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DSN201E C25 A30 Residual Current Circuit Breaker with Overcurrent Protection
ABB DSN201E C25 A30 compact electronic RCBO featuring a 25 A current rating, Type A 30 mA residual current protection, C curve tripping characteristic and 6 kA breaking capacity.
Why Choose the ABB DSN201E C25 A30 RCBO?
The ABB DSN201E C25 A30 is a compact residual current circuit breaker with overcurrent protection (RCBO) designed to provide reliable protection for single-phase electrical circuits against overloads, short circuits and earth leakage faults. As part of the proven ABB DSN201E series, it combines multiple protective functions within a space-saving single-module device, making it ideal for residential, commercial and light industrial installations.
Featuring a C tripping characteristic and Type A residual current protection, the DSN201E C25 A30 detects both sinusoidal AC and pulsating DC residual currents generated by modern electronic equipment. The switched neutral design improves safety while the compact construction allows efficient installation within consumer units and distribution boards.
With a rated current of 25 A, a residual operating current of 30 mA and a 6 kA breaking capacity, the ABB DSN201E C25 A30 delivers dependable protection for socket outlets, lighting circuits and other final circuits requiring combined overcurrent and earth leakage protection.
Key Advantages
- Combined residual current and overcurrent protection in one compact device.
- 25 A rated current suitable for higher-load final circuits.
- 30 mA residual current sensitivity for additional protection against electric shock.
- Type A protection detects AC and pulsating DC residual currents.
- 6 kA short-circuit breaking capacity.
- Compact single-module width saves valuable distribution board space.
Key Features
- ABB DSN201E electronic RCBO series.
- 25 A rated current.
- 1P+N switched neutral configuration.
- C curve tripping characteristic.
- Type A residual current protection.
- 30 mA rated residual operating current.
- 6 kA breaking capacity.
- One-module DIN rail mounted design.
Reliable Circuit and Earth Leakage Protection
The ABB DSN201E C25 A30 combines miniature circuit breaker and residual current protection into one compact unit. It disconnects the electrical supply whenever overloads, short circuits or earth leakage faults occur, helping protect both users and electrical installations.
Its Type A residual current detection makes it suitable for modern electrical systems containing electronic equipment, while the switched neutral enhances isolation and improves installation safety during maintenance.
Typical Applications
- Residential consumer units.
- Commercial distribution boards.
- Socket outlet circuits.
- Kitchen and utility circuits.
- Retail and office installations.
- Circuits supplying electronic equipment.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole + N | |
| Device Type | RCBO | |
| Trip Curve | C curve | |
| Breaking Capacity | 6 kA | |
| Residual Current | 30 mA | |
| RCD Type | Type A | |
| Manufacturer | ABB | |
| Series | DSN201E | |
| Model | DSN201E C25 A30 | |
| Product ID | 2CDB352501R1254 | |
| EAN | 4022903005230 | |
| Product type | Residual Current Circuit Breaker with Overcurrent Protection (RCBO) | |
| Rated current | 25 A | |
| Number of poles | 1P+N | |
| Number of protected poles | 1 | |
| Neutral conductor | Switched | |
| Tripping characteristic | C Curve | |
| Residual current type | Type A | |
| Rated residual operating current | 30 mA | |
| Rated operational voltage | 230 / 240 V AC | |
| Frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity | 6 kA | |
| Rated insulation voltage | 500 V | |
| Rated impulse withstand voltage | 4 kV | |
| Dielectric test voltage | 2.5 kV | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Module width | 1 module | |
| Terminal type | Cage screw terminals | |
| Standards | IEC/EN 61009-1, IEC 61009-2-2, AS/NZS 61009.1 | |
| Dimensions (H × W × D) | approx. 86 × 17.8 × 70 mm | |
| Weight | approx. 0.113 kg |
Frequently Asked Questions
What is the ABB DSN201E C25 A30 used for?
The DSN201E C25 A30 protects single-phase electrical circuits against overloads, short circuits and earth leakage faults.
What is the rated current of this RCBO?
The ABB DSN201E C25 A30 has a 25 A rated current.
What residual current sensitivity does it provide?
This RCBO provides a 30 mA residual operating current, helping provide additional protection against electric shock.
What does Type A residual current protection detect?
Type A protection detects both sinusoidal AC and pulsating DC residual currents generated by many modern electronic devices.
How much installation space does the RCBO require?
The DSN201E C25 A30 occupies just one DIN rail module, making it ideal where distribution board space is limited.
Trusted Protection for Modern Electrical Installations
ABB DSN201E RCBOs are trusted by electricians, panel builders and maintenance professionals for delivering dependable overload, short-circuit and residual current protection in compact electrical installations.
