13
Molded Case Circuit Breakers
BW0 series
Internal accessories
Internal accessories 100 to 250AF
The number of tasks can be greatly reduced as all the internal
accessories are cassette-type user-installed.
Auxiliary switch and alarm switch
These devices indicate the MCCB's operation status
electrically.
Auxiliary switch (W) indicates the ON/OFF status of MCCB.
Alarm switch (K) indicates the trip status of MCCB. An MCCB
trips when an overload occurs or a short-circuit current flows
through the MCCB. Both the auxiliary switch and alarm switch
can be installed either on the right or left side of MCCB body.
All auxiliary switches (W) and alarm switches (K) are
electrically pre-wired with wires of 1 mm
2
, 500 mm long.
The auxiliary switch, alarm switch and auxiliary plus alarm
switch have almost the same appearance.
Combination of MCCB
Frame
MCCB Type
Type
Auxiliary switch (W)
Alarm switch (K)
Auxiliary
alarm switch (W+K)
100A
BW103E0
BW102S0, BW103S0
BW9W1SB0
BW9K1SB0
BW9WKSB0
160A
BW162E0, BW163E0
BW162J0, BW163J0
BW9W1SG0
BW9K1SG0
BW9WKSG0
BW162S0, BW163S0
250A
BW252E0, BW253E0
BW252J0, BW253J0
BW252S0, BW253S0
Rating of auxiliary switches (W) and alarm switches (K)
Type number
AC
DC
Minimum load current
Voltage (V)
Make/Break current (A)
Voltage (V)
Make/Break current (A)
AC12
AC15
DC12
DC14
BW9W1SB0
24
5
5
24
4
3
5VDC 160mA
BW9K1SB0
48
5
5
48
2.5
1
30VDC 30mA
BW9WKSB0
125
5
3
125
0.4
0.4
250
3
2
250
0.2
0.2
BW9W1SG0
24
5
5
24
4
3
BW9K1SG0
48
5
5
48
2.5
1
BW9WKSG0
125
5
3
125
0.4
0.4
250
3
2
250
0.2
0.2
Operation of auxiliary switches(W) and alarm switches(K)
11
14
12
91
94
92
11
14
12
91
94
92
ON
OFF
Trip
Handle position
Accessory
Auxiliary switch (W)
Alarm switch (K)
Aux Alarm switch (W+K)
Содержание BW0 Series
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