ABB 2CDS273001R0034 S203M-C3 3P 3A 10kA C-Curve 230/400V AC Miniature Circuit Breaker

The ABB S203M-C3 (SKU: 2CDS273001R0034) is a 3-pole miniature circuit breaker from the S200M series, rated at 3A with a C-curve trip characteristic and a breaking capacity of 10kA at 230/400V AC. Designed for industrial control panels and distribution boards, the S203M-C3 delivers reliable overcurrent and short-circuit protection in compact installations where high breaking performance and precise tripping are essential.

Technical Specifications

Certifications & Standards

• IEC/EN 60898-1: International and European standard for circuit breakers for overcurrent protection in household and similar installations
• IEC/EN 60947-2: International and European standard for low-voltage switchgear — circuit breakers
• IEC 60898-1: IEC standard for miniature circuit breakers
• EN 60898-1: European standard for miniature circuit breakers
• IEC/EN 60898: Combined IEC/EN standard for circuit breakers
• IEC/EN 60664-1440: Insulation coordination for equipment within low-voltage systems
• IEC/EN60898: Circuit breaker standard (alternate designation)
• IEC 60898-1400: Circuit breaker standard variant
• IEC 60947-2440: Low-voltage switchgear standard variant
• IEC 60068-2: Environmental testing standard
• EN 60898: European circuit breaker standard
• EN 60947-2: European low-voltage switchgear standard
• EN45555: General methods for the assessment of the ability of electrical and electronic products to be repaired, reused and recycled
• EN 60664-1440: European insulation coordination standard
• EN60898: European MCB standard (alternate designation)
• EN60947: European low-voltage switchgear standard (alternate designation)
• UL1077: UL standard for supplementary protectors for use in electrical equipment
• CSA: Canadian Standards Association certification
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals compliance
• WEEE: Waste Electrical and Electronic Equipment Directive compliance
• CE: European Conformity marking — meets EU health, safety, and environmental protection requirements
• UKCA: UK Conformity Assessed marking — meets Great Britain market requirements

Applications & Use Cases

• Overcurrent and short-circuit protection in industrial control panels
• Distribution boards in commercial and industrial buildings
• Machine control cabinets requiring precise C-curve tripping characteristics
• Motor branch circuit protection (light inrush loads)
• Sub-distribution systems operating at 230/400V AC three-phase networks