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2TAZ265114R2201 ABB DSN201E M B20 A30 RCBO Type A 1P+N 30mA 20A
ABB DSN201E M B20 A30 is a compact 20 A 1P+N Type A RCBO with B-curve overcurrent protection, 30 mA residual-current sensitivity and 10 kA breaking capacity.
£144.64
Why Choose the ABB DSN201E M B20 A30 RCBO?
The ABB DSN201E M B20 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 protection against sinusoidal AC and pulsating DC residual currents. Its 30 mA rated residual operating current provides additional protection against electric shock, while the switched neutral enhances circuit isolation and protection.
With a rated current of 20 A, B tripping characteristic and 10 kA breaking capacity, the DSN201E M B20 A30 provides dependable protection for final circuits with relatively low inrush currents. Its compact 17.8 mm width occupies just one module on a DIN rail, helping maximise available space inside 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.
- B-curve tripping characteristic suitable for circuits with relatively low inrush currents.
- 10 kA breaking capacity for robust short-circuit protection.
- Space-saving 1P+N single-module design with switched neutral.
- Supply connection from either the top or bottom for flexible installation.
Key Features
- ABB DSN201E M RCBO series.
- 20 A rated current.
- B tripping characteristic.
- Type A residual-current protection.
- 30 mA rated residual operating current.
- 10 kA breaking capacity.
- 1P+N configuration with switched neutral.
- Combined overload, short-circuit and residual-current protection.
- 17.8 mm single-module width for space-efficient installations.
- DIN-rail mounting with vertical or horizontal mounting capability.
Compact Combined Circuit Protection
An RCBO combines residual-current and overcurrent protection within a single device. The ABB DSN201E M B20 A30 therefore protects its connected circuit against overload and short-circuit conditions while simultaneously monitoring for potentially hazardous residual currents to earth, reducing the need for separate protective devices.
The DSN201E series is designed as a compact 1P+N solution with switched neutral. Its Type A residual-current characteristic provides protection against sinusoidal AC and pulsating DC earth fault currents, while the 30 mA sensitivity provides additional protection against electric shock in suitable installations.
Typical Applications
- Residential electrical distribution boards.
- Commercial building final circuits.
- Lighting and general-purpose power circuits.
- Circuits supplying electronic equipment capable of producing pulsating DC residual currents.
- Industrial distribution and control panels.
- Space-constrained modular electrical enclosures.
Technical Specifications
| Series | DSN201E M |
|---|---|
| SKU | DSN201EMB20A30 |
| ABB order code | 2TAZ265114R2201 |
| EAN | 6941593498734 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Rated current | 20 A |
| Tripping characteristic | B curve |
| Residual-current type | Type A |
| Rated residual operating current | 30 mA |
| Breaking capacity | 10 kA |
| Number of poles | 1P+N |
| Neutral | Switched |
| Standards | IEC 61009-1; IEC 61009-2-2; AS/NZS 61009.1 |
| Protection rating | IP40 housing / IP20 terminals |
| Mounting type | 35 mm DIN rail |
| Mounting position | Vertical or horizontal |
| Supply connection | Top or bottom |
| Dimensions (H × D × W) | 86 × 70 × 17.8 mm |
| Weight | 0.119 kg |
| Ambient operating temperature | -25 to +55 °C |
| Storage temperature | -25 to +70 °C |
| Electrical endurance | 10,000 cycles |
| Mechanical endurance | 20,000 cycles |
Frequently Asked Questions
What is the ABB DSN201E M B20 A30 used for?
This RCBO provides combined overload, short-circuit and residual-current protection for 1P+N electrical circuits in residential, commercial and industrial installations.
What is the rated current of this RCBO?
The ABB DSN201E M B20 A30 has a rated current of 20 A with a B-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 respond to sinusoidal AC residual currents as well as pulsating DC residual currents that can be produced by electronic equipment.
How much space does the DSN201E M B20 A30 require?
The RCBO is 17.8 mm wide, occupying a single module on a 35 mm DIN rail and helping maximise available space inside electrical distribution boards.
Trusted ABB Circuit Protection
ABB DSN201E RCBOs combine residual-current and overcurrent protection in compact modular devices, providing dependable circuit protection while helping make efficient use of space within residential, commercial and industrial electrical distribution systems.
