Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CSB202901R4630 ABB DDA202 AC S-63/0.5 Selective RCD Block 2P 63 A 500 mA Type AC
ABB DDA202 AC S-63/0.5 is a 2-pole selective Type AC residual current device block rated at 63 A with 500 mA sensitivity, 5 kA surge-current resistance and provision for remote tripping.
£115.75
Why Choose the ABB DDA202 AC S-63/0.5 RCD Block?
The ABB DDA202 AC S-63/0.5 is a 2-pole selective Type AC residual current device (RCD) block designed for assembly with compatible ABB S200 series miniature circuit breakers. Part of the ABB DDA200 RCD series, it combines a 63 A rated current with a 500 mA rated residual current for commercial and industrial electrical distribution systems.
Its Type AC selective (S) characteristic responds to sinusoidal alternating earth fault currents with an intentional tripping delay. This delay enables residual-current selectivity with suitable downstream instantaneous devices, helping a local downstream fault to be disconnected without unnecessarily interrupting unaffected upstream circuits.
The DDA202 AC S-63/0.5 also provides 5 kA surge-current resistance and is supplied with additional terminals for remote tripping. Its 500 mA residual-current rating is intended for earth leakage and installation protection rather than the additional personal protection associated with 30 mA devices.
Key Advantages
- Selective S-type operation with intentional tripping delay for coordinated residual-current protection.
- Type AC protection against sinusoidal alternating residual currents.
- 500 mA rated residual current for earth leakage and installation protection.
- 63 A rated current for commercial and industrial distribution circuits.
- 5 kA surge-current resistance for improved immunity to transient surge currents.
- Supplied with additional terminals for remote tripping.
Key Features
- ABB DDA200 RCD series.
- 2-pole Type AC selective RCD block.
- S-type selective characteristic.
- 63 A rated current.
- 500 mA rated residual current.
- 230 V AC nominal voltage.
- Intentional tripping delay for selectivity with suitable downstream instantaneous RCDs.
- 5 kA surge-current resistance with 8/20 waveform.
- Additional terminals for remote tripping.
- Designed for assembly with ABB S200 series MCBs.
Selective Type AC Residual-Current Protection
Selective residual-current protection is particularly useful in installations containing multiple RCD protection levels. The intentional operating delay of the ABB DDA202 AC S-63/0.5 enables coordination with suitable downstream instantaneous devices, allowing a downstream RCD to disconnect a local earth fault before the upstream selective device operates.
The DDA202 AC S-63/0.5 responds to sinusoidal alternating earth fault currents and provides 5 kA surge-current resistance. Its 500 mA sensitivity makes it suitable for earth leakage and installation protection in coordinated commercial and industrial distribution systems rather than additional personal protection applications requiring 30 mA sensitivity.
Typical Applications
- Commercial electrical distribution systems.
- Industrial electrical installations.
- Upstream selective residual-current protection.
- Circuits requiring 500 mA earth leakage protection.
- Installations requiring coordination with downstream instantaneous RCDs.
- Main and sub-distribution boards.
- Electrical control panels and modular distribution equipment.
- Applications requiring remote tripping capability.
Technical Specifications
| Series | DDA200 |
|---|---|
| SKU | DDA202ACS630.5 |
| Order code | 2CSB202901R4630 |
| EAN | 8012542809708 |
| Product type | Selective residual current device (RCD) block |
| Residual-current type | Type AC |
| Selective characteristic | S type |
| Number of poles | 2 |
| Rated current | 63 A |
| Rated residual current | 500 mA |
| Nominal voltage | 230 V AC |
| Residual-current waveform | Sinusoidal AC |
| Tripping characteristic | Intentional time delay for selective coordination |
| Surge-current resistance | 5 kA (8/20 waveform) |
| Standard | IEC/EN 61009 Annex G |
| Application | Commercial and industrial installations |
| Compatible circuit breakers | ABB S200 series MCBs |
| Remote tripping | Additional terminals provided |
| Weight | approx. 0.20 kg |
Frequently Asked Questions
What is the ABB DDA202 AC S-63/0.5 used for?
The DDA202 AC S-63/0.5 is a 2-pole selective Type AC RCD block designed for commercial and industrial installations requiring 500 mA earth leakage protection and selective coordination with suitable downstream instantaneous residual-current devices.
What does the S designation mean on the DDA202 AC S-63/0.5?
The S designation means selective. The RCD block incorporates an intentional tripping delay that allows suitable downstream instantaneous residual-current devices to operate first when a local earth fault occurs.
What residual-current sensitivity does the DDA202 AC S-63/0.5 provide?
The device has a rated residual current of 500 mA. This rating is intended for earth leakage and installation protection rather than the additional personal protection normally associated with 30 mA RCDs.
What does Type AC mean on this RCD block?
Type AC means the DDA202 AC S-63/0.5 is designed to respond to sinusoidal alternating residual currents. The suitability of Type AC protection should always be matched to the characteristics of the connected loads and applicable installation requirements.
Does the DDA202 AC S-63/0.5 support remote tripping?
Yes. ABB specifies that DDA200 AC S selective RCD blocks are supplied with additional terminals for remote tripping, allowing the protective device to be incorporated into suitable remote-disconnection arrangements.
Trusted ABB Selective Circuit Protection
ABB DDA200 AC S residual current device blocks provide selective Type AC earth leakage protection for commercial and industrial installations, combining intentional tripping delay, 5 kA surge-current resistance and remote-tripping provision with modular integration into ABB circuit protection systems.
