Advanced protection against earth fault currents and indirect contacts. Suitable for residential, commercial, and industrial use. Compatible with MCBs S200 series and S300P.
Product ModelDDA202 A-25/0.5
Material Number2CSB202101R4250
Product ID76881
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Enhanced Safety FeaturesThe ABB DDA202 A-25/0.5 provides robust protection against earth fault currents and indirect contacts, ensuring a safer electrical environment for your home or business.
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2. Versatile ApplicationDesigned for residential, commercial, and industrial use, this RCD block is versatile and can be easily integrated into various electrical systems.
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3. Compatibility with MCBsThe DDA202 A-25/0.5 is compatible with ABB's MCBs S200 series and S300P, making it easy to assemble and integrate into your existing electrical setup.
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4. High PerformanceWith its advanced technology, this RCD block offers reliable and efficient protection against electrical hazards, ensuring your system operates smoothly and safely.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Standards
IEC/EN 61009 Ann. G
Type of Residual Current
Type A
Rated Voltage (Ur)
230/400 V
Rated Operational Voltage
230 V
Rated Insulation Voltage (Ui)
500 V
Rated Impulse Withstand Voltage (Uimp)
4 kV
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5. Easy InstallationThe DDA202 A-25/0.5 features a simple and tool-free installation process, making it convenient for both professionals and DIY enthusiasts to set up and use.
Rated Current (In)
25 A
Rated Residual Current
500 mA
Leakage Current Type
A
Rated Frequency (f)
50 ⦠60 Hz
Power Loss
2 W
Power Supply Connection
Arbitrary
Electrical Endurance
10000 cycle
Number of Poles
2
Operating Characteristic
Instantaneous
Connecting Capacity
Rigid 25 ... 25 mm² Flexible 25 ... 25 mm²
Ambient Temperature
-25...55 °C
Ambient Air Temperature
Operation -25...55 °C
Degree of Protection
IP2X
Resistance to Vibrations
20 Cycles with Load 0.8 In: 1g or 1mm 50 ⦠150 ⦠5 Hz
Resistance to Shock acc. to IEC 60068-2-27
25g 2 shocks 13 ms
Environmental Information
Refer to RoHS
Short-Circuit Current Rating (SCCR)
0.5 ... 0.5 A
Product Net Width
70 mm
Product Net Height
93 mm
Product Net Depth / Length
76 mm
Product Net Weight
210 g
ETIM 8
EC002297 - Residual current circuit breaker (RCCB) module
ETIM 9
EC002297 - Residual current circuit breaker (RCCB) module
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
WEEE B2C / B2B
Business To Consumer
CN8
85363030
eClass
V11.0 : 27142210
Object Classification Code
F
Manufacturer ID
2CSB202101R4250
ABB DDA202 A-25/0.5 Residual Current Device Block - Advanced Protection for Your Electrical System | INDSLT
