Specifications

53
COMPACT
®
NS circuit breaker
E28291
E28290
Maximum let-through I
2
t (Amperes
2
Seconds)
Maximum peak let-through current (Amperes)
COMPACT
®
NS circuit breaker: supplementary technical information
Let-through curves at 600 V
2 3 4 6 10 20 30 40 60 100 200 300
6
4
10
20
40
100
200
30
5
7
8
50
60
70
80
Maximum (*) Peak Let-Through Current (Amperes x 10
3
)
(*) Based on maximum values obtained throughout the circuit breaker development and UL test programs.
NSJ400/600
Available Short Circuit Current (RMS Symmetrical Amperes x 10
3
)
N
H/L
NSF150
NSF250
H
N
2 3 4 6 10 20 30 40 60 100 200 300
2
3
5
2
3
5
2
3
5
2
10
5
10
6
10
7
NSJ400/600
Maximum (*) Let-Through I
2
t (Amperes
2
Seconds)
(*) Based on maximum values obtained throughout the circuit breaker development and UL test programs.
Available Short Circuit Current (RMS Symmetrical Amperes x 10
3
)
N
H/L
H
N
NSF250
NSF150