Why Choose the ABB DSE203NMC63A30 Electronic RCBO?
The ABB DSE203NMC63A30 is a premium 3P+N electronic residual current circuit breaker with overcurrent protection (eRCBO) that combines overload, short-circuit and earth leakage protection in a single compact device. Designed for commercial, industrial and infrastructure applications, it provides comprehensive protection for individual three-phase circuits while simplifying distribution board layouts.
Part of the ABB DSE203N M electronic RCBO range, this model features a 63 A rated current, Type C tripping characteristic, 30 mA Type A residual current protection and a 10 kA breaking capacity. The neutral is unswitched, making it suitable for protecting three-phase circuits supplying motors, HVAC equipment, pumps, compressors and industrial machinery with moderate inrush currents.
Key Advantages
- Three-phase plus neutral electronic RCBO.
- Combined overload, short-circuit and earth leakage protection.
- 63 A rated current.
- 30 mA Type A residual current protection.
- Type C tripping characteristic for moderate inrush current loads.
- 10 kA rated short-circuit breaking capacity.
- Unswitched neutral design.
- Compact construction helps reduce switchboard space requirements.
Key Features
- ABB DSE203N M electronic RCBO.
- 3 protected poles plus neutral.
- Electronic residual current monitoring.
- Thermal overload protection.
- Magnetic short-circuit protection.
- Type A residual current detection for AC and pulsating DC leakage currents.
- 30 mA additional protection against electric shock.
- Real contact position indicator.
- Earth fault trip indication.
- Pillar terminals.
- Electrical endurance: 10,000 operations.
- Mechanical endurance: 20,000 operations.
Advanced Electronic Circuit Protection
The ABB DSE203NMC63A30 continuously monitors overload, short-circuit and earth leakage conditions. When a fault occurs, the RCBO disconnects the affected circuit rapidly, helping protect equipment, improve personnel safety and reduce downtime. Combining all protection functions into a single device simplifies installation and maintenance while providing dedicated protection for individual three-phase circuits.
Typical Applications
- Commercial distribution boards.
- Industrial switchboards.
- Motor protection circuits.
- HVAC systems.
- Pumps and compressors.
- Machine control panels.
- Automation systems.
- General three-phase power distribution.
