Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CSR275151R1204 ABB DSE201 M C20 A30 20 A 30 mA Type A 10 kA RCBO
ABB DSE201 M C20 A30 is a 1P+N 20 A C-curve Type A RCBO with 30 mA residual-current sensitivity and 10 kA short-circuit breaking capacity for combined circuit protection.
£70.10
Why Choose the ABB DSE201 M C20 A30 RCBO?
The ABB DSE201 M C20 A30 is a compact 1P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect single-phase circuits against overloads, short circuits and residual earth fault currents. Part of the ABB DSE201 M 10 kA RCBO series, it combines residual-current and overcurrent protection within a single modular device for efficient electrical distribution installations.
This RCBO has a 20 A rated current, C tripping characteristic and 30 mA Type A residual-current sensitivity. Type A protection detects sinusoidal AC residual currents as well as pulsating DC residual currents, while the C-curve characteristic is suitable for circuits with moderate inrush currents.
With a rated operational voltage of 230–240 V AC and a rated short-circuit breaking capacity of 10 kA, the DSE201 M C20 A30 provides robust combined protection in a compact DIN-rail format. ABB order code 2CSR275151R1204 identifies this specific 20 A, C-curve, Type A 30 mA version.
Key Advantages
- Combines overload, short-circuit and residual-current protection in one RCBO.
- 20 A C-curve characteristic suitable for circuits with moderate inrush currents.
- 30 mA Type A residual-current protection for additional protection against electric shock and earth faults.
- Detects sinusoidal AC and pulsating DC residual currents.
- 10 kA short-circuit breaking capacity for robust circuit protection.
- Compact 1P+N modular construction helps conserve distribution-board space.
Key Features
- ABB DSE201 M 10 kA RCBO series.
- 20 A rated current.
- C tripping characteristic.
- 30 mA rated residual operating current.
- Type A residual-current detection.
- 1P+N configuration with one protected pole.
- 230–240 V AC rated voltage.
- 10 kA breaking capacity.
- DIN-rail mounting for modular electrical distribution systems.
- Combined residual-current and overcurrent protection in a single device.
Reliable Combined Protection for Electrical Circuits
An RCBO combines the functions of a miniature circuit breaker and a residual-current protective device. The ABB DSE201 M C20 A30 disconnects the protected circuit in response to overload or short-circuit conditions while also detecting residual currents caused by earth faults.
Its 30 mA Type A residual-current protection detects both sinusoidal AC and pulsating DC residual currents and provides additional protection against electric shock, while the C tripping characteristic accommodates moderate starting and inrush currents. This combination provides dependable residual-current and overcurrent protection in a compact modular device.
Typical Applications
- Commercial electrical distribution systems.
- Industrial electrical distribution boards.
- Circuits supplying electronic equipment capable of producing pulsating DC residual currents.
- Lighting and general electrical loads where a 20 A C-curve device is appropriate.
- Control panels and machinery auxiliary circuits.
- Electrical installations requiring combined overcurrent and 30 mA Type A residual-current protection.
Technical Specifications
| Series | DSE201 M |
|---|---|
| ABB order code | 2CSR275151R1204 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 1P+N |
| Number of protected poles | 1 |
| Rated current | 20 A |
| Tripping characteristic | C |
| Residual-current type | Type A |
| Rated residual current | 30 mA |
| Rated voltage | 230–240 V AC |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 4 kV |
| Rated short-circuit breaking capacity | 10 kA |
| Current limiting class | 3 |
| Pollution degree | 2 |
| Overvoltage category | III |
| Operating ambient temperature | −25 to +55 °C |
| Mounting type | DIN rail |
| Width | approx. 17.6–18 mm |
| Height | approx. 115 mm |
| Depth | approx. 68.9–69 mm |
| Weight | approx. 0.20 kg |
| Standards | IEC 61009-1, IEC 61009-2-2, BS EN 61009-1 |
Frequently Asked Questions
What is the ABB DSE201 M C20 A30 used for?
It is an RCBO designed to protect single-phase circuits against overloads, short circuits and residual earth fault currents.
What is the current rating of the DSE201 M C20 A30?
The RCBO has a rated current of 20 A with a C tripping characteristic.
What residual-current sensitivity does this RCBO provide?
The DSE201 M C20 A30 has a rated residual operating current of 30 mA and uses Type A residual-current detection.
What residual currents can a Type A RCBO detect?
Type A protection detects sinusoidal alternating residual currents and pulsating DC residual currents, making it suitable for many circuits containing modern electronic loads.
What is the ABB order code for the DSE201 M C20 A30?
The ABB order code is 2CSR275151R1204.
Trusted ABB Circuit Protection
ABB DSE201 M RCBOs combine residual-current, overload and short-circuit protection in a compact modular format for reliable commercial and industrial electrical distribution.
