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2CSB803101R3630 ABB DDA803 A-63/0.3 RCD Block 63 A 3P Type A 300 mA
ABB DDA803 A-63/0.3 is a 63 A three-pole Type A residual current device block with 300 mA residual current sensitivity for use with compatible ABB S800 miniature circuit-breakers.
£328.02
Why Choose the ABB DDA803 A-63/0.3 RCD Block?
The ABB DDA803 A-63/0.3 is a three-pole Type A residual current device (RCD) block designed for combination with compatible ABB S800 miniature circuit-breakers. As part of the ABB DDA 800 series, it provides residual current protection for three-pole electrical distribution circuits in commercial and industrial installations.
Its Type A residual current characteristic provides detection of sinusoidal alternating residual currents and pulsating direct residual currents. This makes the DDA803 A-63/0.3 suitable for modern electrical installations containing electronic equipment and other loads capable of producing pulsating DC earth leakage currents.
With a rated current of 63 A, a rated residual operating current of 300 mA and a three-pole configuration, the DDA803 A-63/0.3 provides dependable earth fault protection for compatible distribution circuits. When assembled with a suitable ABB S800 MCB, it complements the circuit-breaker's overload and short-circuit protection with residual current protection.
Key Advantages
- Dependable Type A residual current protection for electrical distribution systems.
- 63 A rated current for commercial and industrial circuits.
- 300 mA rated residual operating current for earth fault protection.
- Three-pole configuration for compatible three-pole distribution applications.
- Detects sinusoidal AC and pulsating DC residual currents.
- Designed for combination with compatible ABB S800 miniature circuit-breakers.
- Combined installation provides residual current protection alongside MCB overload and short-circuit protection.
Key Features
- ABB DDA 800 residual current device block series.
- 63 A rated current.
- 300 mA residual current sensitivity.
- Three-pole configuration.
- Type A residual current characteristic.
- Detection of sinusoidal alternating and pulsating direct residual currents.
- Designed for use with compatible ABB S800 MCBs.
- Suitable for three-pole electrical distribution circuits.
- Suitable for commercial and industrial electrical installations.
- Designed for coordinated residual current and overcurrent protection when assembled with a compatible MCB.
Reliable Residual Current Protection for Three-Pole Distribution
Residual current protection monitors the balance of current flowing through the live conductors of an electrical circuit. When an earth leakage fault creates an imbalance above the specified operating threshold, the protective assembly disconnects the affected circuit. The ABB DDA803 A-63/0.3 provides Type A detection for both sinusoidal alternating residual currents and pulsating direct residual currents.
The DDA 800 series is designed for combination with compatible ABB S800 miniature circuit-breakers. When correctly assembled, the DDA803 A-63/0.3 adds 300 mA residual current protection to the overload and short-circuit protection provided by the associated MCB, creating an integrated protection solution for three-pole electrical distribution circuits.
Typical Applications
- Commercial three-pole electrical distribution systems.
- Industrial electrical installations.
- Distribution boards using compatible ABB S800 miniature circuit-breakers.
- Three-pole circuits requiring 63 A rated residual current protection.
- Circuits requiring detection of AC and pulsating DC earth fault currents.
- Electrical distribution systems requiring combined residual current and overcurrent protection.
Technical Specifications
| Series | DDA 800 |
|---|---|
| Product group | S800 / S800P / S750 MCB |
| Order code | 2CSB803101R3630 |
| Product type | Residual current device (RCD) block |
| Residual current type | Type A |
| Number of poles | 3 |
| Rated current | 63 A |
| Rated residual operating current | 300 mA |
| MCB compatibility | Compatible ABB S800 miniature circuit-breakers |
| Application | Residual current protection for three-pole electrical distribution circuits |
Frequently Asked Questions
What is the ABB DDA803 A-63/0.3 used for?
The ABB DDA803 A-63/0.3 is a three-pole Type A residual current device block designed for combination with compatible ABB S800 MCBs to provide residual current protection in electrical distribution systems.
What is the rated current of the DDA803 A-63/0.3?
The DDA803 A-63/0.3 has a rated current of 63 A.
What is the residual current sensitivity of the ABB DDA803 A-63/0.3?
The DDA803 A-63/0.3 has a rated residual operating current of 300 mA.
What does Type A mean on the DDA803 A-63/0.3?
Type A means the RCD block is designed to detect sinusoidal alternating residual currents and pulsating direct residual currents, providing protection for circuits containing a broad range of modern electrical equipment.
Which circuit-breakers can the ABB DDA803 A-63/0.3 be used with?
The DDA803 A-63/0.3 is designed for combination with compatible ABB S800 miniature circuit-breakers, adding residual current protection to the overload and short-circuit protection provided by the associated MCB.
Trusted ABB Residual Current Protection
ABB DDA 800 residual current blocks are designed for combination with compatible S800 miniature circuit-breakers, providing dependable Type A residual current protection for demanding commercial and industrial electrical distribution applications.
