ABB 2CDS254001R0254 S204-C25 4P 25A 6kA C-Curve DIN-Rail Miniature Circuit Breaker

The ABB S204-C25 miniature circuit breaker (SKU: 2CDS254001R0254) is a 4-pole, 25A, 6kA C-curve MCB from the S200 series, designed for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial installations. Rated at 230/400V AC and featuring DIN-rail mounting, the S204-C25 delivers dependable performance in control panels and distribution boards where space efficiency and compliance are critical.

Technical Specifications

Certifications & Standards

• IEC/EN 60898-1: Household and similar installations — circuit breakers for overcurrent protection
• IEC/EN 60947-2: Low-voltage switchgear and controlgear — circuit breakers (industrial)
• UL 1077: Supplementary protectors for use in electrical equipment
• IEC 60898-1: International standard for miniature circuit breakers
• EN 60898-1: European harmonised standard for circuit breakers
• IEC 60898: Overarching IEC standard for circuit breakers for household use
• IEC 60947: Low-voltage switchgear and controlgear general requirements
• IEC 60068-2: Environmental testing for electronic and electrical equipment
• EN 60947-2: European standard for low-voltage circuit breakers
• EN 45555: General methods for the assessment of the ability to recycle and recover electrical and electronic equipment
• EN 60664: Insulation coordination for equipment within low-voltage systems
• EN 60898-1: European standard for miniature circuit breakers
• EN 60947-2: Low-voltage switchgear — European harmonised standard
• CSA: Canadian Standards Association certification for North American market compliance
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals — EU compliant
• WEEE: Waste Electrical and Electronic Equipment Directive — compliant
• 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 residential distribution boards
• Commercial building electrical panels and sub-distribution boards
• Light industrial control panels requiring 4-pole protection at 400V AC
• Protection of three-phase + neutral circuits where simultaneous pole disconnection is required
• Automation and control panel assemblies in industrial environments

FAQ

• What does the C-curve mean on the S204-C25? The C trip curve is designed for loads with moderate inrush currents, such as motors, transformers, and fluorescent lighting — tripping instantaneously at 5–10× rated current.
• Is the ABB S204-C25 suitable for three-phase systems? Yes. The 4-pole design (4P) is ideal for three-phase + neutral (3P+N) circuits operating at 400V AC.
• What DIN-rail width does the S204-C25 require? It mounts on standard 35mm DIN-rail (EN 60715). Four poles occupy 88mm of rail width.
• Is the S204-C25 RoHS and CE compliant? Yes. The ABB S204-C25 carries CE, RoHS, REACH, WEEE, and UKCA marks among others.