20 30 40 50 60 70 80 9010
.2
.3
.4
.5
.6
.7
.8
.9
200100
2
1
Available Short Circuit Current (RMS Symmetrical Amperes x 10
3
)
Typical* Let-Through I
2
t (Amperes
2
Seconds x 10
6
)
*
Based on typical values obtained throughout the circuit breaker development and UL test programs.
I
2
t
D
240 V
J
D
D
G
G
G
J
J
L
R
480 V
L
R
600 V
L
R
ELECTRONIC MOLDED CASE CIRCUIT BREAKERS
POWERPACT™ J–FRAME CURRENT LIMITING CIRCUIT BREAKERS
250 A FRAME AT 240, 480 AND 600 V, 3Ø
150—250 A
LET-THROUGH CURRENT l
2
t
Drawing No. 48095-050-08
April 2012
Rev. 01
© 2012 Schneider Electric all rights reserved