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I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Circuit breaker frame accessory label . . . . . . . . . . . . . . . 2-1
Circuit breaker frame type label . . . . . . . . . . . . . . . . . . . . 2-1
Frame designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Trip unit designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Rating Plug label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Cradle type label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
. . . . . . . . . . . . . . . . . . . . . . . . . 3-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Lifting with a crane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Lifting with a Lifting Bar Assembly . . . . . . . . . . . . . . . . . . 4-3
Lifting bar assembly (3-pole) . . . . . . . . . . . . . . . . . . . . 4-3
Lifting the circuit breaker . . . . . . . . . . . . . . . . . . . . . . . 4-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Mounting on horizontal surface -
Mounting tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Cubicle and ventilation . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Main terminal connections . . . . . . . . . . . . . . . . . . . . . . . 5-10
Cradle connections . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Horizontal connections for fixed mount breakers . . . . 5-10
Vertical connections for fixed mount circuit breakers . 5-11
Front connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Wire connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Bus connections to the cradle . . . . . . . . . . . . . . . . . . . . 5-26
Secondary wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
Breaker Secondary Disconnects . . . . . . . . . . . . . . . . 5-28
Cradle Secondary Disconnect Blocks . . . . . . . . . . . . 5-29
Secondary disconnect terminal blocks . . . . . . . . . . . . 5-30
Wiring in cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32
Catalog numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Preparation of draw-out circuit breaker . . . . . . . . . . . . . . 6-1
Inserting the circuit breaker into the cradle . . . . . . . . . 6-1
Positions of the circuit breaker in the cradle . . . . . . . . . 6-2
Unlocking the racking handle /
withdrawing the racking handle . . . . . . . . . . . . . . . . . . 6-3
Racking circuit breaker into connected position . . . . . . 6-3
Inserting racking handle . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Charge the closing spring . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Check list for commissioning . . . . . . . . . . . . . . . . . . . . . . 6-6
Closing the circuit breaker . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Opening the circuit breaker . . . . . . . . . . . . . . . . . . . . . . . 6-7
Tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Reclosing a circuit breaker tripped by the trip unit . . . . . . 6-9
Removing from service . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Frame sizes / dimension drawings
. . . . . . . . . . . . . . . . 7-1
Frame size I, fixed-mounted version . . . . . . . . . . . . . . . . . 7-1
Frame size II, fixed-mounted version . . . . . . . . . . . . . . . . 7-6
Frame size II, 3000 A . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Frame size III, fixed-mounted version . . . . . . . . . . . . . . . 7-10
Door cut-outs, fixed-mounted circuit breaker . . . . . . . . . 7-14
Frame size I, draw-out version . . . . . . . . . . . . . . . . . . . . 7-16
Frame size II, draw-out version . . . . . . . . . . . . . . . . . . . . 7-21
Frame size III, draw-out version . . . . . . . . . . . . . . . . . . . 7-25
Door cut-outs for draw-out circuit breakers . . . . . . . . . . . 7-28
Frame size II / III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29
External sensor for neutral conductor . . . . . . . . . . . . . . . 7-30
Further dimension drawings . . . . . . . . . . . . . . . . . . . . . . 7-32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Auxiliary switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Shunt Trip, Undervoltage Trip / Electrical closing lockout . 8-4
Closing Coil / Electrical CLOSE . . . . . . . . . . . . . . . . . . . . 8-5
Motor-operated mechanism . . . . . . . . . . . . . . . . . . . . . . . 8-6
Remote Bell Alarm Reset . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Trip unit circuitry for ETU745-776 . . . . . . . . . . . . . . . . . . . 8-7
With Breaker Status Sensor (BSS)
and metering module . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Metering module only . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Breaker Status Sensor (BSS) only . . . . . . . . . . . . . . . . 8-9
. . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Trip units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Overview of function . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Trip unit ETU745 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Trip unit ETU776 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
Protective functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
ETU displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-17
Rating Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-43
Ground-fault protection modules . . . . . . . . . . . . . . . . . 9-44
Replace the trip unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-49
Internal trip unit self-test on
the overcurrent tripping function . . . . . . . . . . . . . . . . . 9-51
Sealing and locking device . . . . . . . . . . . . . . . . . . . . . 9-53
CubicleBUS Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-54
System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . 9-54
Internal modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-55
External
CublicleBUS
modules . . . . . . . . . . . . . . . . . 9-83
External sensor for neutral conductor . . . . . . . . . . . . . 9-97
External voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . . 9-98
Handheld test device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-99
View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-99
Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-99
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-100
Voltage supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-100
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-100
Finishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-103
Catalog numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-103
Contents
Содержание UL 489
Страница 36: ...5 21 Frame size II 3000 A Frame size III 1 Holes 14 mm 0720 1 0721_nu ...
Страница 63: ...7 2 Horizontal connectors 0733_nu top view ...
Страница 64: ...7 3 Rear vertical connectors 0734_nu top view rear view ...
Страница 65: ...7 4 Front connectors 0736_nu front view top view ...
Страница 66: ...7 5 Front connectors and pressure wire terminals 0737_nu top view front view ...
Страница 67: ...7 6 7 2 Frame size II fixed mounted version 0494 3_nu ...
Страница 68: ...7 7 Class C always 0494 5_nu top view rear view ...
Страница 69: ...7 8 2500 0738_nu LH side view front view ...
Страница 71: ...7 10 7 4 Frame size III fixed mounted version 0495 1_nu LH side view ...
Страница 72: ...7 11 0495 2_nu top view top view ...
Страница 73: ...7 12 0495 3_nu top view rear view ...
Страница 75: ...7 14 7 5 Door cut outs fixed mounted circuit breaker Frame size I 0735_nu ...
Страница 76: ...7 15 Frame size II III 0496_nu ...
Страница 77: ...7 16 7 6 Frame size I draw out version 0745_nu ...
Страница 78: ...7 17 0746_nu rear view top view ...
Страница 79: ...7 18 0747_nu bottom view ...
Страница 80: ...7 19 0748_nu ...
Страница 81: ...7 20 0749_nu ...
Страница 82: ...7 21 7 7 Frame size II draw out version 0490 1_ul ...
Страница 86: ...7 25 7 8 Frame size III draw out version ...
Страница 87: ...7 26 ...
Страница 88: ...7 27 ...
Страница 89: ...7 28 7 9 Door cut outs for draw out circuit breakers Frame size I 0750_nu ...
Страница 91: ...7 30 7 11 External sensor for neutral conductor WLNCT2 ...
Страница 92: ...7 31 WLNCT3 ...
Страница 107: ...9 5 I tripping Ground fault tripping ...
Страница 256: ...15 12 Installing FS II and FS III 1 Socket head cap screw M5 with washer and nut 1 2 3 4 6 5 7 8 Size 4 5 Nm 45 lb in ...
Страница 307: ...22 2 Installing the door sealing frame Not for use with fuse carriages Catalog No Door sealing frame WLDSF 1 2 3 ...
Страница 351: ......