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2CSB803101R3000 ABB DDA803 A-100/0.3 100 A 3-Pole Type A 300 mA Residual Current Device
ABB DDA803 A-100/0.3 is a 100 A three-pole Type A residual current device with 300 mA rated residual operating current for earth-leakage protection in compatible electrical distribution installations.
£409.99
Why Choose the ABB DDA803 A-100/0.3 Residual Current Device?
The ABB DDA803 A-100/0.3 is a three-pole residual current device (RCD) designed to provide residual-current protection in electrical distribution installations. Rated at 100 A with a 300 mA residual operating current, this Type A device provides residual-current detection for applications requiring protection against both sinusoidal AC and pulsating DC residual currents.
As part of ABB's DDA800 range, the DDA803 A-100/0.3 provides residual-current functionality for compatible S800 high-performance circuit-breaker installations. When used in the appropriate ABB system configuration, it complements overcurrent protection by detecting earth-leakage conditions and disconnecting the protected circuit when the applicable residual-current threshold is reached.
The combination of a three-pole configuration, 100 A rated current, 300 mA sensitivity and Type A residual-current characteristic makes this model suitable for compatible commercial and industrial electrical distribution applications. ABB order code 2CSB803101R3000 identifies this specific DDA803 variant.
Key Advantages
- 300 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 residual-current characteristic.
- Detection of sinusoidal AC and pulsating DC residual currents.
- Designed to complement overcurrent protection in compatible ABB S800 installations.
- Supports coordinated residual-current and circuit protection within electrical distribution equipment.
- ABB-engineered solution for professional electrical installations.
Key Features
- ABB DDA803 residual current device.
- 100 A rated current.
- 300 mA rated residual operating current.
- Three-pole design.
- Type A residual-current detection.
- Responds to sinusoidal AC and pulsating DC residual currents.
- Designed for residual-current protection in compatible electrical distribution systems.
- Suitable for use with the corresponding ABB S800 circuit-breaker system.
- Provides earth-leakage fault detection as part of a correctly configured protective assembly.
Reliable 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 produces a residual current above the device's operating threshold. With a rated residual operating current of 300 mA, the ABB DDA803 A-100/0.3 provides residual-current fault detection for compatible three-phase electrical distribution systems requiring a Type A device.
The DDA803 is intended to work as part of ABB's compatible high-performance circuit protection system rather than replacing the overcurrent protection function of the associated circuit breaker. Its Type A characteristic enables detection of both sinusoidal alternating and pulsating direct residual currents, while the three-pole, 100 A configuration supports higher-current three-phase distribution applications.
Typical Applications
- Three-phase electrical distribution systems requiring 300 mA residual-current protection.
- Compatible ABB S800 circuit-breaker installations.
- Commercial electrical distribution boards.
- Industrial electrical distribution equipment.
- Building electrical installations requiring Type A residual-current detection.
- Higher-current three-phase circuits requiring residual-current protection alongside compatible overcurrent protection.
Technical Specifications
| Series | DDA800 |
|---|---|
| ABB order code | 2CSB803101R3000 |
| Product group | S800 / S800P / S750 MCB |
| Product type | Residual current device (RCD) |
| Number of poles | 3 |
| Rated current | 100 A |
| Rated residual operating current | 300 mA |
| Residual-current type | A |
| Residual-current detection | Sinusoidal AC and pulsating DC residual currents |
Frequently Asked Questions
What is the ABB DDA803 A-100/0.3 used for?
The ABB DDA803 A-100/0.3 is a three-pole residual current device designed to provide earth-leakage protection in compatible electrical distribution installations, with a rated residual operating current of 300 mA.
What is the rated current of the ABB DDA803 A-100/0.3?
The DDA803 A-100/0.3 has a rated current of 100 A and a three-pole configuration.
What is the residual-current sensitivity of the DDA803 A-100/0.3?
The device has a rated residual operating current of 300 mA.
What does Type A mean on the ABB DDA803 A-100/0.3?
Type A means the device is designed to detect sinusoidal alternating residual currents as well as pulsating direct residual currents, making it suitable for applications where these residual-current waveforms may occur.
Does the ABB DDA803 A-100/0.3 provide overcurrent protection?
The DDA803 provides the residual-current protection function and is intended for use with a compatible ABB circuit breaker that provides the required overload and short-circuit protection within the assembled protective system.
Trusted Residual-Current Protection from ABB
ABB DDA800 residual current devices complement compatible high-performance circuit breakers with dependable earth-leakage detection for coordinated electrical distribution protection.
