The ABB DDA203 A-63/0.3 AE residual current circuit breaker provides comprehensive earth fault protection, ensuring safety in residential, commercial, and industrial settings.
Product ModelDDA203 A-63/0.3 AE
Material Number2CSB203701R3630
Product ID69251
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Comprehensive Earth Fault Protection DescriptionThe ABB DDA203 A-63/0.3 AE is designed to protect against both sinusoidal alternating and direct pulsating earth fault currents, ensuring your electrical system remains safe from indirect and direct contacts.
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2. International Standards Compliance DescriptionThis product meets the stringent standards of IEC/EN 61008-1 and IEC/EN 61008-2-1, ensuring it conforms to international safety and reliability benchmarks.
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3. Versatile Application DescriptionSuitable for residential, commercial, and industrial applications, the ABB DDA203 A-63/0.3 AE is a versatile solution for various electrical needs, providing robust protection in diverse settings.
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4. Reliable Performance DescriptionWith its robust design and reliable performance, the ABB DDA203 A-63/0.3 AE ensures continuous operation under various environmental conditions, including damp heat and tropical climates.
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
Application
For emergency stop
Rated Voltage (Ur)
230/400 V
Rated Operational Voltage
400 V
Rated Insulation Voltage (Ui)
500 V
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5. Easy Installation DescriptionThe product features easy installation options, including shock-protected terminals and a fail-safe bi-directional cylinder-lift mechanism, making it simple to integrate into your electrical system.
Rated Impulse Withstand Voltage (Uimp)
4 kV
Rated Current (In)
63 A
Rated Residual Current
300 mA
Leakage Current Type
A
Rated Frequency (f)
50 ⦠60 Hz
Power Loss
7.6 W
Power Supply Connection
Arbitrary
Electrical Endurance
10000 cycle
Number of Poles
3
Operating Characteristic
Instantaneous (AE for Emergency Stop)
Options Provided
For emergency stop
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
2CSC427001K2701
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)
