MAIN CHARACTERISTICS range COMPACT range of product NS630B..1600 product name COMPACT NS product or component type BASIC FRAME device short name COMPACT NS1250H device application DISTRIBUTION circuit breaker name COMPACT NS1250H poles description 4P neutral position LEFT network type AC breaking capacity code H suitability for isolation YES CONFORMING TO IEC 60947-2 utilisation category B COMPLEMETARY CHARACTERISTICS network frequency 50 60 HZ control type ROTARY HANDLE mounting mode FIXED mounting support BACKPLATE upside connection FRONT downside connection FRONT (In) rated current up to 65 °C 1250 A 50 DC [Ui] rated insulation voltage 800 V AC 5060 HZ CONFORMING TO IEC 60947-2 [Uimp] rated impulse withstand voltage 8 KV CONFORMING TO IEC 60947-2 [Ue] rated operational voltage 690 V AC 5060 HZ CONFORMING TO IEC 60947-2 circuit breaker CT rating 1250 A breaking capacity ICU 85 KA AT 220240 V AC 5060 HZ CONFORMING TO IEC 60947-2 [Ics] rated service breaking capacity ICS 31.5 KA 660690 V AC 5060 HZ MANUAL OPERATION CONFORMING TO IEC 60947-2 protection type WITHOUT PROTECTION mechanical durability 10000 CYCLES CONFORMING TO IEC 60947-2 electrical durability 2000 CYCLES 690 V AC 5060 HZ IN CONFORMING TO IEC 60947-2 connection pitch 70 MM [Icw] rated short-time withstand current 19.2 KA 1 S CONFORMING TO IEC 60947-2 integral instant protection 40 KA height 327 MM width 280 MM depth 147 MM compatibility code NS1250