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ABB DSE203NMC25A100 3+N 10kA RCBO C25 100mA 2TAZ234414R3254
£215.65
Why Choose the ABB DSE203NMC25A100 RCBO?
The ABB DSE203NMC25A100 is a premium 3P+N electronic residual current circuit breaker with overcurrent protection (eRCBO), designed to provide 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 device integrates multiple protective functions into a single unit, making it ideal for commercial, industrial and OEM applications.
Designed to improve electrical safety and installation efficiency, the DSE203NMC25A100 continuously monitors residual current whilst protecting circuits against overload and short-circuit conditions. Combining residual current and overcurrent protection into one device reduces panel space, simplifies installation and enhances overall system reliability.
Featuring a 25 A Type C trip characteristic, 100 mA Type A residual current sensitivity and a 10 kA breaking capacity, the ABB DSE203NMC25A100 is ideally suited to protecting three-phase distribution systems, industrial machinery, automation equipment and commercial electrical installations. Its compact three-module DIN rail mounted design enables quick installation within modern switchboards and control panels.
Key Advantages
- Compact 3P+N electronic RCBO combining overload, short-circuit and residual current protection.
- 25 A Type C tripping characteristic suitable for circuits with moderate inrush currents.
- 100 mA Type A residual current protection.
- 10 kA breaking capacity for demanding commercial and industrial applications.
- Provides reliable protection for personnel and electrical equipment.
- DIN rail mounted design saves valuable space within distribution boards.
Key Features
- ABB DSE203N M electronic RCBO series.
- Rated current: 25 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 Installations
The ABB DSE203NMC25A100 combines miniature circuit breaker functionality with advanced electronic residual current protection within a single compact device. This simplifies installation whilst delivering dependable protection against overloads, short circuits and earth leakage faults across commercial and industrial electrical systems.
Its Type C tripping characteristic makes it particularly suitable for circuits supplying motors, transformers and equipment with moderate inrush currents. Combined with Type A residual current detection, it provides dependable protection for modern three-phase electrical installations.
Typical Applications
- Commercial distribution boards.
- Industrial electrical installations.
- OEM machinery.
- Motor control centres.
- Automation and process control systems.
- Three-phase power distribution.
Technical Specifications
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| Poles | 3-pole + N | |
|---|---|---|
| Current | 25 A | |
| Phase | Three Phase | |
| Device Type | RCBO | |
| Trip Curve | C curve | |
| Residual Current | 100 mA | |
| Function | 3P+N electronic residual current circuit breaker with overcurrent protection (eRCBO). | |
| Protection Types | Short-circuit, overload, earth fault, indirect contact; 30 mA versions add direct contact protection. | |
| Type of Residual Current | Type A. | |
| Number of Poles | 3 poles plus unswitched neutral. | |
| Rated Connection Capacity | Busbar 10 mm², rigid conductors 1–25 mm², flexible conductors 1–16 mm². | |
| Operating Characteristic | Instantaneous. | |
| Mechanical Endurance | 20,000 cycles. | |
| Electrical Endurance | 10,000 cycles. | |
| Neutral Terminal Position | Left side. | |
| Power Supply Connection | Bottom entry. |
Frequently Asked Questions
What is the ABB DSE203NMC25A100 used for?
It provides combined overcurrent and residual current protection for three-phase electrical circuits in industrial, commercial and OEM installations.
What does the Type C trip characteristic mean?
Type C RCBOs are intended for circuits with moderate inrush currents, making them suitable for motors, transformers and industrial electrical equipment.
What does the 100 mA residual current rating provide?
The 100 mA Type A residual current protection detects AC and pulsating DC earth leakage currents, helping improve electrical safety and equipment protection.
How many poles does this RCBO protect?
The device protects three phases with an unswitched neutral using a 3P+N configuration.
Where is the DSE203NMC25A100 typically installed?
It is designed for DIN rail installation within commercial distribution boards, industrial control panels and OEM electrical equipment.
Trusted by Electrical Professionals Worldwide
ABB DSE203N M RCBOs are trusted by electrical contractors, panel builders and industrial engineers for delivering dependable circuit protection, compact installation and compliance with recognised international electrical standards.
