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2CSR255080R3205 ABB DS201B20AC300 RCBO 1P+N Type B 20 A 300 mA 6 kA
ABB DS201B20AC300 is a 1P+N Type AC RCBO with a 20 A Type B characteristic, 300 mA residual-current sensitivity and 6 kA rated short-circuit capacity for combined earth-fault and overcurrent protection.
£91.58
Why Choose the ABB DS201B20AC300 RCBO?
The ABB DS201B20AC300 is a compact and reliable 1P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect single-phase final circuits against overloads, short circuits and sinusoidal AC earth leakage currents. As part of the ABB DS201 series, it combines residual-current and overcurrent protection in a two-module device for efficient electrical distribution and circuit protection.
This RCBO features a Type B tripping characteristic, a rated current of 20 A and Type AC residual-current detection. Its 300 mA rated residual operating current provides earth-fault protection for applications where this sensitivity is specified, while the integrated thermal-magnetic protection safeguards conductors and connected equipment against overload and short-circuit conditions.
With a rated short-circuit capacity of 6 kA and a rated operational voltage of 240 V AC, the DS201B20AC300 is suited to single-phase electrical distribution systems in residential, commercial and industrial installations. Its compact DIN-rail format helps reduce panel space while combining two essential protective functions within one device.
Key Advantages
- Combines residual-current and overcurrent protection in one compact RCBO.
- 20 A rated current with Type B tripping characteristic.
- 300 mA residual-current sensitivity for earth-fault protection.
- Type AC residual-current detection for sinusoidal alternating fault currents.
- 6 kA rated short-circuit capacity for dependable circuit protection.
- Compact 1P+N two-module design for DIN-rail distribution boards.
Key Features
- ABB DS201 RCBO series.
- 1P+N configuration.
- 20 A rated current.
- Type B tripping characteristic.
- Type AC residual-current protection.
- 300 mA rated residual operating current.
- 6 kA rated short-circuit capacity (Icn).
- Designed in accordance with IEC/EN 61009-1 and IEC/EN 61009-2-1.
Combined Residual-Current and Overcurrent Protection
RCBOs such as the ABB DS201 combine the functions of a miniature circuit breaker and residual-current protective device. This enables a single device to protect a circuit against overload and short-circuit currents while also detecting earth leakage caused by sinusoidal alternating residual currents.
The DS201 series is designed for final-circuit protection in compact electrical distribution systems. By integrating both protective functions into a two-module DIN-rail device, it simplifies panel design and provides dedicated protection for individual circuits.
Typical Applications
- Single-phase electrical distribution circuits.
- Residential and commercial distribution boards.
- Industrial control and auxiliary circuits.
- Building electrical installations.
- Final circuits requiring combined overload, short-circuit and earth-fault protection.
- DIN-rail electrical panels and consumer units.
Technical Specifications
| Series | DS201 |
|---|---|
| ABB order code | 2CSR255080R3205 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 1P+N |
| Rated current | 20 A |
| Tripping characteristic | B |
| Residual-current type | Type AC |
| Rated residual operating current | 300 mA |
| Rated operational voltage | 240 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit capacity (Icn) | 6 kA |
| Rated ultimate short-circuit breaking capacity (Icu) | 10 kA |
| Rated insulation voltage (Ui) | 500 V |
| Protection rating | IP20 / IP40 |
| Standards | IEC/EN 61009-1, IEC/EN 61009-2-1 |
| Dimensions (W × H × D) | 35 × 85 × 69 mm |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB DS201B20AC300 used for?
The ABB DS201B20AC300 provides combined overload, short-circuit and residual-current protection for single-phase electrical circuits.
What is the rated current of the DS201B20AC300?
The RCBO has a rated current of 20 A and uses a Type B tripping characteristic.
What residual-current sensitivity does this RCBO provide?
The DS201B20AC300 has a rated residual operating current of 300 mA and provides Type AC residual-current detection.
What is the short-circuit rating of the DS201B20AC300?
The device has a rated short-circuit capacity (Icn) of 6 kA.
Which standards does the ABB DS201B20AC300 comply with?
The DS201B20AC300 is designed in accordance with IEC/EN 61009-1 and IEC/EN 61009-2-1 standards for RCBOs.
Trusted ABB Circuit Protection
ABB DS201 RCBOs provide compact combined residual-current and overcurrent protection for electrical distribution systems, helping protect circuits against overloads, short circuits and earth-fault currents.
