ABB 2CSB204001R1250 DDA204 AC-25/0.03 4P 25A 30mA Type AC Residual Current Circuit Breaker Module

The ABB DDA204 AC-25/0.03 (SKU: 2CSB204001R1250) is a 4-pole residual current circuit breaker (RCCB) module from the DDA200 series, rated at 25 A with a 30 mA Type AC residual current sensitivity for reliable personal protection and fire prevention in industrial and commercial installations. Designed to detect earth fault currents of AC sinusoidal waveform, the DDA204 AC-25/0.03 complements modular circuit protection systems and is suitable for integration into distribution boards and control panels requiring IEC 61009-compliant leakage protection.

Technical Specifications

Certifications & Standards

• IMQ: Italian mark of quality for electrical safety compliance
• NF: French national certification mark for product conformity
• IEC 61009: International standard for residual current operated circuit-breakers with integral overcurrent protection
• EN 61009: European harmonised standard for RCCBs with integral overcurrent protection
• IEC/EN 60664-1: Insulation coordination for equipment within low-voltage systems
• IEC/EN 61009: Combined IEC and EN compliance for residual current devices
• IEC 60068-2: Environmental testing for electronic and electrical components
• EN 45555-69: General methods for the assessment of the ability of energy-related products to be repaired, reused and recycled
• EN 60664-1: European standard for insulation coordination in low-voltage systems
• UL 2799: Standard for electrical systems safety
• 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: Compliant with EU Waste Electrical and Electronic Equipment Directive 2012/19/EU

Applications & Use Cases

• Earth leakage protection in residential, commercial, and light industrial distribution boards
• Personnel protection against indirect contact in 4-wire (3-phase + neutral) AC systems
• Fire prevention through detection of low-level earth fault currents (30 mA sensitivity)
• Integration into modular protection schemes alongside MCBs in control panels
• Building automation and industrial automation control panel assemblies