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2CSB804201R5630 ABB DDA804 A S-63/1 RCD Block 4P Type A Selective 1000 mA 63 A
ABB DDA804 A S-63/1 is a four-pole 63 A selective Type A residual current device block with 1000 mA sensitivity designed for coordinated earth-fault protection with compatible ABB S800 series miniature circuit breakers.
£429.72
Why Choose the ABB DDA804 A S-63/1 RCD Block?
The ABB DDA804 A S-63/1 is a selective Type A residual current device (RCD) block designed to provide earth-fault protection when assembled with compatible ABB S800 series miniature circuit breakers. With a rated current of 63 A, four-pole configuration and 1000 mA rated residual operating current, it is designed for commercial and industrial electrical distribution systems requiring coordinated residual-current protection.
As part of the ABB DDA800 series, this RCD block detects sinusoidal alternating and pulsating DC residual currents. Its selective operating characteristic incorporates an intentional tripping delay, enabling coordination with downstream instantaneous residual-current devices and helping the protective device closest to an earth fault operate first when the installation is correctly coordinated.
The DDA804 A S-63/1 supports rated voltages of 230/400, 240/415 and 400/690 V AC at 50–60 Hz. Its four-pole arrangement is suitable for three-phase systems with neutral, while its modular construction allows it to be combined with compatible ABB S800 circuit breakers to provide residual-current protection alongside overload and short-circuit protection.
Key Advantages
- Selective Type A residual-current protection for commercial and industrial installations.
- 63 A rated current for demanding electrical distribution circuits.
- 1000 mA rated residual operating current.
- Four-pole configuration suitable for three-phase systems with neutral.
- Intentional tripping delay supports selectivity with downstream instantaneous devices.
- Detects sinusoidal AC and pulsating DC residual currents.
- Designed for assembly with compatible ABB S800 series MCBs.
Key Features
- ABB DDA800 residual current device block series.
- Type A selective (S) residual-current characteristic.
- 63 A nominal current.
- 1000 mA residual-current sensitivity.
- 4-pole configuration.
- Rated voltage options of 230/400, 240/415 and 400/690 V AC.
- Rated frequency of 50–60 Hz.
- 6 kV rated impulse withstand voltage.
- 5 kA surge-current withstand capability.
- IP2X degree of protection.
- Designed in accordance with IEC/EN 60947-2 Annex B.
Reliable Selective Residual-Current Protection
Residual current device blocks monitor electrical circuits for current unintentionally flowing to earth. The ABB DDA804 A S-63/1 provides Type A detection for sinusoidal alternating and pulsating DC residual currents, making it suitable for modern commercial and industrial installations containing a wide variety of electrical and electronic loads.
The selective operating characteristic introduces an intentional tripping delay to support coordination with downstream instantaneous residual-current devices. When assembled with a compatible ABB S800 miniature circuit breaker, the DDA804 A S-63/1 complements the MCB's overload and short-circuit protection with selective residual-current protection for a coordinated electrical protection solution.
Typical Applications
- Industrial electrical distribution boards.
- Commercial power distribution systems.
- Three-phase circuits with neutral conductors.
- Machine and automation control panels.
- Industrial plant and infrastructure installations.
- Electrical systems requiring selective earth-fault protection.
- Upstream residual-current protection coordinated with downstream instantaneous devices.
Technical Specifications
| Series | DDA800 |
|---|---|
| SKU | DDA804AS631 |
| ABB order code | 2CSB804201R5630 |
| Product type | Residual current device (RCD) block |
| Residual-current type | Type A |
| Operating characteristic | Selective (S) |
| Number of poles | 4 |
| Rated current | 63 A |
| Rated residual operating current | 1000 mA |
| Rated voltage | 230/400, 240/415, 400/690 V AC |
| Rated frequency | 50–60 Hz |
| Rated insulation voltage | 690 V |
| Rated impulse withstand voltage | 6 kV |
| Surge-current withstand | 5 kA |
| Power loss | 13.5 W |
| Protection rating | IP2X |
| Operating ambient temperature | -25 to +60 °C |
| Standard | IEC/EN 60947-2 Annex B |
| Product group | S800 / S800P / S750 MCB |
| Dimensions (W × H × D) | 117 × 108.2 × 82.3 mm |
| Weight | 0.46 kg |
| EAN | 8012542926504 |
Frequently Asked Questions
What is the ABB DDA804 A S-63/1 used for?
The DDA804 A S-63/1 is a four-pole selective Type A RCD block designed to provide residual-current protection when assembled with a compatible ABB S800 series miniature circuit breaker.
What is the rated current of the DDA804 A S-63/1?
The ABB DDA804 A S-63/1 has a rated current of 63 A.
What residual-current sensitivity does this RCD block have?
The DDA804 A S-63/1 has a rated residual operating current of 1000 mA, equivalent to 1 A.
What does the selective Type A characteristic mean?
Type A protection detects sinusoidal alternating and pulsating DC residual currents, while the selective characteristic introduces an intentional tripping delay to support coordination with downstream instantaneous residual-current devices.
Where is the ABB DDA804 A S-63/1 typically used?
It is typically used in commercial and industrial distribution systems where selective earth-fault protection is required, particularly on three-phase circuits with neutral and installations containing downstream instantaneous residual-current devices.
Trusted Selective Protection from ABB
ABB DDA800 residual current device blocks provide dependable earth-fault protection for commercial and industrial electrical systems, with selective Type A variants supporting coordinated protection alongside compatible S800 series miniature circuit breakers.
