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.
2CSR255488R1205 ABB DS201T B20 APR30 RCBO 1P+N 20A 30mA 6kA
ABB DS201T B20 APR30 is a 1P+N 20 A B-curve APR RCBO with 30 mA residual-current sensitivity and 6 kA short-circuit breaking capacity for combined residual-current and overcurrent circuit protection.
£302.15
Why Choose the ABB DS201T B20 APR30 RCBO?
The ABB DS201T B20 APR30 is a compact and dependable 1P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect single-phase electrical circuits against overloads, short circuits and residual earth fault currents. As part of the ABB DS200 / DSH200 RCBO family, it combines multiple protective functions in a single modular device for efficient electrical distribution and circuit protection.
This RCBO combines overcurrent and residual-current protection in one DIN-rail device, reducing the need for separate protective components. Its APR residual-current characteristic provides enhanced immunity to unwanted tripping caused by transient disturbances while maintaining reliable residual-current protection, helping improve continuity of service.
With a rated current of 20 A, a B tripping characteristic, 30 mA residual-current sensitivity and a 6 kA rated short-circuit breaking capacity, the DS201T B20 APR30 provides comprehensive protection for suitable single-phase final circuits. Its 1P+N configuration switches phase and neutral while providing overcurrent protection on the phase conductor.
Key Advantages
- Combines residual-current, overload and short-circuit protection in one device.
- 20 A rated current for single-phase circuit protection.
- B tripping characteristic suited to circuits with relatively low inrush currents.
- 30 mA residual-current sensitivity for additional protection against electric shock.
- 6 kA rated short-circuit breaking capacity.
- APR characteristic provides enhanced resistance to unwanted tripping.
Key Features
- ABB DS201T RCBO series.
- 1P+N configuration.
- 20 A rated current.
- B tripping characteristic.
- 30 mA rated residual operating current.
- APR residual-current characteristic for improved continuity of service.
- 6 kA rated short-circuit breaking capacity.
- Combined residual-current and overcurrent protection.
- Compact DIN-rail mounting for modular distribution systems.
Reliable Combined Circuit Protection
RCBOs combine the functions of a miniature circuit breaker and a residual-current protective device. They disconnect the protected circuit when excessive current occurs because of an overload or short circuit and also detect residual earth leakage, providing comprehensive protection within a single modular device.
The ABB DS201T B20 APR30 combines a B-curve overcurrent characteristic with APR residual-current protection. The APR design offers increased immunity to transient disturbances, helping reduce unnecessary interruptions while retaining the required residual-current protection for the connected circuit.
Typical Applications
- Single-phase final circuits.
- Electrical distribution boards.
- Control and auxiliary circuits.
- Resistive electrical loads.
- Commercial and industrial electrical installations.
- Circuits requiring combined overcurrent and residual-current protection.
Technical Specifications
| Series | DS201T |
|---|---|
| Product group | DS200 / DSH200 RCBO |
| ABB order code | 2CSR255488R1205 |
| 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 | B |
| Rated residual current | 30 mA |
| Residual-current characteristic | APR |
| Rated short-circuit breaking capacity | 6 kA |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB DS201T B20 APR30 used for?
It is an RCBO used to protect single-phase circuits against overloads, short circuits and residual earth fault currents.
What is the rated current of the DS201T B20 APR30?
The RCBO has a rated current of 20 A and uses a B tripping characteristic.
What residual-current sensitivity does this RCBO provide?
The DS201T B20 APR30 has a rated residual operating current of 30 mA.
What does the APR characteristic mean?
The APR characteristic provides enhanced immunity to unwanted tripping caused by transient disturbances while maintaining residual-current protection.
What is the breaking capacity of the ABB DS201T B20 APR30?
The DS201T B20 APR30 has a rated short-circuit breaking capacity of 6 kA.
Trusted ABB Circuit Protection
ABB DS201T RCBOs combine residual-current and overcurrent protection in compact modular devices, helping provide dependable electrical safety, efficient distribution-board installation and continuity of service in demanding electrical applications.
