ABB 2CDS273001R0014 S203M-C1 3P 1A 10kA C-Curve Miniature Circuit Breaker

The ABB S203M-C1 miniature circuit breaker (SKU: 2CDS273001R0014) is a 3-pole, 1A, C-curve MCB from the S200M series rated at 10 kA breaking capacity and 230/400V AC, engineered for reliable overcurrent and short-circuit protection in industrial control panels and distribution boards. The S203M-C1 delivers high performance in compact DIN-rail installations, measuring just 52.5 × 88 × 69 mm and weighing 336 g, making it ideal for space-constrained enclosures where dependable protection is non-negotiable.

Technical Specifications

Certifications & Standards

• IEC/EN 60898-1: Household and similar installations circuit breaker standard
• IEC/EN 60947-2: Low-voltage switchgear and controlgear — circuit breakers
• IEC 60898-1: Circuit breakers for overcurrent protection (IEC edition)
• EN 60898-1: Circuit breakers for overcurrent protection (EN edition)
• IEC/EN 60898: General circuit breaker performance standard
• IEC/EN 60664-1440: Insulation coordination for equipment within low-voltage systems
• IEC/EN60898: Overcurrent circuit breaker compliance (combined reference)
• IEC 60898-1400: Circuit breaker standard — 400V AC specification
• IEC 60947-2440: Low-voltage switchgear standard — 440V AC specification
• IEC 60068-2: Environmental testing for electrical and electronic equipment
• EN 60898: European standard for circuit breakers in domestic/similar installations
• EN 60947-2: European low-voltage switchgear and controlgear standard
• EN45555: General methods for the assessment of the ability of energy-related products to be repaired, reused and recycled
• EN 60664-1440: Insulation coordination — low-voltage systems (EN edition)
• EN60898: EN circuit breaker standard (alternate reference)
• EN60947: EN low-voltage switchgear standard (alternate reference)
• UL1077: Supplementary protectors for use in electrical equipment (UL standard)
• 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: Conformité Européenne — meets EU safety, health, and environmental requirements
• UKCA: UK Conformity Assessed — valid for Great Britain market post-Brexit

Applications & Use Cases

• Overcurrent and short-circuit protection in industrial control panels and switchboards
• Protection of motor branch circuits and low-current feeder circuits
• DIN-rail mounted distribution boards in manufacturing and process automation environments
• Building services and infrastructure electrical installations requiring IEC-certified protection
• Machine building applications demanding compact 3-pole MCB solutions with high breaking capacity