CTM5HU Series AC Moulded Case Circuit Breaker

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  • CTM5HU Series AC Moulded Case Circuit Breaker
  • CTM5HU Series AC Moulded Case Circuit Breaker
  • CTM5HU Series AC Moulded Case Circuit Breaker
  • CTM5HU Series AC Moulded Case Circuit Breaker
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Model CTM5HU-250 CTM5HU-320 CTM5HU-400 CTM5HU-630
Frame grade rated current Inm(A) 250  320  400  630 
Rated current(adjustable)In(A) 63,80,100,125,140,
160,180,200,225,250
280,300,315,320 250,280,315
320,350,400
450,500,630
Rated working voltage Ue(V) AC400,690,800,1000,1140
Rated insulation voltage Ui(V) 1250 
Rated impulse withstand voltage Uimp(kV) 12 
Power frequency withstand voltage(V/1min) 3500 
Pole 3P
Breaking capacity M H M H M H M H
Rated limit short-circuit
breaking capacity lcu(kA)
AC400V 70  85  70  85  70  85  70  85 
AC690V 50  65  50  65  50  65  50  65 
AC800V 37  50  37  50  37  50  37  50 
AC1000V 15  20  15  20  15  20  15  20 
AC1140V 10  15  10  15  10  15  10  15 
Rated running short-circuit breaking capacity Ics(kA) Ics=100%lcu
Isolation function With isolation function

Model W W1 L L1 L2 L3   L4 H H1 H2 A B d
CTM5HU-250 116(3P) 35  200  333  179  67    61  107.5  127.4  26  152  35 
CTM5HU-320
CTM5HU-400 150(3P) 48  258  532  224  64    105  122  153  38  224  48 
CTM5HU-630