HKKM1 Moulded Case Circuit Breaker Series

It is suitable for circuitries of AC 50/60HZ, rated insulation voltage up to 800V, (HKKM1-63 is 500V), rated working voltage of 400/690V, (HKKM1-63 is 400V) and rated working current up to 1250A

Technical Parameters :

Frame size rated current Inm: 400A
Rated current In: 225,250,315,350,400A
Class of rated ultimate short-circuit breaking capacity: L ,H,M
Pole number (P) : 3, 4
Rated ultimate short-circuit breaking capacity Icu (KA): AC400, 50,100,65
Rated service short-circuit breaking capacity Ics (KA): AC400/35, 65, 42
Rated operating voltage Ue: AC 400V
Rated insulation voltage Ui: 800V
Rated impulse withstand voltage Uimp: 8000V
Flashover distance: ≤50mm
Applicability: isolation

How to order

1, Please let us know what kind of model, current and pole and so on
2, If you have any question, pls don't hesitate contact us