circuit breaker Masterpact NT12N - 1250 A - 3 poles - D - w/o trip unit - UL 489Show more characteristics >
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Main range of productMasterpact NT product or component typeBasic frame device short nameMasterpact NT12 circuit breaker nameMasterpact NT12N poles description3P neutral positionLeft network typeAC breaking capacity codeN Complementary network frequency50/60 Hz control typePush-button mounting modeDrawout [In] rated current1200 A [Ue] rated operational voltage240...600 V AC 50/60 Hz breaking capacity35 kA at 600 V AC 50/60 Hz conforming to IEC 60947-250 kA at 240 V AC 50/60 Hz conforming to IEC 60947-250 kA at 480 V AC 50/60 Hz conforming to IEC 60947-2 protection typeWithout protection connection pitch70 mm [Icw] rated short-time withstand current35 kA ( 0.5 s ) integral instant protection40 kA maximum breaking time30 ms closing response time<= 50 ms height322 mm width288 mm depth276.5 mm Environment standardsUL 439 IP degree of protectionIP30 Contractual warranty Warranty period18 months
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