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ABB DS203NCA-B10/0.03 RCD/LCB DS203NCA-B10/0.03 6kA, 3P+N, type A, B 10, 3

Price in EUR including VAT
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BrandMore from ABB
Delivered between 6.1.2026 and 21.1.2026
free shipping

rated current4

Residual current (rated differential current)2

Product details

The ABB DS203NCA-B10/0.03 is a highly advanced RCD/MCB that functions both as a residual current device (RCD) and a miniature circuit breaker (MCB). With a rated voltage of 500 V and a rated current of 10 A, this switch provides a reliable solution for protecting electrical installations. It is designed for mounting on a DIN rail and is ideal for applications in residential and commercial buildings. The switch features a type B tripping characteristic, ensuring a quick response to overload and short-circuit conditions. With an IPX2 protection rating, it is also protected against water ingress, expanding its usability in various environments. The DS203NCA-B10/0.03 is a product that promotes both safety and efficiency in electrical systems.

  • Combination of RCD and MCB functions for comprehensive protection
  • Type B tripping characteristic for quick response to overload
  • Suitable for mounting on DIN rails
  • IPX2 protection rating for additional water protection
  • Manufactured in Italy to high quality standards.

Key specifications

Circuit breaker type
Miniature circuit-breaker/residual current circuit-breaker combination
Length
69 mm
Width
71 mm
number of poles
4
Mounting type
Top-hat rail
Item number
32155638

General information

Manufacturer
ABB
Category
Residual-current device
Manufacturer no.
2CSR256140R1105
Release date
16.11.2022

Colour

Colour
White
Exact colour description
White

Circuit Breaker Features

Circuit breaker type
Miniature circuit-breaker/residual current circuit-breaker combination
Mounting type
Top-hat rail
number of poles
4
Tripping characteristic
B/10 ka
Rated current
10 A
Rated current
0.03 A
Rated voltage
500 V
voltage type
AC
Residual current (rated differential current)
0.03 A
Protection type (IP code)
IPX2

Origin

Country of origin
Italy

Sustainability

Manufacturer commitment
SBTi

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Items per sales unit
1 Piece

Product dimensions

Length
69 mm
Width
71 mm
Height
85 mm
Weight
480 g

Legal Notice

Product Safety

14-day cancellation right
30-day right of return if unopened
24 Months statutory warranty

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Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Residual-current device» category have a defect within the first 24 months?

Source: Galaxus
  • 1.Schneider Electric
    0 %
  • 1.Siemens
    0 %
  • 4.ABB
    0,1 %
  • 4.Eaton
    0,1 %
  • 6.Hager
    0,3 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • ABB
    Not enough data
  • Brennenstuhl
    Not enough data
  • Eaton
    Not enough data
  • Hager
    Not enough data
  • Schneider Electric
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Return rate

How often is a product of this brand in the «Residual-current device» category returned?

Source: Galaxus
  • 2.Steffen
    0,3 %
  • 3.Schneider Electric
    1,3 %
  • 4.ABB
    2,1 %
  • 5.Siemens
    2,8 %
  • 6.Eaton
    3,7 %
Source: Galaxus