ABB 2CDS631031R0254 BMS311C25 1P 25A 3kA C-Curve Miniature Circuit Breaker

The ABB BMS311C25 (SKU: 2CDS631031R0254) is a 1-pole 25A C-curve miniature circuit breaker from the Basic M BMS series, designed to provide reliable overcurrent and short-circuit protection in residential, commercial, and light industrial control panel applications. Rated at 230 V AC per IEC 60898-1 and 440 V per IEC 60947-2, the BMS311C25 delivers a breaking capacity of 3 kA at 230/400 V AC and dissipates just 3.2 W per pole for efficient thermal management.

Technical Specifications

Certifications & Standards

• IEC 60898-1: Standard for circuit breakers for overcurrent protection in household and similar installations
• IEC 60947-2: 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 for low-voltage equipment
• EN 60664: European harmonised insulation coordination standard
• IEC 60898: General circuit breaker protection standard
• IEC 60947: Low-voltage switchgear and controlgear general requirements
• RoHS: Compliant with EU Restriction of Hazardous Substances Directive
• REACH: Compliant with EU REACH regulation on chemical substances
• WEEE: Compliant with EU Waste Electrical and Electronic Equipment Directive
• TSCA: Compliant with US Toxic Substances Control Act

Applications & Use Cases

• Overcurrent and short-circuit protection in residential distribution boards
• Commercial building electrical panel protection
• Light industrial control panel circuit protection
• Final circuit protection for lighting and socket outlet circuits
• DIN rail mounted installations requiring compact 17.5 mm wide 1-pole MCB