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9 – 43
9.1.7
Rating Plug
The Rating Plug defines the rated current I
n
within a certain range for a given circuit breaker frame size.
If a rating plug with a higher current than the maximum permissible circuit breaker rated continuous current is plugged in, the electronic
system of the trip unit recognizes this error and signals it with a flashing T.U. ERROR indicator.
The trip unit ignores the rated current value specified by the incorrect Rating Plug and sets it to the value of the smallest Rating Plug for the
frame size of the relevant circuit breaker.
The same happens if a circuit breaker with frame size III is equipped with a Rating Plug smaller than 800 A.
All set protection parameters are adjusted accordingly.
It is not permitted to operate the trip unit without a Rating Plug. If a circuit breaker is nevertheless started up without a Rating Plug,
the T.U. ERROR indicator will light up and the trip unit settings will default to the lowest possible settings for that frame rating.
Frame size
Rating Plug
Catalog No.
I
II
III
q
q
200 A
WLRP200
q
q
225 A
WLRP225
q
q
250 A
WLRP250
q
q
300 A
WLRP300
q
q
315 A
WLRP315
q
q
350 A
WLRP350
q
q
400 A
WLRP400
q
q
450 A
WLRP450
q
q
500 A
WLRP500
q
q
600 A
WLRP600
q
q
630 A
WLRP630
q
q
700 A
WLRP700
q
q
q
800 A
WLRP800
q
q
q
1000 A
WLRP1000
q
q
q
1200 A
WLRP1200
q
q
q
1250 A
WLRP1250
q
q
q
1600 A
WLRP1600
q
q
q
2000 A
WLRP2000
q
q
2500 A
WLRP2500
q
q
3000 A
WLRP3000
q
3200 A
WLRP3200
q
4000 A
WLRP4000
q
5000 A
WLRP5000
Summary of Contents for UL 489
Page 36: ...5 21 Frame size II 3000 A Frame size III 1 Holes 14 mm 0720 1 0721_nu ...
Page 63: ...7 2 Horizontal connectors 0733_nu top view ...
Page 64: ...7 3 Rear vertical connectors 0734_nu top view rear view ...
Page 65: ...7 4 Front connectors 0736_nu front view top view ...
Page 66: ...7 5 Front connectors and pressure wire terminals 0737_nu top view front view ...
Page 67: ...7 6 7 2 Frame size II fixed mounted version 0494 3_nu ...
Page 68: ...7 7 Class C always 0494 5_nu top view rear view ...
Page 69: ...7 8 2500 0738_nu LH side view front view ...
Page 71: ...7 10 7 4 Frame size III fixed mounted version 0495 1_nu LH side view ...
Page 72: ...7 11 0495 2_nu top view top view ...
Page 73: ...7 12 0495 3_nu top view rear view ...
Page 75: ...7 14 7 5 Door cut outs fixed mounted circuit breaker Frame size I 0735_nu ...
Page 76: ...7 15 Frame size II III 0496_nu ...
Page 77: ...7 16 7 6 Frame size I draw out version 0745_nu ...
Page 78: ...7 17 0746_nu rear view top view ...
Page 79: ...7 18 0747_nu bottom view ...
Page 80: ...7 19 0748_nu ...
Page 81: ...7 20 0749_nu ...
Page 82: ...7 21 7 7 Frame size II draw out version 0490 1_ul ...
Page 86: ...7 25 7 8 Frame size III draw out version ...
Page 87: ...7 26 ...
Page 88: ...7 27 ...
Page 89: ...7 28 7 9 Door cut outs for draw out circuit breakers Frame size I 0750_nu ...
Page 91: ...7 30 7 11 External sensor for neutral conductor WLNCT2 ...
Page 92: ...7 31 WLNCT3 ...
Page 107: ...9 5 I tripping Ground fault tripping ...
Page 351: ......