DDA203 A-25/0.3

Name: DDA203 A-25/0.3
Brand: ABB
SKU: DDA203 A-25/0.3

The ABB DDA203 A-25/0.3 Residual Current Device Block provides comprehensive protection against earth fault currents and indirect contacts, ideal for residential, commercial, and industrial settings.

Product ModelDDA203 A-25/0.3

Material Number2CSB203101R3250

Product ID82169

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
Feature1. Advanced Protection Against Earth Fault Currents The DDA203 A-25/0.3 ensures robust protection against sinusoidal alternating earth fault currents, safeguarding against potential electrical hazards.
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Feature2. Indirect Contact Protection This device offers additional protection against indirect contacts, ensuring that users are safeguarded from electrical shocks.
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Feature3. Direct Contact Protection (IΔn=30 mA) It provides additional protection against direct contacts with a sensitivity of 30 mA, enhancing overall safety.
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Feature4. Compatibility with MCBs S200 Series Designed for assembly with MCBs S200 series, the DDA203 A-25/0.3 offers seamless integration into various electrical systems.

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

Feature5. Compliance with International Standards The device meets international standards such as IEC/EN 61009 Ann. G, ensuring high-quality and reliable performance in various applications.

Rated Residual Current

300 mA

Leakage Current Type

Rated Frequency (f)

50 â¦ 60 Hz

Power Loss

3 W

Power Supply Connection

Arbitrary

Electrical Endurance

10000 cycle

Number of Poles

Operating Characteristic

Instantaneous

Connecting Capacity

Rigid 16 ... 16 mmÂ² Flexible 16 ... 16 mmÂ²

Ambient Temperature

-25...55 Â°C

Ambient Air Temperature

Operation -25...55 Â°C

Degree of Protection

IP2X

Resistance to Vibrations

20 Cycles with Load 0.8 In: 1g or 1mm 50 â¦ 150 â¦ 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)

0.3 ... 0.3 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

Manufacturer ID

2CSB203101R3250