DDA203 AC-25/0.5

Name: DDA203 AC-25/0.5
Brand: ABB
SKU: DDA203 AC-25/0.5

The ABB DDA203 AC-25/0.5 is a high-quality residual current device block designed for 25A, 3-pole applications. It features a trip sensitivity of 500mA and is ideal for DIN rail mounting in various electrical installations.

Product ModelDDA203 AC-25/0.5

Material Number2CSB203001R4250

Product ID69223

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliability and EfficiencyThe ABB DDA203 AC-25/0.5 is engineered to provide reliable and efficient protection against earth fault currents, ensuring the safety of your electrical system.
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2. Trip SensitivityWith a trip sensitivity of 500mA, this device is highly sensitive to earth fault currents, providing quick and effective protection against potential hazards.
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3. DIN Rail MountingDesigned for easy installation, the DDA203 AC-25/0.5 can be mounted on DIN rails, making it a convenient choice for various electrical installations.
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4. Versatile ApplicationSuitable for residential, commercial, and industrial settings, this device offers a versatile solution for different types of 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 AC

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. Compliance and StandardsThe ABB DDA203 AC-25/0.5 meets international standards for residual current devices, ensuring compliance with IEC/EN 61008-1 and IEC/EN 61008-2-1.

Rated Residual Current

500 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

Options Provided

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)

0.5 ... 0.5 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

2CSB203001R4250