ABB 2CSB202001R1250 DDA202 AC-25/0.03 2P 25A 30mA Type AC Residual Current Circuit Breaker Module

The ABB DDA202 AC-25/0.03 (SKU: 2CSB202001R1250) is a 2-pole 25A residual current circuit breaker module from the DDA200 series, providing 30mA Type AC earth-fault protection for residential and light commercial installations. Designed to pair with ABB's DS200 series MCBs, the DDA202 AC-25/0.03 delivers reliable personnel protection against indirect contact and enhanced safety in control panels and distribution boards. With compact dimensions of 70mm × 93mm × 69mm and a weight of just 175g, it fits easily into standard DIN rail assemblies.

Technical Specifications

Certifications & Standards

• IMQ: Italian certification mark confirming compliance with safety and performance standards
• NF: French NF certification confirming conformity with national safety requirements
• IEC 61009: International standard for residual current operated circuit-breakers with integral overcurrent protection
• EN 61009: European harmonised standard for RCCBs — equivalent adoption of IEC 61009
• IEC/EN 60664-1: Insulation coordination for equipment within low-voltage systems
• IEC/EN 61009: Combined IEC/EN designation for RCCB product compliance
• IEC 60068-2: Environmental testing standard covering temperature, humidity and mechanical robustness
• EN 60664-1: European adoption of insulation coordination requirements
• UL 2799: UL standard applicable to electrical systems for electric vehicles and related equipment
• RoHS: Restriction of Hazardous Substances — free from lead, mercury, cadmium and other restricted substances
• REACH: European chemical safety regulation compliance
• WEEE: Waste Electrical and Electronic Equipment directive compliance for responsible end-of-life disposal

Applications & Use Cases

• Personnel protection against indirect contact in residential distribution boards
• Earth-fault protection in light commercial and industrial control panels
• Add-on residual current protection paired with ABB DS200 series MCBs
• DIN rail mounted 2-pole RCCB modules in final circuits up to 25A
• 30mA sensitive tripping for bathroom, kitchen, and outdoor circuit protection