BM400-AF Molded case circuit breakerDetailed product description：

Characteristics of BM400-AF molded case circuit breaker:

Shell current: 400A
Breaking level: HE, RE, UE
Compliant with standard: GB14048.2 IEC60947-2
Overload long delay current setting value Ir: 160/180/200/240/280/320/360/380/400A
Long delay action time Tr (i.e. 2Ir action time): 20/40/60/80/160 seconds
Short circuit short delay action current Is: 2/3/4/5/6/7/8/10s
Short circuit short delay action time Ts: 0.1/0.2/0.3/0.4s
Short circuit instantaneous current Ii: 1.5/2/4/6/8/10/11In
Rated voltage: AC230V/400V
Rated insulation voltage: AC690V
Number of poles: 3, 4 poles
Short circuit breaking capacity:
Icu: BM400-HE/ BM400-RE/ BM400-UE
AC230V: 85KA/ 100KA/ 125KA
AC400V: 50KA/ 70KA/ 85KA
Ics=50%Icu