ABB 2CDS213001R0635 SH203-B63 3P 63A 6kA B-Curve Miniature Circuit Breaker MCB

The ABB SH203-B63 (SKU: 2CDS213001R0635) is a 3-pole miniature circuit breaker (MCB) rated at 63A with a 6kA breaking capacity and B-curve trip characteristic, engineered for reliable overcurrent and short-circuit protection in residential, commercial, and light industrial distribution boards. Part of ABB's SH200 series, the SH203-B63 delivers proven IEC 60898-1 performance in a compact 52.5 × 85 × 69 mm DIN rail-mount housing weighing just 0.33 kg.

Technical Specifications

Certifications & Standards

• IEC 60898-1: International standard for household and similar installations — miniature circuit breakers for overcurrent protection
• EN 60898-1: European harmonised standard equivalent to IEC 60898-1, mandatory for CE marking
• IEC/EN 60898-1: Combined IEC and EN compliance confirming full international and European conformity
• IEC 60898: Broader IEC framework standard for circuit breakers used in installations
• IEC 60068-2: Environmental testing standard confirming product reliability under mechanical and climatic stress
• EN 45555: European standard for end-of-life management and recyclability of electrical and electronic products
• EN 60664: Insulation coordination standard for equipment within low-voltage systems
• RoHS: EU Restriction of Hazardous Substances Directive — free from restricted hazardous materials
• REACH: EU REACH regulation compliance — no substances of very high concern (SVHC) above threshold
• WEEE: Waste Electrical and Electronic Equipment Directive — compliant end-of-life recycling obligations

Applications & Use Cases

• Final circuit protection in residential and commercial distribution boards
• Light industrial control panels and switchboards
• Motor branch circuit protection (B-curve suits moderate inrush loads)
• DIN rail installations in automation and building services enclosures
• Backup protection upstream of sensitive electronic loads