Abb Earth Leakage add-on Block DDA204 4P 25A 30mA Type B 4M B273222
Abb Earth Leakage add-on Block DDA204, offers advanced protection against type B leakage currents, detecting both alternating and direct currents. Ideal for electrical systems that include advanced electronic devices, such as inverters and photovoltaic systems, with the following characteristics:
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Rated current: 25A
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Rated residual current: 30mA (high sensitivity)
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Residual current type: Type B (AC, pulsating and smooth continuous)
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Number of poles: 4P
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Number of modules: 4M
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Rated voltage: 230/400V
Abb DDA204 4P 25A 30mA Type B Earth Leakage add-on Block 4M
Designed to provide maximum safety in systems with advanced electronic equipment, such as inverters, photovoltaic systems and electric vehicle chargers. Type B provides protection against alternating, pulsating and smooth continuous leakage currents, offering a complete solution for complex circuits.
High-efficiency operation
This Earth Leakage add-on Block has an APR (High Immunity) operating characteristic, making it particularly resistant to electrical disturbances, reducing the risk of untimely tripping and providing reliable protection even in environments with high levels of electromagnetic interference.
Durability and reliability over time
Designed to withstand 10,000 electrical cycles, the device ensures a long operational life. It also ensures low environmental impact and safe materials through compliance with RoHS and REACH regulations.
Technical specifications and compatibility
The Earth Leakage add-on Block offers an insulation voltage rating of 500V, an impulse withstand voltage of 4kV, and a power loss of 3W, ensuring high performance and safety. It is compatible with rigid and flexible conductors up to 16 sq. mm and is DIN rail installable.
Applications and areas of use
Perfect for industrial, residential and commercial installations with advanced electronic equipment, the differential block is the ideal choice for protecting circuits with inverters, electric vehicle charging systems and photovoltaic installations.
Key Features
| Feature | Value |
|---|---|
| Rated current | 25 A |
| Number of poles | 4P |
| Number of modules | 4 |
| Rated residual current | 30 mA |
| Residual current type | Type B |
| Rated voltage | 230/400 V |
| Isolation voltage | 500 V |
| Rated frequency | 50/60 Hz |
Performance and Safety
| Feature | Value |
|---|---|
| Impulse withstand voltage | 4 kV |
| Maximum peak current | 3 kA |
| Power loss | 3 W |
| Electrical resistance | 10,000 cycles |
| Ambient temperature | -25/+55 degrees |
| Degree of protection | IP2X |
Dimensions
| Feature | Value |
|---|---|
| Width | 140mm |
| Height | 93 mm |
| Depth | 76 mm |
Data sheet
- Voltage: 230/400VAC
- Modules: 4
- Poles: 4P
- RCD Type: B
- Differential current : 0.03A
- Amps: 25A
- Circuit Protections: Earth Leakage add-on Blocks

