Abb Earth Leakage add-on Block DDA202 2P 40A 500mA Type A 2M B427921
Abb Earth Leakage add-on Block is designed to be coupled with S 200 series circuit breakers, providing magnetothermal differential protection. Ideal for civil and industrial electrical systems, it ensures safety and efficiency, with the following features:
-
Rated current: 40A
-
Rated residual current: 500mA (high sensitivity)
-
Residual current type: Type A (protection against alternating and unidirectional pulsating currents)
-
Number of poles: 2P
-
Number of modules: 2M
-
Rated voltage: 230/400V
Frequently bought together
Abb Earth Leakage add-on Block DDA202 2P 40A 500mA Type A 2M
The Earth Leakage add-on Block is an essential device for the safety of electrical systems. Combined with the S 200 series circuit breakers, it makes it possible to create a magnetothermal differential protection system against earth leakage faults, preventing electrocution and fire hazards.
Operation and type of protection
This model of residual current circuit breaker is Type A, which means it offers protection against both alternating and pulsating unidirectional leakage currents, often generated by electronic devices such as inverters, battery chargers, and semiconductor-controlled equipment.
Advanced technical features
Designed to operate in environments with temperatures ranging from -25 to +55 degrees, it offers a rated voltage of 230V and an isolation voltage of 500V, ensuring high performance and safety. The IP2X degree of protection ensures adequate resistance to dust and foreign bodies.
Applications and areas of use
The Earth Leakage add-on Block is ideal for residential, commercial and industrial applications. With a current rating of 40A, it is perfect for protecting electrical circuits in homes, offices and small manufacturing operations.
Main Features
| Feature | Value |
|---|---|
| Rated current | 40 A |
| Number of poles | 2P |
| Number of modules | 2 |
| Rated residual current | 500 mA |
| Residual current type | Type A |
| Rated voltage | 230/400 V |
| Rated operating voltage | 230 V |
| Rated insulation voltage | 500 V |
| Rated frequency | 50/60 Hz |
Performance and Safety
| Feature | Value |
|---|---|
| Impulse withstand voltage | 4 kV |
| Power loss | 3,2 W |
| Electrical resistance | 10000 cycles |
| Ambient temperature | -25/+55 degrees |
| Degree of protection | IP2X |
Dimensions
| Feature | Value |
|---|---|
| Width | 70mm |
| Height | 93 mm |
| Depth | 76 mm |
Data sheet
- Voltage: 230/400VAC
- Modules: 2
- Poles: 2P
- RCD Type: A
- Differential current : 0.5A
- Amps: 40A
- Circuit Protections: Earth Leakage add-on Blocks

