ABB 2CDS253001R0065 S203-B6 3P 6A 6kA Type-B Miniature Circuit Breaker (MCB) DIN Rail 230/400V AC

The ABB S203-B6 miniature circuit breaker (MCB), SKU 2CDS253001R0065, is a 3-pole Type-B protective device rated at 6 A and 230/400 V AC with a 6 kA breaking capacity, designed for reliable overcurrent and short-circuit protection in residential, commercial, and light-industrial control panel applications. Part of ABB's proven S200 series, the S203-B6 mounts on standard DIN rail and complies with IEC/EN 60898-1 and IEC/EN 60947-2 for global deployment confidence.

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
• IEC 60898-1400: Extended IEC 60898-1 altitude/environmental variant
• IEC 60947-2440: Extended IEC 60947-2 performance variant
• IEC 60068-2: Environmental testing standard compliance
• EN 60898-1: European adoption of IEC 60898-1
• EN 60947-2: European adoption of IEC 60947-2
• EN 45555: General methods for the assessment of the lifetime of energy-related products
• EN 60664: Insulation coordination for equipment within low-voltage systems
• UL 1077: UL standard for supplementary protectors for use in electrical equipment (North America)
• CSA: Canadian Standards Association certification
• 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 chemicals regulation (EC) No 1907/2006
• WEEE: Waste Electrical and Electronic Equipment Directive compliant

Applications & Use Cases

• Overcurrent and short-circuit protection in residential distribution boards
• Commercial building electrical installations and sub-distribution panels
• Light-industrial control panels and automation enclosures
• Protection of motor circuits and resistive loads requiring Type B trip characteristic
• 3-phase 400 V AC systems requiring compact DIN rail MCB protection