ABB 2CDS634031R0504 BMS314C50 4P 50A 3kA 400V DIN Rail Miniature Circuit Breaker (MCB)

The ABB BMS314C50 miniature circuit breaker (MCB), SKU 2CDS634031R0504, is a 4-pole, 50 A device from the Basic M BMS series rated at 400 V AC with a breaking capacity of 3 kA, designed for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial distribution boards. Mounted on standard DIN rail, the BMS314C50 complies with IEC 60898-1 and IEC 60947-2, making it a trusted choice for engineers and procurement professionals specifying protection devices for control panels and final 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 — circuit breakers for industrial applications
• IEC/EN 60664-1: Insulation coordination for equipment within low-voltage systems
• IEC/EN 60664: Insulation coordination for low-voltage equipment
• IEC 60898: General series standard for circuit breakers used in household and similar installations
• IEC 60947: General series standard for low-voltage switchgear and controlgear
• EN 60664: European harmonised insulation coordination standard
• RoHS (EU Directive 2011/65/EU & Amendment 2015/863): Restriction of hazardous substances in electrical and electronic equipment
• REACH: EU regulation on registration, evaluation, authorisation and restriction of chemicals
• WEEE: EU Waste Electrical and Electronic Equipment Directive — compliant for responsible end-of-life disposal