ABB S203-C50A Miniature Circuit Breaker

We will arrange delivery within 3-5 days after receiving the payment.

Our express delivery: DHL and FedEx.

Quality packing for each product

Destination country all taxes & duty to be paid by buyer

Only part of the brand and model, if you have other product needs, please contact us.

1. Product Overview

The ABB S203-C50A Miniature Circuit Breaker is an overload and short-circuit protection device for low-voltage distribution systems. It quickly disconnects fault currents to protect electrical equipment and circuits. S203-C50A features a modular design, compact size, and easy installation, suitable for residential, commercial, and industrial distribution systems, supporting manual operation and optional remote control accessories.

2. Technical Specifications

• Model: S203-C50A

• Product Type: Miniature Circuit Breaker

• Rated Current: 50 A

• Poles: 3P (Three-Pole)

• Rated Operational Voltage: AC 230/400 V

• Tripping Characteristic: C Type (suitable for general circuits and motor protection)

• Breaking Capacity: 6 kA

• Mounting: DIN rail

• Operation: Manual switching

• Operating Temperature: –25 ℃ to +40 ℃

• Degree of Protection: IP20

• Standards: CE / IEC 60898 / UL

3. Advantages and Features

1. High Reliability
   Quickly disconnects overload and short-circuit currents to protect equipment and circuits.

2. Modular Design
   DIN rail mounting allows easy expansion and maintenance.

3. Compact Size
   Small footprint suitable for various distribution cabinets and panels.

4. Easy Operation
   Manual switching is convenient; optional remote control accessories available.

5. Wide Application
   Suitable for residential, commercial, and industrial low-voltage systems.

4. Applications

• Residential and commercial building distribution systems

• Low-voltage circuits in industrial plants

• Overload and short-circuit protection for motors and equipment

• Distribution in automation control cabinets

• Low-voltage systems in water treatment, power, and chemical industries

5. Installation and Usage Notes

1. Ensure the breaker’s rated current, voltage, and number of poles match the system before installation.

2. Perform wiring and installation with power disconnected to ensure safety.

3. Avoid installation in high-temperature, high-humidity, or corrosive environments; provide protection if necessary.

4. Regularly inspect breaker status and terminal connections to ensure long-term reliable operation.

5. Do not modify or disassemble the breaker to prevent affecting its protection functions.