ABB 2CDS633031R0404 BMS313C40 3P 40A 3kA C-Curve DIN Rail Miniature Circuit Breaker

The ABB BMS313C40 miniature circuit breaker (SKU: 2CDS633031R0404) is a 3-pole, 40A, 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 installations. Mounted on a standard DIN rail, this compact breaker measures 52.5 × 88 × 69 mm and weighs just 279g, making it ideal for space-efficient control panel builds. Compliant with IEC 60898-1 and IEC 60947-2, the BMS313C40 meets the demands of modern electrical installations.

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 supply systems
• IEC/EN 60664: Insulation coordination for equipment within low-voltage systems
• EN 60664: European harmonised standard for insulation coordination
• IEC 60898: Circuit breakers for overcurrent protection — general series compliance
• RoHS: Restriction of Hazardous Substances — compliant for use in the European Union
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals — EU compliant
• WEEE: Waste Electrical and Electronic Equipment Directive — compliant disposal and recycling