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2CSR275080R3205 ABB DS201MB20AC300 DS201 M B20 AC300 1P+N 20 A 300 mA Type AC RCBO
ABB DS201MB20AC300 (DS201 M B20 AC300) is a 1P+N 20 A Type AC RCBO with B-curve overcurrent protection, 300 mA residual current sensitivity and 10 kA rated short-circuit capacity.
£125.98
Why Choose the ABB DS201MB20AC300 RCBO?
The ABB DS201MB20AC300, manufacturer type DS201 M B20 AC300, is a compact 1P+N residual current circuit breaker with overcurrent protection (RCBO) designed to provide combined protection against overloads, short circuits and earth leakage faults. As part of the ABB DS200 / DS201 M series, it integrates residual current and overcurrent protection within a single DIN-rail device for single-phase electrical circuits.
This RCBO has a rated current of 20 A, a Type B tripping characteristic and a rated residual operating current of 300 mA. Its Type AC residual current characteristic is designed to detect sinusoidal alternating residual currents, providing earth leakage protection for suitable conventional AC electrical loads.
With a rated voltage of 230 V AC and a rated short-circuit capacity of 10 kA, the DS201 M B20 AC300 provides robust protection for suitable single-phase low-voltage distribution applications. Its 1P+N configuration combines overcurrent and residual current protection in one device, helping simplify distribution board design and installation.
Key Advantages
- Combined residual current and overcurrent protection in one RCBO.
- 20 A rated current for suitable single-phase circuits.
- 300 mA residual current sensitivity for earth leakage protection.
- Type AC residual current detection for sinusoidal alternating residual currents.
- Type B tripping characteristic suited to circuits with relatively low inrush currents.
- 10 kA rated short-circuit capacity for robust fault protection.
- Compact 1P+N configuration for single-phase distribution systems.
- DIN-rail mounting for straightforward integration into electrical distribution boards.
Key Features
- ABB DS201 M RCBO series.
- 1P+N configuration for single-phase circuits.
- 20 A rated current.
- 300 mA rated residual operating current.
- Type AC residual current characteristic.
- B-curve overcurrent characteristic.
- 230 V AC rated voltage.
- 50/60 Hz rated frequency.
- 10 kA rated short-circuit capacity.
- DIN-rail format for installation in electrical distribution assemblies.
Reliable Combined Circuit Protection
An RCBO combines residual current protection with overload and short-circuit protection in a single device. The ABB DS201 M B20 AC300 monitors the protected circuit for sinusoidal alternating earth leakage currents while also disconnecting the circuit when excessive current occurs because of an overload or short circuit.
The 300 mA residual current sensitivity provides earth leakage protection for applications where this operating threshold is specified, while the B-curve overcurrent characteristic is suited to circuits where substantial starting currents are not normally expected. This combination makes the DS201 M B20 AC300 suitable for appropriately designed single-phase circuits requiring coordinated residual current and overcurrent protection.
Typical Applications
- Commercial electrical distribution boards.
- Industrial single-phase distribution and auxiliary circuits.
- Control and building services circuits.
- General-purpose circuits with relatively low inrush currents.
- Circuits specified for 300 mA residual current protection.
- Installations requiring combined overload, short-circuit and earth leakage protection.
Technical Specifications
| Series | DS201 M |
|---|---|
| SKU | DS201MB20AC300 |
| ABB order code | 2CSR275080R3205 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Configuration | 1P+N |
| Total number of poles | 2 |
| Rated current | 20 A |
| Tripping characteristic | Type B |
| Residual current type | Type AC |
| Rated residual operating current | 300 mA |
| Rated voltage | 230 V AC |
| Rated frequency | 50/60 Hz |
| Rated short-circuit capacity (Icn) | 10 kA |
| Rated insulation voltage (Ui) | 500 V |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Mounting type | DIN rail |
| Reference standard | IEC/EN 61009-1 |
Frequently Asked Questions
What is the ABB DS201MB20AC300 used for?
The ABB DS201MB20AC300 is a 1P+N RCBO designed to protect suitable single-phase circuits against overloads, short circuits and sinusoidal AC earth leakage currents.
What is the rated current of the DS201 M B20 AC300?
The RCBO has a rated current of 20 A with a Type B tripping characteristic.
What residual current sensitivity does this RCBO provide?
The DS201 M B20 AC300 has a rated residual operating current of 300 mA and uses Type AC residual current detection.
What is the short-circuit capacity of the ABB DS201MB20AC300?
The RCBO has a rated short-circuit capacity of 10 kA, providing robust protection against short-circuit faults in suitable electrical installations.
Where is the DS201 M B20 AC300 typically installed?
The RCBO is designed for DIN-rail installation in electrical distribution boards protecting suitable single-phase circuits requiring combined overcurrent and 300 mA residual current protection.
Trusted ABB Circuit Protection
ABB DS201 M RCBOs combine residual current, overload and short-circuit protection in compact DIN-rail devices engineered for dependable protection of low-voltage single-phase electrical circuits.
