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28 – 3
S23
Signaling switch for 2nd shunt trip
S24
Bell Alarm signaling switch
S3
Contact position-driven auxiliary switch
S30
Signaling switch for disconnected position (TOC)
S31
Signaling switch for test position (TOC)
S32
Signaling switch for test position (TOC)
S33
Signaling switch for connected position (TOC)
S34
Signaling switch for connected position (TOC)
S35
Signaling switch for connected position (TOC)
S4
Contact position-driven auxiliary switch
S40
c
signaling switch for "ready-to-close"
S41
c
signaling switch for "closing spring charged"
S43
c
signaling switch for 2nd shunt trip
S44
c
signaling switch for "main contacts OPEN / CLOSED"
S45
c
tripped signaling switch
S46
c
signaling switch for connected position
S47
c
signaling switch for test position
S48
c
signaling switch for disconnected position
S50 ... S53
MOC (external auxiliary switches)
S-tripping
Short-time delayed tripping
SIGUT
Siemens trademark for aux. termination technique
ST
Shunt trip
T.U. ERROR
Trip unit error
TEST
Test position
t
g
Delay time for G-tripping
TOC
Truck operated cell switch (S30 … S35)
t
R
Delay time for L-tripping (defined at 6 x I
R
)
TRIP G
Trip cause was ground fault
TRIP I
Trip cause was short-circuit (instantaneous)
TRIP L
Trip cause was overload
TRIP N
Trip cause was neutral pole overload
TRIP S
Trip cause was short-circuit (short-time delayed)
t
sd
Delay time for S-tripping
t
x
Delay time for load monitoring
U
c
Rated control voltage
U
e
Rated operational voltage
U
i
Rated insulation voltage
U
Imp
Rated impulse withstand voltage
UL
Underwriters Laboratories Inc.
UVR
Undervoltage release (instantaneous)
UVR td
Undervoltage release (delayed)
VT
Voltage transformer
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: ......