ABB 2CDS251001R0105 S201-B10 1P 10A 6kA B-Curve DIN-Rail Miniature Circuit Breaker

The ABB S201-B10 miniature circuit breaker (MCB), reference 2CDS251001R0105, is a 1-pole, 10 A, B-curve device from the S200 series rated at 230/400 V AC with a 6 kA breaking capacity — delivering reliable overcurrent and short-circuit protection for residential and light commercial control panel installations. The S201-B10 snaps directly onto standard DIN rail, minimising installation time while its compact 17.5 mm width maximises panel density.

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 low-voltage switchgear circuit-breakers
• UL 1077: UL standard for supplementary protectors for use in electrical equipment
• IEC 60898-1: IEC standard for overcurrent protection of household and similar installations
• EN 60898-1: European harmonised standard for miniature circuit breakers
• IEC/EN 60898-1: Combined IEC/EN compliance for MCB performance and safety
• IEC/EN 60947-2: Combined IEC/EN compliance for low-voltage circuit-breaker switchgear
• IEC 60898-1 230: IEC standard covering 230 V AC rated MCB applications
• IEC 60068-2: Environmental testing standard for robustness and reliability
• EN 60947-2: European standard for low-voltage circuit breakers in industrial applications
• EN 45555: European standard for general methods for the assessment of the energy efficiency of networked standby-related products
• EN 60664: Insulation coordination for equipment within low-voltage systems
• EN 60898-1: European standard for miniature circuit breakers for overcurrent protection
• EN 60947-2: European standard for low-voltage switchgear and controlgear circuit breakers
• CSA: Canadian Standards Association approval for North American market compliance
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: EU Chemical safety regulation compliance (ECHA SVHC)
• WEEE: Waste Electrical and Electronic Equipment Directive compliant
• CE: European Conformity marking for EU market access
• UKCA: UK Conformity Assessed marking for Great Britain market access

Applications & Use Cases

• Overcurrent and short-circuit protection in residential distribution boards
• Light commercial building electrical panel protection
• Control panel branch circuit protection in industrial automation cabinets
• Protection of lighting circuits, socket-outlet circuits, and small motor loads
• OEM equipment and machine building where compact 1-pole protection is required