ABB 2CDS253001R0204 S203-C20 3P 20A 6kA C-Curve DIN-Rail Miniature Circuit Breaker

The ABB S203-C20 miniature circuit breaker (SKU: 2CDS253001R0204) is a 3-pole, 20A, 6kA breaking capacity MCB from the S200 series, designed for reliable overload and short-circuit protection in industrial and commercial installations. Rated at 230/400V AC with a C-trip characteristic, the S203-C20 is engineered for DIN-rail mounting and suits distribution boards, control panels, and motor branch circuits where dependable protection is essential.

Technical Specifications

Certifications & Standards

• IEC/EN 60898-1: International and European standard for household and similar installations MCBs
• IEC/EN 60947-2: International and European standard for industrial circuit breakers
• UL 1077: UL standard for supplementary protectors for use in electrical equipment
• IEC 60898-1400: Extended IEC 60898-1 altitude/environmental variant
• IEC 60947-2440: Extended IEC 60947-2 variant
• IEC 60068-2: Environmental testing standard
• EN 60947-2: European standard for industrial circuit breakers
• EN 60898-1: European standard for MCBs for household and similar installations
• 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
• CSA: Canadian Standards Association certified
• CE: Conformité Européenne — meets EU safety, health, and environmental requirements
• UKCA: UK Conformity Assessed — meets Great Britain market requirements
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Compliant with EU REACH regulation (EC) No 1907/2006
• WEEE: Waste Electrical and Electronic Equipment Directive compliant

Applications & Use Cases

• Overload and short-circuit protection in 3-phase distribution boards
• Branch circuit protection in industrial control panels and motor control centres
• Protection of lighting, heating, and general-purpose loads with moderate inrush (C-curve)
• Commercial and industrial building electrical installations
• OEM equipment and machinery electrical panels