ABB 2CDS273001R0404 S203M-C40 3P 40A 10kA C-Curve 230/400V AC Miniature Circuit Breaker

The ABB S203M-C40 miniature circuit breaker (SKU: 2CDS273001R0404) is a high-performance 3-pole MCB from the S200M series, rated at 40A with a breaking capacity of 10kA at 230/400V AC. Designed with a C-curve tripping characteristic, the S203M-C40 provides reliable overcurrent and short-circuit protection for industrial control panels, distribution boards, and commercial electrical installations where moderate inrush currents are present.

Technical Specifications

Certifications & Standards

• IEC/EN 60898-1: International and European standard for miniature circuit breakers for overcurrent protection in household and similar installations
• IEC/EN 60947-2: International and European standard for low-voltage switchgear — circuit breakers for industrial applications
• CSA 22.2 No. 235: Canadian Standards Association approval for supplementary protectors
• UL 1077: Underwriters Laboratories standard for supplementary protectors for use in electrical equipment
• IEC 60898-1400: Extended IEC standard for miniature circuit breaker testing
• IEC 60947-2440: Extended IEC standard for low-voltage circuit breaker compliance
• IEC 60068-2: Environmental testing standard for electrical and electronic equipment
• EN 60898: European standard for circuit breakers for overcurrent protection
• EN 60947-2: European standard for low-voltage switchgear circuit breakers
• EN 45555: European standard for end-of-life treatment of 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: Compliant with EU REACH Regulation (EC) No 1907/2006 on chemical substances
• WEEE: Waste Electrical and Electronic Equipment Directive compliance
• CE: Conformité Européenne — meets EU health, safety, and environmental requirements
• UKCA: UK Conformity Assessed — meets Great Britain market requirements post-Brexit