Why Choose the ABB DSE203NMC63A100 RCBO?
The ABB DSE203NMC63A100 is a premium 3P+N electronic residual current circuit breaker with overcurrent protection (eRCBO), engineered to deliver dependable protection against overloads, short circuits and earth leakage faults in three-phase electrical installations. As part of the trusted ABB DSE203N M series, this compact protective device combines multiple safety functions into a single unit, making it ideal for commercial, industrial and OEM applications.
Designed to maximise electrical safety whilst reducing switchboard space, the DSE203NMC63A100 continuously monitors residual current while protecting circuits from overload and short-circuit conditions. Integrating overcurrent and residual current protection into one compact device simplifies installation, reduces wiring complexity and improves long-term system reliability.
Featuring a 63 A Type C trip characteristic, 100 mA Type A residual current sensitivity and a 10 kA breaking capacity, the ABB DSE203NMC63A100 is ideally suited to protecting three-phase distribution systems, industrial machinery, HVAC equipment, automation systems and commercial electrical installations.
Key Advantages
- Compact 3P+N electronic RCBO combining overload, short-circuit and residual current protection.
- 63 A Type C tripping characteristic for circuits with moderate inrush currents.
- 100 mA Type A residual current protection.
- 10 kA breaking capacity suitable for demanding commercial and industrial applications.
- Protects personnel and electrical equipment from multiple fault conditions.
- Space-saving three-module DIN rail mounted construction.
Key Features
- ABB DSE203N M electronic RCBO series.
- Rated current: 63 A.
- Trip characteristic: Type C.
- Residual current sensitivity: 100 mA.
- Residual current type: Type A.
- Configuration: 3P+N with unswitched neutral.
- Rated short-circuit breaking capacity: 10 kA.
- Compact three-module DIN rail mounted construction.
Reliable Protection for Three-Phase Electrical Systems
The ABB DSE203NMC63A100 combines miniature circuit breaker functionality with advanced electronic residual current protection in one compact device. This allows installers to achieve comprehensive protection against overloads, short circuits and earth leakage faults whilst reducing the number of separate protective devices required.
Its Type C tripping characteristic makes it particularly suitable for circuits supplying motors, compressors, HVAC equipment, transformers and other electrical loads with moderate inrush currents. Combined with Type A residual current detection, it provides dependable protection for modern three-phase electrical systems.
Typical Applications
- Commercial distribution boards.
- Industrial electrical installations.
- Motor control centres.
- HVAC systems.
- OEM machinery.
- Automation and process control systems.
- Three-phase power distribution.
