ABB 2CDS273011R0404 SH203M-C40 3P 40A 10kA Miniature Circuit Breaker

The ABB SH203M-C40 (SKU: 2CDS273011R0404) is a 3-pole, 40 A miniature circuit breaker (MCB) from the SH200M series, delivering a 10 kA breaking capacity at 400 V AC in accordance with IEC 60898-1. Designed for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial distribution boards, the SH203M-C40 combines compact dimensions of 52.5 mm × 88 mm × 69 mm with a lightweight 0.33 kg profile for straightforward DIN rail installation.

Technical Specifications

Certifications & Standards

• IEC 60898-1 / EN 60898-1: Primary product standard for household and similar installations — circuit breakers for overcurrent protection
• IEC/EN 60898-1: Combined IEC and EN harmonised standard compliance
• IEC 60898: General IEC standard for circuit breakers for overcurrent protection
• IEC 60068-2: Environmental testing standard — verifies performance under temperature, humidity, and mechanical stress conditions
• EN 60664: Insulation coordination for equipment within low-voltage systems
• EN 45555: General methods for the assessment of the ability of energy-related products to be repaired, reused, and recycled
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Compliant with EU REACH Regulation (EC) No 1907/2006 on chemical substances
• WEEE: Waste Electrical and Electronic Equipment Directive compliance for end-of-life recycling

Applications & Use Cases

• Overcurrent and short-circuit protection in residential and commercial distribution boards
• Protection of final circuits in light industrial control panels and motor control centres
• Three-phase branch circuit protection up to 40 A in DIN rail assemblies
• Replacement or upgrade of existing 3-pole MCBs in SH200M-compatible enclosures