ABB 2CDS633031R0504 BMS313C50 3P 50A 3kA Curve C 400V AC Miniature Circuit Breaker

The ABB BMS313C50 miniature circuit breaker (MCB), SKU 2CDS633031R0504, is a 3-pole, 50A, Curve C device rated at 400V AC with a breaking capacity of 3kA, designed for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial control panels. Part of the ABB Basic M BMS series, the BMS313C50 combines compact dimensions of 52.5mm × 88mm × 69mm with a weight of just 279g, making it an efficient and space-saving solution for distribution boards and motor branch circuits.

Technical Specifications

Certifications & Standards

• IEC 60898-1: Miniature circuit breakers for overcurrent protection in household and similar installations
• IEC 60947-2: Low-voltage switchgear and controlgear — circuit breakers for industrial applications
• IEC/EN 60664-1: Insulation coordination for equipment within low-voltage systems
• CB Certificate (IEC 60898): International CB scheme certification for circuit breakers
• IEC/EN 60664: Insulation coordination standard compliance
• IEC 60947: Low-voltage switchgear and controlgear general requirements
• RoHS (EU Directive 2011/65/EU & Amendment 2015/863): Restriction of hazardous substances in electrical and electronic equipment
• REACH: Compliance with EU regulation on chemicals (ECHA)
• WEEE: Waste electrical and electronic equipment directive compliance