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9 – 2
9.1.2
Trip unit ETU745
Overview
1) The trip cause is stored internally for at least two days if the trip unit has been activated for at least 10 min before tripping
(for unlimited time with auxiliary power).
2) Changeover switch only accessible with removed module.
NOTICE
Electrostatic Discharge
Trip unit may become inoperative.
Before the protective cover is removed, ensure that the equipment to be connected, and also the operating
personnel, are at the same potential.
Option:
Ground-fault module
Mechanical RESET
for Bell Alarm
Rating Plug
Scroll up
Indications
COMMUNICATIONS
EXTENDED
Rotary coding switch
instantaneous pickup setting
Rotary coding switch ground-fault
pickup setting
Rotary coding switch ground-fault
alarm setting
Query button
Test button
Option:
Reset Lockout
prevents accidental resetting of the lock-out
mechanism after a trip
Option
: Alphanumeric display
Thermal memory On/Off
Neutral conductor protection On/Off
Neutral conductor overload setting
Overload trip curve mode I
2
t / I
4
t
Rotary coding switch long-time delay setting
Rotary coding switch short-time delay setting
Trip cause indicator
1)
Indications
Ground-fault alarm
Ground-fault tripped
Rotary coding switch ground-fault time
delay setting t
g
/ I
2
t
g
Clear button
Test connector
Trip unit error indicator
Changeover switch ground-fault detection mode
2)
Rotary coding switch long-time
delay pickup setting
Rotary coding switch short-time
delay pickup setting
Scroll down
Trip unit
Overcurrent alarm
activated
Sealing eyelet
and remote trip
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: ......