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HAVELLS
MCB/MCCB Discrimination table
PowerSafe Device
GH Frame – 25kA MCCB
AAN Frame – 25kA MCCB
Circuit Breaker Rating (A)
16 20 32 40 50 63 80 100 125 160 25 32 40 50 63
B Curve 6kA
and 10kA MCB
2
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
4
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
6
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
10
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
13
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
16
T
T
T
T
T
T
T
T
T
T
T
T
T
20
T
T
T
T
T
T
T
T
T
T
T
T
25
T
T
T
T
T
T
T
T
T
T
T
32
T
T
T
T
T
T
T
T
T
40
T
T
T
T
T
T
T
50
T
T
T
T
T
63
T
T
T
C Curve 6kA
and 10kA MCB
2
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
4
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
6
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
10
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
13
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
16
T
T
T
T
T
T
T
T
T
T
T
T
T
20
T
T
T
T
T
T
T
T
T
T
T
T
25
T
T
T
T
T
T
T
T
T
T
T
32
T
T
T
T
T
T
T
T
T
40
T
T
T
T
T
T
T
50
T
T
T
T
T
63
T
T
T
25kA GH
Frame MCCB
16
T
T
T
T
T
T
T
20
T
T
T
T
T
T
T
25
T
T
T
T
T
T
T
32
T
T
T
T
T
T
T
40
10kA 10kA T
T
T
50
10kA 10kA T
T
T
63
T
T
T
80
T
T
T
100
125
160
25kA – AAN
Frame MCCB
25
7.5kA 7.5kA 7.5kA 8kA 8kA
32
7.5kA 7.5kA 7.5kA 8kA 8kA
40
50
63
80
100
125
160
200
250
35kA – FN
Frame MCCB
125
160
200
250