ABB 2CDS273001R0254 Circuit Breaker

• 1. Product Overview

  The ABB 2CDS273001R0254 is a three-pole miniature circuit breaker (MCB) from the System pro M compact S200M series, model S203M-C25.
  It features thermal-magnetic trip protection to safeguard low-voltage distribution circuits against overloads and short circuits. Compact and easy to install, it is suitable for residential, commercial, and light industrial distribution systems.

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  2. Technical Specifications

  • Model: 2CDS273001R0254 (S203M-C25)

  • Series: System pro M compact (S200M)

  • Type: Miniature Circuit Breaker (MCB)

  • Poles: 3

  • Rated Current: 25 A

  • Tripping Characteristic: C‑curve (medium inrush)

  • Rated Operational Voltage: 400 V AC

  • Rated Insulation Voltage (Ui): 440 V

  • Rated Impulse Withstand Voltage (Uimp): 4 kV

  • Breaking Capacity: 10 kA (IEC/EN 60898‑1, 230/400 V AC)

  • Modular Width: 3 modules

  • Mounting: 35 mm DIN rail

  • Ambient Temperature: -25 to +55 °C

  • Connectable Conductor Cross Section:

    • Solid wire: 0.75 – 35 mm²

    • Flexible wire: 0.75 – 25 mm²

  • Protection Class: IP20

  • Mechanical Life: 20,000 operations

  • Electrical Life: 10,000 operations

  • Dimensions (approx.): Width 52.5 mm × Depth 69 mm × Height 88 mm

  • Weight (approx.): 0.375 kg

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  3. Key Advantages & Features

  1. Thermal-Magnetic Protection: Combines thermal trip for overloads and magnetic trip for short circuits, ensuring circuit safety.

  2. C‑Curve Characteristic: Suitable for medium inrush loads such as lighting, sockets, and small motors.

  3. High Breaking Capacity: Can safely interrupt short-circuit currents up to 10 kA in typical low-voltage systems.

  4. Compact Design: Only 3 modules wide, saving panel space and allowing auxiliary modules.

  5. Easy Installation and Maintenance: DIN rail mounting for quick installation and replacement.

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  4. Typical Applications

  • Low-voltage distribution systems in residential and commercial buildings

  • End-line protection in light industrial circuits

  • Branch circuit overload and short-circuit protection in control panels

  • Protection for lighting, sockets, and medium-power loads

  • Small control panels and electrical distribution solutions

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  5. Installation & Usage Notes

  1. Verify that the breaker’s rated current matches the circuit load before installation.

  2. Ensure secure wiring to prevent overheating or poor contact.

  3. Install the breaker in dry, ventilated areas away from corrosive atmospheres and high temperatures.

  4. Installation and accessory mounting should be performed by qualified personnel.

  5. Periodically check the breaker operation and status indicators to ensure long-term reliability.

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The structure and details of the product：

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