10 Load and Motor Switchgear

Transcription

1 0 Load and Motor Switchgear Motor Protection ircuitbreakers For use in Zone and Zone Zone and Zone For protection of Ex e and Ex d motors Protects cables and plant equipment Adjustable thermal overcurrent trip, phase failure sensitive Fast electromagnetic trip Robust enclosure of glass fibrereinforced polyester resin Optionally Undervoltage trip Shunt short trip Ammeter Auxiliary current switches 0938E00 Series 857 motor protection circuitsbreakers are used where high short circuit currents are to be controlled and to protect both Ex e and Ex dmotors. This switches are suitable to protect the installation basically out a backup fuse. The breakers are actuated by a rotatable grip, which also gives unambiguous switch position identification. 0/Zones &, &

2 Motor Protection ircuitbreakers 0 Selection table out accessories undervoltage trip undervoltage trip urrent adjustment range out ammeter out ammeter ammeter Auxiliary contacts Ordering code Ordering code Ordering code 0. A A out 857/ / A A NO + N 857/ / A A out 857/ / A A NO + N 857/ / A A out 857/ / A A NO + N 857/ / A A out 857/ / A A NO + N 857/ / / A... A out 857/ / A... A NO + N 857/ / /6059 A....6 A out 857/ /060. A....6 A NO + N 857/ / / A....5 A out 857/ / A....5 A NO + N 857/ / / A... 4 A out 857/ / A... 4 A NO + N 857/ / / A A out 857/ / A A NO + N 857/ / / A... 9 A out 857/ / A... 9 A NO + N 857/ /0. 857/609 9 A....5 A out 857/ /0. 9 A....5 A NO + N 857/00 857/. 857/69.5 A.. 6 A out 857/ /0..5 A.. 6 A NO + N 857/00 857/. 6 A... 0 A out 857/ / A... 0 A NO + N 857/ /43. 0 A....5 A out 857/ / A....5 A NO + N 857/ /44. Add. to ordering code Rated voltage for accessories, undervoltage release A 40 V; 50 Hz 857/ V; 50 Hz 857/ V; 50 Hz 857/ V; 50 Hz 857/ V; 50 Hz 857/ V; 50 Hz 857/ V; 50 Hz 857/ /

3 0 Motor Protection ircuitbreakers Technical Data Explosion protection Gas explosion protection E II G EEx de II T. Dust explosion protection E II D IP 65 T80, T95, T30 ertificates Gas explosion protection DMT 0 ATEX E 06 Dust explosion protection LIE 0 ATEX 64 (see type 846/5) Enclosure material Polyester resin, dark grey similar to RAL 704, Surface resistance ( 0 9 ohms; impact strength ) 7 Nm, Material selfextingguishing and flame resistant to IE9, UL 94, ASTM D Mounting position any Degree of protection IP 66 Switch element Main contacts Rated working voltage Rated operating current Switching capacity Type Adjustment range Temperature class T max. 857/ 857/ 3 pole max. 690 V, A, 50 Hz / 60 Hz 0. A....5 A 0. A up to 0.5 A 0.5 A up to.5 A.5 A up to 6 A according to adjustment range (A) T6 T5 T /3 0. A up to.5 A T /4 6 A up to.5 A T V 400 V 500 V 690 V 6.4 kw.4 kw kw Thermal overcurrent trip Electromagnetic fast trip according to adjustment range, adjustment at switch see current adjustment range table Adjustment range Threshold values set at factory 0.6 A A I n.0 A....5 A I n 4.0 A A I n 9.0 A A I n 0/3

4 Motor Protection ircuitbreakers 0 Technical Data Backup fuse Adjustment range from... to 0. A A to.0 A....6 A Highest rated current of the short circuit fuse if I > I S at 30 V A at 400 V A at 440 V A at 500 V A at 690 V A I S gl, am I S gl, am I S gl, am I S gl, am I S gl, am shortcircuit proof, no fuse needed to I = 00 ka.6 A....5 A 40 ka 5 A.5 A A 60 ka 35 A / 0 ka 40 A 40 A 4.0 A A 70 ka 50 A 40 ka 50 A 7 ka 40 A 6.3 A A 50 ka 80 A 30 ka 80 A 5 ka 50 A 9.0 A....5 A 75 ka 80 A 45 ka 80 A 7 ka 80 A 4.5 ka 50 A.5 A A 60 ka 00 A 40 ka 00 A 5 ka 00 A 4 ka 50 A 6.0 A A 55 ka 00 A 35 ka 00 A ka 00 A 3.5 ka 50 A 0.0 A A 50 ka 5 A 30 ka 5 A 0 ka 5 A 3 ka 50 A I S = Breaking capacity of rated operating short circuit I = Projected short circuit current at the installation location Mechanical life 0 5 operations Ambient temperature ( Ta ( 55 Handle Accessories Labeling: olour: 0 I; in 0position can be padlocked in 3 positions Standard: Grip black, collar black Special: Red grip and yellow collar (EMSTOP) Auxiliary contacts Rated working voltage Rated working current Option: None; N + NO; N + NO max. 500 V, A A 5: 4 V /.5 A 30 V / A 400 V / A D 3: 4 V /.5 A 60 V /.5 A 0 V / 0.6 A 0 V / 0.5 A 440 V / A Undervoltage trip Function Pickup voltage Dropout Power consumption Inrush Holding Shunt trip Function Pickup voltage Relative duty cycle Power consumption Inrush Holding When power is lost, circuitbreaker trips; this prevents unwanted restarting, e.g. of a motor ) 0.85 x U c x U c 0.9 VA 0.9 VA For remote tripping of circuitbreakers by applying actuating voltage ) 0.85 x U c Switches itself off automatically via integrated contact switch 4 60 V: 4,4 90 VA; 0 40 V: 3 6 VA; 0 45 V: 7,6 6,3 VA Switches itself off automatically via integrated contact switch 0/4

5 0 Motor Protection ircuitbreakers Technical Data Ammeter Version Type 8405; dimensions 64 mm x 64 mm Movement Moving iron: class.5; direct measuring; overload scale : Measuring range Overload capacity able entries Standard Dependent on switch setting range x I e 5 s; 50 x I e s Type Accessories ) 86 able 890 Stopping plugs M 5 x.5 M 3 x.5 M 5 x.5 857/ out 857/ out 857/3; 857/4 out 857/5; 857/ A out A out M 5 x.5 for cables d mm... 7 mm M 3 x.5 for cables d 0 mm... 8 mm Special onnections ) Accessories: Auxiliary contacts, undervoltage trip, shunt trip on request 857/ 857/ 857/3 857/4 857/5 857/6 directly to fitted components Main contacts Auxiliary contacts on terminals.5 mm... 6 mm flexible.5 mm... 0 mm solid 0.75 mm...,5 mm flexible 0.75 mm...,5 mm solid 0.5 mm... 6 mm flexible 0.5 mm... 0 mm solid Please note: ompare cable diameter cable diameter range of cable entries 0/5

6 Motor Protection ircuitbreakers 0 Adjustment range of motor protection switch Trip time of motor protection switch at times the setting current, 3pin, from cold state. A... A s s s s s s E0 05E0 0/6

7 0 Motor Protection ircuitbreakers 05E0 053E0 054E0 055E0 0/7

8 Motor Protection ircuitbreakers 0 056E0 057E0 058E0 059E0 0/8

9 0 Motor Protection ircuitbreakers 060E0 06E0 06E0 063E0 0/9

10 Motor Protection ircuitbreakers 0 Dimension drawings (all dimensions in mm) subject to alterations 04793E E E00 857/ 857/ 857/3; 857/4 857/5; 857/ E00 able entries Type Accessories able glands 86 Stopping plugs 890 M 5 x.5 M 3 x.5 M 5 x.5 857/ out 857/ out 857/3; 857/4 out 857/5; 857/6 0. A....5 A out.5 A....5 A out A, B, A, B, A, B, We reserve the right to make alterations to the technical data, weights, dimensions, designs and products available out notice. The illustrations cannot be considered binding. 0/0