ABB 2CDS253001R0255 S203-B25 3P 25A 6kA Type-B DIN-Rail Miniature Circuit Breaker

The ABB S203-B25 miniature circuit breaker (MCB), catalog number S203-B25 and SKU 2CDS253001R0255, is a 3-pole, 25A, Type-B device rated at 230/400V AC with a 6kA breaking capacity — engineered for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial control panels. Designed for fast DIN-rail installation, the S200 series delivers consistent performance across demanding electrical environments.

Technical Specifications

Certifications & Standards

• IEC/EN 60898-1: Miniature circuit breakers for overcurrent protection in household and similar installations
• IEC 60898-1: International standard for miniature circuit breakers
• EN 60898-1: European harmonised standard for miniature circuit breakers
• IEC/EN 60947-2: Low-voltage switchgear — circuit breakers for industrial applications
• IEC 60947-2: International standard for low-voltage circuit breakers
• EN 60947-2: European standard for low-voltage circuit breakers
• IEC 60898: General requirements for miniature circuit breakers
• IEC 60947: Low-voltage switchgear and controlgear general requirements
• IEC 60068-2: Environmental testing procedures for electrical/electronic components
• IEC/EN 60664: Insulation coordination for equipment within low-voltage systems
• EN 60664: European standard for insulation coordination in low-voltage systems
• UL 1077: Supplementary protectors for use in electrical equipment (UL listed)
• CSA: Canadian Standards Association certification for electrical safety
• CE: European Conformity marking — meets EU safety, health, and environmental requirements
• UKCA: UK Conformity Assessed marking for the Great Britain market
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals compliant
• WEEE: Waste Electrical and Electronic Equipment Directive compliant
• EN 45555: General methods for the assessment of the ability to recover energy and materials from electrical and electronic equipment