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2CSB204001R5400 ABB DDA204 AC-40/1 RCD Block 4P 40A 1000mA
ABB DDA204 AC-40/1 is a four-pole 40 A AC type RCD block with 1000 mA residual-current sensitivity, designed for assembly with compatible ABB miniature circuit breakers.
£83.50
Why Choose the ABB DDA204 AC-40/1 RCD Block?
The ABB DDA204 AC-40/1 is a four-pole AC type residual current device (RCD) block designed for assembly with compatible ABB miniature circuit breakers. As part of the ABB DDA200 RCD block series, it provides residual-current protection for electrical distribution systems in commercial, industrial and building applications.
This RCD block is designed to detect sinusoidal alternating residual currents. Its 1000 mA (1 A) rated residual operating current makes it suitable for circuits specified for earth leakage and fault protection at this sensitivity, helping protect electrical installations against the effects of insulation faults and unintended current flow to earth.
With a 40 A rated current and four-pole configuration, the DDA204 AC-40/1 is intended for multi-pole circuits requiring AC type residual-current protection. When correctly combined with a compatible ABB miniature circuit breaker, the assembly provides residual-current protection alongside the MCB's overcurrent and short-circuit protection.
Key Advantages
- Four-pole RCD block for multi-pole electrical circuits.
- 40 A rated current for compatible ABB circuit protection assemblies.
- 1000 mA (1 A) rated residual operating current.
- AC type residual-current detection for sinusoidal alternating earth fault currents.
- Designed for combination with compatible ABB miniature circuit breakers.
- Modular construction supports organised electrical distribution and control panel installations.
Key Features
- ABB DDA200 RCD block series.
- Four-pole configuration.
- 40 A rated current.
- 1000 mA rated residual operating current.
- AC type residual-current characteristic.
- Detection of sinusoidal alternating residual currents.
- Modular design for combination with compatible ABB MCBs.
- Suitable for DIN-rail modular electrical distribution assemblies.
Reliable Residual-Current Protection for Electrical Installations
Residual current devices monitor the balance of current flowing through the active conductors of an electrical circuit. If an insulation fault or another leakage path causes current to flow to earth, the resulting imbalance can be detected so that the protected circuit is disconnected when the RCD block is correctly combined with its compatible circuit breaker.
The ABB DDA200 series provides a modular method of adding residual-current functionality to compatible miniature circuit breakers. The DDA204 AC-40/1 combines a 40 A current rating with 1 A AC type residual-current sensitivity, providing a practical solution for distribution circuits specified for these protection characteristics.
Typical Applications
- Commercial electrical distribution boards.
- Industrial electrical distribution systems.
- Machinery and control panel power distribution.
- Four-pole circuits requiring 1 A residual-current protection.
- Circuits requiring detection of sinusoidal AC earth leakage currents.
- ABB modular circuit protection assemblies.
Technical Specifications
| Series | DDA200 |
|---|---|
| ABB order code | 2CSB204001R5400 |
| Product type | Residual current device (RCD) block |
| Residual-current type | AC |
| Number of poles | 4 |
| Rated current | 40 A |
| Rated residual operating current | 1000 mA (1 A) |
| Rated frequency | 50–60 Hz |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 4 kV |
| Applicable standard | IEC/EN 61009 Annex G |
| Mounting | DIN rail as part of a compatible modular circuit protection assembly |
Frequently Asked Questions
What is the ABB DDA204 AC-40/1 used for?
It is a four-pole RCD block designed to provide residual-current protection when assembled with a compatible ABB miniature circuit breaker.
What is the rated current of the DDA204 AC-40/1?
The ABB DDA204 AC-40/1 has a rated current of 40 A.
What residual-current sensitivity does this RCD block provide?
It has a rated residual operating current of 1000 mA (1 A).
What type of residual current does the DDA204 AC-40/1 detect?
This is an AC type RCD block designed to detect sinusoidal alternating residual currents.
Is the ABB DDA204 AC-40/1 a complete circuit breaker?
No. It is an RCD block intended for combination with a compatible ABB miniature circuit breaker, allowing residual-current protection to operate alongside the MCB's overcurrent and short-circuit protection.
Trusted ABB Circuit Protection
ABB DDA200 residual current device blocks provide a modular solution for integrating residual-current protection with compatible miniature circuit breakers in commercial, industrial and building electrical distribution systems.
