
Compact® NSF and NSJ 150 to 600 A Circuit Breakers
Section 
LET-THROUGH  CURVES AT 480 V
Maximum Peak
Let-through 
Current (Amperes)
| 06153222 3 | programs. | 
| ) | Basedon maximum values obtained throughout the circuit breaker development and UL test | 
| Maximum (*) Peak  | |
| 
 | (*) | 
200
100
80
70
60
50
40
30
20
10
8
7
6
5
4
L
H
 NSJ400/600
 NSJ400/600
N

 NSF250
 NSF250
NSF150**
| 2 | 3 | 4 | 6 | 10 | 20 | 30 | 40 | 60 | 100 | 200 | 300 | 
Available Short Circuit Current (RMS Symmetrical Amperes x 103)
**4P OSN Compact® NSF125/250N and NSF 150/250N Ratings Are Same As NSF250
Maximum Let- through I2t (Amperes2 Seconds)
| 06153223 | programs. | 
| Seconds) | and UL test | 
2
7
10
5
NH L
| 2 | breakerdevelopment | 
| (Amperes | |
| t | 
 | 
| 2 | 
 | 
| Maximum (*) Let | maximum values obtained | 
| 
 | (*) Based on | 
3
2
6
10
5
3
2
5
10
5
3
2
N
NSJ400/600
H
NSF250
NSF150**
| 2 | 3 | 4 | 6 | 10 | 20 | 30 | 40 | 60 | 100 | 200 | 300 | 
Available Short Circuit Current (RMS Symmetrical Amperes x 103)
**4P OSN Compact® NSF125/250N and NSF 150/250N Ratings Are Same As NSF250
| ©  | 63 | 
