SFM3 Series Molded Case Circuit Breaker

Introduction

SFM3 series molded case circuit breaker (hereinafter referred to as “circuit breaker”) is suitable for infrequent transfer and infrequent starting of motor in circuits with AC 50/60Hz, rated insulation voltage up to 1,000V, rated working voltage up to 415/690V and rated working current up to 800A (Inm≤400A and below). The circuit breaker has the overload and short-circuit protection functions, and can protect the circuit and power equipment from damage. The circuit breaker has the features of small dimension, high breaking capacity, short arc, vibration resistance etc.