£410.63
The ABB DSE203NMC6A100 is a high-performance 3P+N electronic residual current circuit breaker with overcurrent protection (eRCBO), designed to provide comprehensive protection against overloads, short circuits and earth leakage faults in three-phase electrical installations. Part of the trusted ABB DSE203N M series, this RCBO combines advanced protection and compact installation in a single device for commercial, industrial and OEM applications.
Designed to improve electrical safety and system reliability, the DSE203NMC6A100 protects personnel and equipment by automatically disconnecting the circuit in the event of overload, short circuit or residual current faults. Its electronic residual current sensing delivers dependable protection while simplifying panel layouts by combining multiple protective functions into one device.
With a 6 A Type C trip characteristic, 100 mA Type A residual current sensitivity and a 10 kA breaking capacity, the ABB DSE203NMC6A100 is ideal for protecting three-phase distribution circuits, machinery, control panels and industrial electrical installations. The compact three-module design allows efficient DIN rail installation within modern distribution boards.
The ABB DSE203NMC6A100 combines miniature circuit breaker and residual current protection into a single compact device. This reduces installation complexity while providing reliable protection against overloads, short circuits and earth leakage faults, helping minimise equipment damage and improve electrical safety.
Its electronic residual current technology and Type C tripping characteristic make it suitable for commercial buildings, industrial machinery, distribution boards and automation systems where dependable protection and high fault-breaking capacity are essential.
| Current | 6 A |
|---|---|
| Phase | Three Phase |
| Type | 3P+N electronic residual current circuit breaker with overcurrent protection (eRCBO). |
| Residual Current Type | Type A. |
| Number of Poles Protected | 3 poles plus neutral (neutral unswitched). |
| Operating Characteristic | Instantaneous trip function. |
| Connection | Bottom power supply connection; neutral terminal positioned on the left. |
| Terminal Capacity | Busbar 10 mm²; rigid cables 1–25 mm²; flexible cables 1–16 mm². |
| Electrical Endurance | Rated for 10,000 cycles. |
| Mechanical Endurance | Rated for 20,000 cycles. |
| Weight | 0.549 kg. |
It provides combined overcurrent and residual current protection for three-phase electrical circuits in commercial and industrial installations.
Type C breakers are designed for circuits with moderate inrush currents, making them suitable for motors, transformers and general industrial loads.
The 100 mA residual current sensitivity provides earth leakage protection commonly used for equipment protection and fire prevention applications.
The device protects three phases with an unswitched neutral in a 3P+N configuration.
It is installed on standard DIN rails within commercial, industrial and OEM electrical distribution boards and control panels.
ABB DSE203N M RCBOs are widely specified by electrical contractors, panel builders and industrial engineers for dependable circuit protection, high reliability and compliance with international electrical safety standards.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...