DDA203 A S-63/0.3

Name: DDA203 A S-63/0.3
Brand: ABB
SKU: DDA203 A S-63/0.3

Short Description: The ABB DDA203 A S-63/0.3 is a reliable residual current device block designed for protection against sinusoidal alternating earth fault currents and indirect contacts. It is suitable for residential, commercial, and industrial applications, ensuring safety with a sensitivity of 30 mA.

Product ModelDDA203 A S-63/0.3

Material Number2CSB203201R3630

Product ID82264

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Protection Against Earth FaultsThe ABB DDA203 A S-63/0.3 provides comprehensive protection against sinusoidal alternating earth fault currents, ensuring your electrical system remains safe and secure.
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2. Indirect and Direct Contact ProtectionThis device offers protection against both indirect and direct contacts, providing a robust safeguard against electrical hazards.
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3. Compatibility with MCBsDesigned for assembly with MCBs S200 series and S300P, the DDA203 A S-63/0.3 integrates seamlessly into your electrical setup, enhancing overall system reliability.
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4. Versatile ApplicationsSuitable for residential, commercial, and industrial applications, this device is versatile and can be used in a variety of settings to ensure electrical safety.

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

400 V

Rated Insulation Voltage (Ui)

500 V

Rated Impulse Withstand Voltage (Uimp)

4 kV

5. High SensitivityWith a sensitivity of 30 mA, the DDA203 A S-63/0.3 detects even the slightest deviations in current, providing rapid and effective protection against electrical faults.

Rated Residual Current

300 mA

Maximum Surge Current

5 kA

Leakage Current Type

Rated Frequency (f)

50 â¦ 60 Hz

Power Loss

7.6 W

Power Supply Connection

Arbitrary

Electrical Endurance

10000 cycle

Number of Poles

Operating Characteristic

Selective

Connecting Capacity

Rigid 25 ... 25 mmÂ² Flexible 25 ... 25 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

122 mm

Product Net Height

93 mm

Product Net Depth / Length

76 mm

Product Net Weight

311 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

2CSB203201R3630