MAIN CHARACTERISTICS range of product COMPACT range COMPACT product name COMPACT NB400N device short name COMPACT NB400N product or component type CIRCUIT BREAKER device application DISTRIBUTION poles description 3P protected poles description 3T network type AC network frequency 50 60 HZ [In] rated current 400 A 50 DC [Ui] rated insulation voltage 690 V AC 5060 HZ CONFORMING TO IEC 60947-2 [Uimp] rated impulse withstand voltage 6 KV CONFORMING TO IEC 60947-2 [Ue] rated operational voltage 500 V AC 5060 HZ CONFORMING TO IEC 60947-2 breaking capacity code N breaking capacity 15 KA AT 480 V AC 5060 HZ CONFORMING TO NEMA AB1 HIC [Ics] rated service breaking capacity ICS 15 KA 220240 V AC 5060 HZ CONFORMING TO IEC 60947-2 suitability for isolation YES CONFORMING TO IEC 60947-2 utilisation category A trip unit name TM-D trip unit technology THERMAL-MAGNETIC trip unit rating 400 A protection type LONG TIME OVERLOAD PROTECTION pollution degree 3 CONFORMING TO IEC 60529 COMPLEMETARY CHARACTERISTICS control type TOGGLE mounting mode FIXED mounting support BACKPLATE upside connection FRONT downside connection FRONT mechanical durability 5000 CYCLES electrical durability category A : 1000 cycles 440 V AC 50/60 Hz conforming to IEC 60947-2 connection pitch 45 MM local signalling POSITIVE CONTACT INDICATION height 255 MM width 140 MM depth 110 MM compatibility code NS400