ABB 2CDS273011R0204 SH203M-C20 3P 20A 10kA Miniature Circuit Breaker

The ABB SH203M-C20 miniature circuit breaker (SKU: 2CDS273011R0204) is a 3-pole, 20 A, 10 kA breaking capacity MCB from the SH200M series, designed to provide reliable overcurrent and short-circuit protection in residential, commercial, and light industrial distribution boards. Compact at 52.5 × 88 × 69 mm and weighing just 0.315 kg, the SH203M-C20 delivers performance compliant with IEC 60898-1 in a space-efficient DIN rail mount package.

Technical Specifications

Certifications & Standards

• IEC 60898-1: International standard for household and similar installations — overcurrent protection
• EN 60898-1: European harmonised standard equivalent to IEC 60898-1
• IEC/EN 60898-1: Combined IEC and EN certification marking for circuit breakers
• IEC 60898: Base IEC standard for circuit breakers for overcurrent protection
• IEC 60068-2: Environmental testing standard — mechanical and climatic robustness
• EN 45555: European standard for end-of-life management and information for electrical and electronic equipment
• EN 60664: Insulation coordination for equipment within low-voltage systems
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: EU chemical safety regulation compliance (SVHC substance reporting)
• WEEE: Waste Electrical and Electronic Equipment Directive compliance

Applications & Use Cases

• Overcurrent and short-circuit protection in residential distribution boards
• Commercial building electrical panels and sub-distribution boards
• Light industrial control panels and machinery protection
• Three-phase circuits requiring simultaneous disconnection of all live conductors
• Automation and control panel assemblies requiring compact DIN rail-mounted protection