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2CSB803201R5000 ABB DDA803 A S-100/1 100 A 3-Pole Type A Selective 1000 mA Residual Current Device
ABB DDA803 A S-100/1 is a 100 A three-pole Type A selective residual current device with 1000 mA rated residual operating current for coordinated earth-leakage protection in compatible electrical distribution installations.
£609.41
Why Choose the ABB DDA803 A S-100/1 Residual Current Device?
The ABB DDA803 A S-100/1 is a three-pole selective residual current device (RCD) designed to provide residual-current protection in electrical distribution installations. Rated at 100 A with a 1000 mA residual operating current, this Type A selective device is intended for applications requiring coordinated earth-leakage protection.
As part of ABB's DDA800 range, the DDA803 A S-100/1 provides residual-current functionality for compatible S800 high-performance circuit-breaker installations. Its Type A characteristic enables detection of sinusoidal alternating and pulsating direct residual currents, while the selective characteristic supports coordination with suitable downstream residual-current protective devices.
The combination of a three-pole configuration, 100 A rated current, 1000 mA sensitivity and Type A selective characteristic makes this model suitable for compatible commercial and industrial distribution applications where residual-current coordination is required. ABB order code 2CSB803201R5000 identifies this specific DDA803 variant.
Key Advantages
- 1000 mA rated residual operating current for residual-current protection.
- 100 A rated current for higher-current distribution applications.
- Three-pole configuration for compatible three-phase circuits.
- Type A selective residual-current characteristic.
- Detection of sinusoidal AC and pulsating DC residual currents.
- Selective operation supports coordination with suitable downstream residual-current devices.
- Designed to complement overcurrent protection in compatible ABB S800 installations.
- Supports coordinated residual-current protection in electrical distribution equipment.
Key Features
- ABB DDA803 residual current device.
- 100 A rated current.
- 1000 mA rated residual operating current.
- Three-pole design.
- Type A selective characteristic.
- Responds to sinusoidal AC and pulsating DC residual currents.
- Selective residual-current operation for coordinated protection applications.
- Designed for use with the corresponding compatible ABB S800 circuit-breaker system.
- Provides earth-leakage fault detection as part of a correctly configured protective assembly.
Reliable Selective Residual-Current Protection for Three-Phase Distribution
Residual-current protection monitors the balance of current flowing through a circuit and responds when leakage to earth exceeds the device's operating threshold. With a rated residual operating current of 1000 mA, the ABB DDA803 A S-100/1 provides residual-current fault detection for compatible three-phase electrical distribution systems requiring a Type A selective device.
The selective characteristic is intended to support coordination between residual-current protective devices at different levels of an installation, helping a suitable downstream device clear a downstream residual-current fault before an upstream selective device operates. The DDA803 provides the residual-current protection function and is intended to operate with compatible ABB circuit protection providing the required overload and short-circuit protection.
Typical Applications
- Three-phase electrical distribution systems requiring 1000 mA residual-current protection.
- Compatible ABB S800 circuit-breaker installations.
- Main and sub-distribution boards requiring residual-current coordination.
- Commercial electrical distribution systems.
- Industrial electrical distribution equipment.
- Installations requiring selective coordination with suitable downstream residual-current protective devices.
Technical Specifications
| Series | DDA800 |
|---|---|
| ABB order code | 2CSB803201R5000 |
| Product group | S800 / S800P / S750 MCB |
| Product type | Selective residual current device (RCD) |
| Number of poles | 3 |
| Rated current | 100 A |
| Rated residual operating current | 1000 mA |
| Residual-current type | A |
| Selective characteristic | S |
| Residual-current detection | Sinusoidal AC and pulsating DC residual currents |
Frequently Asked Questions
What is the ABB DDA803 A S-100/1 used for?
The ABB DDA803 A S-100/1 is a three-pole selective residual current device designed to provide earth-leakage protection in compatible electrical distribution installations, with a rated residual operating current of 1000 mA.
What is the rated current of the ABB DDA803 A S-100/1?
The DDA803 A S-100/1 has a rated current of 100 A and a three-pole configuration.
What is the residual-current sensitivity of the DDA803 A S-100/1?
The device has a rated residual operating current of 1000 mA, equivalent to 1 A.
What do Type A and the S characteristic mean on the DDA803 A S-100/1?
Type A indicates detection of sinusoidal alternating and pulsating direct residual currents, while the S selective characteristic is intended to support residual-current coordination with suitable downstream protective devices.
Does the ABB DDA803 A S-100/1 provide overcurrent protection?
The DDA803 provides the residual-current protection function and is intended for use with compatible ABB circuit protection that provides the required overload and short-circuit protection within the assembled protective system.
Trusted Selective Residual-Current Protection from ABB
ABB DDA800 residual current devices complement compatible high-performance circuit breakers with dependable earth-leakage detection and selective protection options for coordinated electrical distribution systems.
