ABB 2CDS633031R0405 BMS313B40 3P 40A 3kA 400V AC B-Curve Miniature Circuit Breaker

The ABB BMS313B40 (SKU: 2CDS633031R0405) is a 3-pole 40 A B-curve miniature circuit breaker (MCB) from the Basic M BMS series, rated at 400 V AC with a breaking capacity of 3 kA per IEC 60898-1. Designed for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial control panels, the BMS313B40 delivers consistent performance in a compact 52.5 × 88 × 69 mm DIN-rail-mount housing.

Technical Specifications

Certifications & Standards

• IEC 60898-1: Standard for circuit breakers for overcurrent protection for 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
• CB Certificate acc. to IEC 60898: International CB scheme certification for global market acceptance
• IEC/EN 60664: Insulation coordination standard compliance
• IEC 60947: Low-voltage switchgear and controlgear compliance
• EN 60664: European standard for insulation coordination
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Compliant with EU REACH regulation (EC) No 1907/2006
• WEEE: Compliant with Waste Electrical and Electronic Equipment Directive