ABB 2CDS633031R0105 BMS313B10 3P 10A 3kA B-Curve 400V AC Miniature Circuit Breaker

The ABB BMS313B10 (SKU: 2CDS633031R0105) is a 3-pole 10A B-curve miniature circuit breaker from the Basic M BMS series, rated at 400V AC with a breaking capacity of 3 kA per IEC 60898-1. Designed for reliable overcurrent and short-circuit protection in industrial control panels and building electrical installations, the BMS313B10 delivers compact, DIN rail-mountable performance with a 52.5 × 88 × 69 mm footprint and a total weight of just 279 g.

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 — circuit breakers
• IEC/EN 60664-1: Insulation coordination for equipment within low-voltage systems
• IEC/EN 60664: Insulation coordination for low-voltage equipment
• IEC 60898: Circuit breakers for overcurrent protection
• IEC 60947: Low-voltage switchgear and controlgear standard family
• IEC 60898-1: Household and similar circuit breaker performance standard
• EN 60664: European harmonised insulation coordination standard
• CE: European conformity marking — meets EU electrical equipment directives
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Compliant with EU chemicals regulation (EC) No 1907/2006
• TSCA: Compliant with US Toxic Substances Control Act requirements
• WEEE: Waste Electrical and Electronic Equipment Directive compliant — supports responsible disposal

Applications & Use Cases

• Overcurrent and short-circuit protection in industrial control panels and automation cabinets
• Protection of branch circuits in commercial and light industrial building installations
• DIN rail mounting in distribution boards and motor control centres
• Suitable for resistive and low-inductive loads requiring B-curve trip characteristics
• Use in applications rated up to 400V AC / 440V per IEC 60947-2