ABB 2CDS213103R0634 SH203-C63NA 3P+N 63A 6kA C-Curve Miniature Circuit Breaker

The ABB SH203-C63NA miniature circuit breaker (SKU: 2CDS213103R0634) is a 3P+N, 63 A, C-curve MCB from the SH200 series, delivering 6 kA breaking capacity for reliable overcurrent and short-circuit protection in residential, commercial, and light-industrial distribution boards. Compact at 70 mm × 85 mm × 69 mm and weighing just 0.43 kg, the SH203-C63NA is fully compliant with IEC 60898-1 and EN 60898-1, making it suitable for panel builders and system integrators across global markets.

Technical Specifications

Certifications & Standards

• IEC 60898-1: International standard for circuit breakers for overcurrent protection in household and similar installations
• IEC/EN 60898-1: Harmonised IEC and EN compliance for MCB performance and safety
• EN 60898-1: European standard aligned with IEC 60898-1 for miniature circuit breakers
• IEC 60898: Core IEC framework covering MCB electrical and mechanical requirements
• IEC 60068-2: Environmental testing standard covering climatic and mechanical durability
• EN 60664: Insulation coordination standard for low-voltage equipment within electrical installations
• EN 45555: General methods for the assessment of the ability of energy-related products to recover materials and energy
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals — EU compliance
• WEEE: Waste Electrical and Electronic Equipment Directive — responsible end-of-life disposal compliance

Applications & Use Cases

• Final circuit protection in residential and commercial distribution boards
• Overcurrent and short-circuit protection for 3-phase+neutral loads up to 63 A
• DIN rail installation in control panels and switchgear assemblies
• Building automation and light-industrial power distribution
• Replacement or upgrade of legacy 3P+N MCBs in existing installations