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2TAZ265114R2204 ABB DSN201E M C20 A30 RCBO Type A 1P+N 30mA 20A
ABB DSN201E M C20 A30 is a compact 20 A 1P+N Type A RCBO with C-curve overcurrent protection, 30 mA residual-current sensitivity and 10 kA breaking capacity.
£144.64
Why Choose the ABB DSN201E M C20 A30 RCBO?
The ABB DSN201E M C20 A30 is a compact and reliable 1P+N residual current circuit breaker with overcurrent protection (RCBO) designed to provide combined protection against overloads, short circuits and residual earth leakage currents. As part of the ABB DSN201E M RCBO series, it combines overcurrent and residual-current protection within a space-saving modular device for residential, commercial and industrial electrical distribution applications.
This RCBO features Type A residual-current protection, enabling detection of sinusoidal AC residual currents as well as pulsating DC residual currents. Its 30 mA rated residual operating current provides additional protection against electric shock and earth leakage faults, making it suitable for modern circuits supplying conventional and electronic loads.
With a rated current of 20 A, C tripping characteristic and 10 kA breaking capacity, the DSN201E M C20 A30 provides dependable circuit protection where moderate starting or inrush currents may occur. Its compact single-module format and DIN-rail mounting help maximise available space inside electrical distribution boards and control panels.
Key Advantages
- Combined residual-current and overcurrent protection in one compact RCBO.
- 20 A rated current for final circuit protection.
- 30 mA residual operating current for additional protection against electric shock.
- Type A residual-current protection for sinusoidal AC and pulsating DC residual currents.
- C-curve tripping characteristic suitable for circuits with moderate starting and inrush currents.
- 10 kA breaking capacity for robust short-circuit protection.
- Compact 1P+N configuration for space-efficient distribution-board installation.
Key Features
- ABB DSN201E M RCBO series.
- 20 A rated current.
- C tripping characteristic.
- Type A residual-current protection.
- 30 mA rated residual operating current.
- 10 kA breaking capacity.
- 1P+N pole configuration.
- Combined overload, short-circuit and residual-current protection.
- Compact single-module design for efficient use of distribution-board space.
- DIN-rail mounting for modular electrical distribution systems.
Combined Residual Current and Overcurrent Protection
An RCBO combines the functions of a miniature circuit breaker and a residual current protective device within a single unit. The ABB DSN201E M C20 A30 therefore protects its connected circuit against overload and short-circuit conditions while simultaneously monitoring for potentially hazardous residual currents to earth.
The Type A characteristic allows the device to respond to sinusoidal AC and pulsating DC residual currents, while its 30 mA sensitivity provides additional protection against electric shock. The C-curve overcurrent characteristic is suitable for circuits with moderate inrush currents, providing a practical balance between dependable fault protection and resistance to unwanted tripping during normal equipment start-up.
Typical Applications
- Residential electrical distribution boards.
- Commercial building final circuits.
- General-purpose power and equipment circuits.
- Circuits supplying equipment with moderate starting or inrush currents.
- Circuits containing electronic equipment capable of producing pulsating DC residual currents.
- Industrial distribution and control panels.
Technical Specifications
| Series | DSN201E M |
|---|---|
| SKU | DSN201EMC20A30 |
| ABB order code | 2TAZ265114R2204 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Rated current | 20 A |
| Tripping characteristic | C curve |
| Residual-current type | Type A |
| Rated residual operating current | 30 mA |
| Breaking capacity | 10 kA |
| Number of poles | 1P+N |
| Mounting type | DIN rail |
| Module width | 1 module |
Frequently Asked Questions
What is the ABB DSN201E M C20 A30 used for?
This RCBO provides combined overload, short-circuit and residual-current protection for 1P+N electrical circuits in residential, commercial and industrial electrical installations.
What is the rated current of this RCBO?
The ABB DSN201E M C20 A30 has a rated current of 20 A with a C-curve overcurrent tripping characteristic.
What residual-current sensitivity does it provide?
The device has a rated residual operating current of 30 mA, providing additional protection against electric shock and residual earth leakage faults.
What does Type A protection mean?
Type A residual-current protection is designed to detect sinusoidal AC residual currents as well as pulsating DC residual currents that can be produced by modern electronic equipment.
What is the breaking capacity of the DSN201E M C20 A30?
The DSN201E M C20 A30 has a 10 kA breaking capacity, providing robust protection against short-circuit fault currents.
Trusted ABB Circuit Protection
ABB DSN201E RCBOs combine residual-current and overcurrent protection in compact modular devices, providing dependable protection while helping make efficient use of space within residential, commercial and industrial electrical distribution systems.
