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Eaton / Moeller Series

NZMB2-S250-CNA102478

In Stock

250A, 3P, breaker, thermomagnetic, UL/CSA/IEC

The Eaton NZMB2-S250-CNA is a 250A, 3-pole molded case circuit breaker with thermomagnetic release, designed for short-circuit protection in motor and feeder circuits. Built to meet UL, CSA, and IEC standards, it features a non-adjustable short-circuit release (8–10× In) and supports fixed mounting. With a rated operational voltage up to 440 V AC and insulation voltage of 690 V, it offers robust performance in industrial applications. The device includes screw terminals and supports multiple conductor types. Its rugged design includes IP20 protection and resistance to shock, UV, and corrosion.

Country of Origin: DE

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  • Product Specifications
  • Technical Specifications
Brand Eaton
Model NZMB2-S250-CNA
Catalog Number 102478
Product Type Circuit Breaker
Amperage 250A
Poles 3
Trip Type Thermomagnetic
Operator Rocker Lever
Mounting Fixed
Voltage Rating 440 V AC
Insulation Voltage (Ui) 690 V
Impulse Withstand Voltage (Uimp) 8 kV (Main Contacts)
Short-Circuit Release Setting 8–10× In
Short-Circuit Breaking Capacity (Icu @ 400V) 25 kA
Short-Circuit Making Capacity (Icm @ 400V) 53 kA
Connection Type Screw Terminal
Degree of Protection IP20
Certifications UL 489, CSA C22.2 No. 5-09, IEC 60947-2, CE
Ambient Operating Temperature -25 °C to +70 °C

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