Advanced protection for electrical systems with the ABB DDA203 A-25/1, ensuring safety against sinusoidal alternating earth fault currents and indirect contacts.
Product ModelDDA203 A-25/1
Material Number2CSB203101R5250
Product ID82175
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable OperationThe DDA203 A-25/1 operates reliably at 50/60 Hz, providing consistent performance in various electrical environments.
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2. Advanced ProtectionDesigned to protect against sinusoidal alternating earth fault currents and indirect contacts, ensuring the safety of your electrical system.
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3. CompatibilitySuitable for assembly with ABB's MCBs S200 series and S300P, making it a versatile solution for your electrical needs.
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4. Efficient DesignCompact and efficient design allows for easy integration into your existing electrical setup, minimizing installation time and effort.
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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
230/400 V
Rated Insulation Voltage (Ui)
500 V
Rated Impulse Withstand Voltage (Uimp)
4 kV
5. High-Quality ComponentsBuilt with high-quality components, the DDA203 A-25/1 offers reliable and long-lasting performance, reducing the need for frequent replacements.
Rated Current (In)
25 A
Rated Residual Current
1000 mA
Leakage Current Type
A
Rated Frequency (f)
50 ⦠60 Hz
Power Loss
3 W
Power Supply Connection
Arbitrary
Electrical Endurance
10000 cycle
Number of Poles
3
Operating Characteristic
Instantaneous
Options Provided
-
Connecting Capacity
Rigid 16 ... 16 mm² Flexible 16 ... 16 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)
1...1 A
Product Net Width
87 mm
Product Net Height
93 mm
Product Net Depth / Length
76 mm
Product Net Weight
158 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
2CSB203101R5250
ABB DDA203 A-25/1 Residual Current Device Block - Advanced Protection for Your Electrical System | INDSLT
