ABB 2CDS254001R0634 S204-C63 4P 63A 6kA Curve-C 230/400V AC DIN-Rail Miniature Circuit Breaker

The ABB S204-C63 miniature circuit breaker (MCB), SKU 2CDS254001R0634, is a 4-pole, 63 A, 6 kA breaking capacity device from the trusted S200 series, designed for overcurrent and short-circuit protection in industrial and commercial power distribution panels. Rated at 230/400 V AC with Curve-C tripping characteristics, the S204-C63 mounts directly on standard DIN rail and delivers reliable, compact protection for three-phase and neutral circuits. Weighing just 0.48 kg with a compact 70 × 88 × 69 mm footprint, this MCB is ideal for space-efficient control panel installations.

Technical Specifications

Certifications & Standards

• IEC/EN 60898-1: International and European standard for MCBs used in household and similar installations
• IEC/EN 60947-2: International and European standard for circuit breakers in industrial applications
• IEC 60898-1400: Extended MCB standard (400 V rated)
• IEC 60947-2440: Industrial circuit breaker standard (440 V)
• IEC 60068-2: Environmental testing standard
• EN 60898-1: European MCB standard
• EN 60947-2: European industrial circuit breaker standard
• EN 45555: European standard for end-of-life management of electrical equipment
• EN 60664: Insulation coordination for low-voltage equipment
• UL 1077: UL standard for supplementary protectors used in electrical equipment
• CSA: Canadian Standards Association certification
• CE: European Conformity marking — meets EU safety, health, and environmental requirements
• UKCA: UK Conformity Assessed marking for Great Britain market
• RoHS: Restriction of Hazardous Substances — compliant, no restricted materials
• REACH: EU chemical safety regulation — compliant
• WEEE: Waste Electrical and Electronic Equipment directive — compliant

Applications & Use Cases

• Overcurrent and short-circuit protection in three-phase + neutral industrial distribution boards
• Commercial building power panel protection at 400 V AC
• Control panel circuit protection in manufacturing and automation environments
• Protection of motors, HVAC equipment, and resistive loads suited to Curve-C characteristics
• Any application requiring compact 4-pole DIN-rail MCB protection up to 63 A