ABB S202M-B10 2P-B-10A Miniature Circuit Breaker

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1. Product Overview

The ABB S202M-B10 2P-B-10A Miniature Circuit Breaker is a standard low-voltage electrical protection device from the ABB S200 series. It provides reliable overload and short-circuit protection for distribution circuits and connected loads. Featuring a B-type trip characteristic, it is ideal for residential, commercial, and light industrial electrical systems.

The S202M-B series is suitable for branch circuit protection and equipment isolation in general distribution panels.

2. Technical Specifications (Typical)

• Model: S202M-B10

• Type: Miniature Circuit Breaker

• Poles: 2P (Two-pole)

• Rated Current: 10 A

• Trip Characteristic: B-type

  • Suitable for resistive and light inductive loads

  • Sensitive to small inrush currents

• Rated Voltage:

  • AC 230 / 400 V

• Breaking Capacity:

  • 6 kA (typical)

• Mounting:

  • 35 mm DIN rail

• Mechanical Life:

  • ≥ 10,000 operations

• Electrical Life:

  • ≥ 4,000 operations (full load)

• Operating Temperature:

  • -5 °C to +40 °C

• Housing:

  • Flame-retardant engineering plastic

• Indicators:

  • Clear ON/OFF status indication

3. Advantages & Features

✔ Accurate protection performance for overload and short-circuit conditions
✔ Standard modular design for easy installation and maintenance
✔ High mechanical and electrical durability for reliable operation
✔ Safety-oriented design with flame-retardant housing
✔ Clear status indication for simple visual monitoring

4. Typical Applications

• Residential and domestic electrical distribution
• Small commercial and office power systems
• Lighting and socket branch protection
• Light motor and machine protection
• Distribution panels and control cabinet protection

5. Installation & Operation Notes

• Match rated current with load and circuit capacity
• Install in suitable environment with adequate ventilation
• Ensure correct wiring with tight terminals to avoid loose connections
• Perform regular inspection of breaker condition and wiring integrity
• Disconnect power before installation or maintenance