ABB 2CDS632031R0254 BMS312C25 2P 25A 3kA C-Curve 400V AC DIN Rail Miniature Circuit Breaker

The ABB BMS312C25 miniature circuit breaker (SKU: 2CDS632031R0254) is a 2-pole, 25A, C-curve MCB from the Basic M BMS series, rated at 400V AC with a breaking capacity of 3kA, designed for reliable overcurrent and short-circuit protection in residential and light commercial distribution boards. Engineered to IEC 60898-1 and IEC 60947-2 standards, the BMS312C25 mounts on standard DIN rail and delivers consistent, dependable protection in compact control panel installations.

Technical Specifications

Certifications & Standards

• IEC 60898-1: International standard for circuit breakers for overcurrent protection in household and similar installations
• IEC 60947-2: International standard for low-voltage switchgear and controlgear — circuit breakers
• IEC/EN 60664-1: Insulation coordination for equipment within low-voltage systems
• IEC/EN 60664: Insulation coordination standard series for low-voltage equipment
• IEC 60898: General circuit breaker product standard compliance
• IEC 60947: Low-voltage switchgear and controlgear general rules compliance
• EN 60664: European harmonised insulation coordination standard
• CB Certificate (IEC 60898): IECEE CB scheme certification for international market acceptance
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Compliant with EU REACH Regulation (EC) No 1907/2006 on chemical substances
• WEEE: Compliant with EU Waste Electrical and Electronic Equipment Directive 2012/19/EU

Applications & Use Cases

• Overcurrent and short-circuit protection in residential distribution boards
• Light commercial and industrial control panel protection
• Final circuit protection in building electrical installations
• DIN rail mounted switchboard applications up to 400V AC
• Replacement or upgrade of legacy 2-pole MCBs in existing installations