ABB 2CSB203001R1630 DDA203 AC-63/0.03 3P 63A 30mA Type AC Residual Current Circuit Breaker RCCB Module

The ABB DDA203 AC-63/0.03 (SKU: 2CSB203001R1630) is a 3-pole residual current circuit breaker (RCCB) module from the DDA200 series, rated at 63 A with a 30 mA residual current trip threshold for Type AC earth fault protection. Designed for integration into modular protection assemblies, the DDA203 AC-63/0.03 delivers reliable personal and installation protection against earth leakage currents in industrial and commercial control panel applications. Compact at 122.5 × 93 × 69 mm and weighing just 325 g, it is engineered for DIN rail mounting in space-critical enclosures.

Technical Specifications

Certifications & Standards

• IMQ: Italian certification mark confirming compliance with national and international electrical safety standards
• NF: French NF certification mark verifying compliance with applicable French and European standards
• IEC 61009: International standard for residual current operated circuit breakers with integral overcurrent protection
• EN 61009: European harmonised standard equivalent to IEC 61009 for RCCB/RCBO devices
• IEC/EN 60664-1: Insulation coordination for equipment within low-voltage systems — dimensioning and testing
• IEC 60068-2: Environmental testing standard covering mechanical and climatic durability requirements
• EN 60664-1: European harmonised insulation coordination standard for low-voltage equipment
• UL 2799: UL standard for electrical systems for electric-drive vehicles and associated safety requirements
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Compliant with EU REACH Regulation (EC) No 1907/2006 on chemical substances
• WEEE: Registered under the EU Waste Electrical and Electronic Equipment Directive 2012/19/EU

Applications & Use Cases

• Earth leakage protection in industrial control panels and distribution boards
• Personal protection against electric shock in commercial and light industrial installations
• Modular protection assemblies requiring a dedicated 3-pole RCCB module at 63 A
• Installations requiring Type AC sensitivity to sinusoidal alternating residual currents at 30 mA
• Building automation and facility management electrical distribution systems