ABB 2CDS274011R0504 SH204M-C50 4P 50A 10kA 400V AC Miniature Circuit Breaker

The ABB SH204M-C50 miniature circuit breaker (SKU: 2CDS274011R0504) is a 4-pole, 50 A, 10 kA breaking capacity MCB rated at 400 V AC, designed for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial distribution boards. Featuring DIN rail mounting per DIN 43880, the SH204M-C50 delivers consistent protection performance in a compact 70 × 88 × 69 mm footprint weighing just 0.44 kg.

Technical Specifications

Certifications & Standards

• IEC 60898-1: International standard for circuit breakers for overcurrent protection in household and similar installations
• EN 60898-1: European harmonised standard equivalent to IEC 60898-1 for miniature circuit breakers
• IEC/EN 60898-1: Combined IEC and EN compliance designation confirming dual-standard conformity
• IEC 60898: Base IEC standard series for miniature circuit breaker performance and safety
• IEC 60068-2: Environmental testing standard covering climatic and mechanical robustness
• EN 45555: General methods for the assessment of the lifetime of energy-related products and availability of spare parts and repair services
• EN 60664: Insulation coordination standard for equipment within low-voltage systems
• RoHS: EU Restriction of Hazardous Substances Directive — compliant, restricting use of hazardous materials in electrical equipment
• REACH: EU chemical safety regulation compliance, ensuring no substances of very high concern above threshold limits
• WEEE: Waste Electrical and Electronic Equipment Directive compliance for end-of-life product management

Applications & Use Cases

• Overcurrent and short-circuit protection in commercial and light industrial distribution boards
• Protection of outgoing circuits in main distribution panels and sub-distribution boards
• Control panel wiring protection in building automation and HVAC systems
• Three-phase + neutral circuit protection where simultaneous pole isolation is required
• Suitable for use in offices, retail, industrial facilities, and infrastructure projects