ABB 2CDS634031R0064 BMS314C06 4P 6A 3kA Curve-C DIN Rail Miniature Circuit Breaker

The ABB BMS314C06 miniature circuit breaker (MCB), SKU 2CDS634031R0064, is a 4-pole, 6 A, Curve-C device rated at 400 V AC with a breaking capacity of 3 kA — delivering reliable overcurrent and short-circuit protection for residential, commercial, and light-industrial distribution boards. Part of ABB's Basic M BMS series, the BMS314C06 complies with both IEC 60898-1 and IEC 60947-2, making it suitable for a wide range of panel-building applications. Its compact DIN-rail design (70 mm × 88 mm × 69 mm, 372 g) fits neatly into standard enclosures with a power dissipation of just 2 W per pole.

Technical Specifications

Certifications & Standards

• IEC 60898-1: Household and similar installations — circuit breakers for overcurrent protection
• IEC 60947-2: Low-voltage switchgear and controlgear — circuit breakers for industrial use
• IEC/EN 60664-1: Insulation coordination for equipment within low-voltage supply systems
• IEC/EN 60664: Insulation coordination for low-voltage equipment
• RoHS (EU Directive 2011/65/EU & Amendment 2015/863): Restriction of hazardous substances in electrical and electronic equipment
• REACH: EU regulation on registration, evaluation, authorisation and restriction of chemicals
• WEEE: Waste electrical and electronic equipment directive compliance

Applications & Use Cases

• Overcurrent and short-circuit protection in 4-wire (3-phase + neutral) distribution circuits
• Residential and commercial distribution boards requiring simultaneous all-pole disconnection
• Light-industrial control panels and machine building where IEC 60947-2 compliance is required
• Building automation and HVAC distribution sub-circuits
• Panel builders seeking a compact, DIN-rail-mounted 4P MCB with Curve-C characteristics for motor or transformer loads