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ABB 2CSB203001R3250 DDA203 AC-25/0.3 3P 25A 300mA Type AC RCD Block Residual Current Device Module

% $-76.44
ABB 2CSB203001R3250 DDA203 AC-25/0.3 RCD block - 3-pole 25A 300mA Type AC
ABB 2CSB203001R3250 DDA203 AC-25/0.3 RCD block - 3-pole 25A 300mA Type AC

ABB 2CSB203001R3250 DDA203 AC-25/0.3 3P 25A 300mA Type AC RCD Block Residual Current Device Module

Brand: ABB
Reference No: 2CSB203001R3250
Catalog No: DDA203 AC-25/0.3
Series: Residual Current Devices RCD Blocks
Tariff Code (HS): 853630
Rated Current: 25
Breaking Type: Type AC, 300 mA, Instantaneous
Rated Voltage: 230/400 V
Poles: 3P
Stock: 0
Delivery time: 30 business day(s)
Shipping Origin: Türkiye EXW
$76.44

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  • Description

The ABB 2CSB203001R3250 (DDA203 AC-25/0.3) is a 3-pole, 25 A residual current device block with 300 mA Type AC sensitivity and instantaneous tripping, designed to add earth-fault protection to S200-series and S300P miniature circuit breakers. It is rated 230/400 V with a 1 kA short-circuit current rating and mounts on 5 DIN-rail module spacings.

Technical Specifications

Catalog Designation DDA203 AC-25/0.3
SKU 2CSB203001R3250
Brand ABB
Series Residual Current Devices RCD Blocks
EAN 8012542793106
Type of Residual Current Type AC
Rated Current Sensitivity 300 mA
Operating Characteristic Instantaneous
Number of Poles 3P
Rated Current (In) 25 A
Rated Voltage (Ur) 230/400 V
Rated Operational Voltage 230/400 V
Rated Insulation Voltage (Ui) 500 V (IEC/EN 60664-1)
Rated Impulse Withstand Voltage (Uimp) 4 kV
Short-Circuit Current Rating (SCCR) 1 kA
Test Voltage (Ut) 195-440 V
Power Loss Total 3 W
Connecting Capacity Flexible 0-16 mm², Rigid 0-16 mm²
Degree of Protection IP2X
Pollution Degree 2
Ambient Temperature Operation -25 to 50°C
Number of Modular Spacings 5
Width 87.5 mm
Height 93 mm
Depth 69 mm
Weight 325 g

Certifications & Standards

  • IEC/EN 61009 Ann. G

Selection Notes

The AC-25/0.3 suffix on the DDA203 encodes 25 A rated current and 300 mA sensitivity, the standard threshold for indirect-contact protection on a 3-phase circuit. As a 3-pole block it protects all three phases of a 3-phase MCB rather than the single-phase coverage of a 2-pole RCD block. Choose the 30 mA sensitivity version instead where direct-contact protection is the design requirement.

Technical Details

Short Description
ABB DDA203 AC-25/0.3 3-pole RCD block, 25A, 300mA Type AC, instantaneous, for S200/S300P MCBs.
Rated Current (Ampere)
25
Rated Voltage (VAC)
230/400 V
Mounting Type
DIN-Rail
Protection Type
IP2X
Catalog No
DDA203 AC-25/0.3
Number of Poles
3P
Standards
IEC/EN 61009 Ann. G
Delivery Date (Days)
30 days
Model Number
DDA203 AC-25/0.3
Tariff Code
853630

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