming current EP.MERSEN.COM 5
6 DIMENSIONS MULTIBLOC 1.ST8 and 1.RST8 triple pole with electronic fuse monitoring ESÜ (M ) Dimensions in mm EP.MERSEN.COM 6
7 DIMENSIONS MULTIBLOC 1.ST8 and 1.RST8 triple pole with electro-mechanic fuse monitoring MZS (M ) 287 Dimensions in mm EP.MERSEN.COM 7
8 DIMENSIONS MULTIBLOC bus bar adapter with clamp terminal for 1.ST8 (M01151a-1) ,5 70 mm 90 mm m Dimensions in mm 161 m = max. 60 x 10 tightening torque: M10: 25 Nm M8: 15 Nm EP.MERSEN.COM 8
9 DIMENSIONS Cable termination size 1 (MA 98e-1) screw treminal: (standard) bolt terminal: (standard) terminal: clamp strap: (option/accessory) M10x20 screw tightening torque 20Nm M10 nut tightening torque 20Nm Gr.1: M6x30 screw tightening torque 6Nm spring washer M10 spring washer M10 spring ring clamp strap cable lug or copper bar washer size. 1: for values x smaller than 2.5 mm use washer in addition M10x30 screw tightening torque 20Nm screw and bolt terminal for cable lugs: size. 1: DIN max. 150mm² DIN max. 150mm² DIN max. 185mm² copper bars: size 1: for round stranded conductors mm² for bars or laminated copper 18 x Dimensions in mm EP.MERSEN.COM 9
10 EXPLODED SKETCH MULTIBLOC 1.RST8 NH-fuse switch disconnector triple pole design for bus bar installation (E ) no. article short Description Cover for cable termination triple pole bus bar touch protection Cover shield, 210 x 260 mm indicator for switch door position Locking device f. windows,1 Set=3 pieces Cover sealing device, installation set 3 EP.MERSEN.COM 10
11 ACCESSORIES Cover shields Reference Design Weight Package Z cover shield for installation in distribution units size (width x height): 210 x 260 mm for one 1.ST8/1.RST8 triple pole 68 g 1 piece X cover shield for installation in distribution units size (width x height): 230 x 283 mm for one 1.ST8/1.RST8 triple pole 90 g 1 piece Cover/shrouds for cable termination Reference Design Weight Package V cover for cable terminal connection for 1.ST8 triple pole, 1 set = 2 pieces 0.29 kg 1 set G bus bar touch protection for 1.RST8 82 g 1 piece Indication facilities Q Locking and sealing devices/cover sealing device L Locking and sealing devices/locking device for window K Reference Design Weight Package indicator for switch door position micro switch, 1 change-over contact 5 A, 250 V Reference Design Weight Package cover sealing device-installation set for 00.ST8 1-, 2-, 4-pole and 1.ST8/RST8 Reference Design Weight Package locking device for window for 00.ST8 1-, 2-, 4-pole and 1./2.ST8/RST8 1 set = 3 pieces 0.09 kg 1 piece 10 g 1 piece 20 g 1 set EP.MERSEN.COM 11
12 ACCESSORIES Varieties of cable termination Reference Design Weight Package E clamp strap mm² for 1.ST8 1-4-pole + 1.RST8, 1 set = 3 pieces 0.14 kg 1 set J V-shaped lug size 1, M8, for V-terminal clamp size 1 for 1.ST8 1- to 4-pole + 1.RST8, supplementary set for V-terminal with use of V-clamps 1 set = 3 pieces 0.09 kg 1 set EP.MERSEN.COM 12
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