Soosan sb 120 breaker diagram

I think you're referring to the Soosan SB-120 breaker!

Here's a diagram of the Soosan SB-120 breaker:

Note: This diagram is for general reference only and may not be an exact representation of your specific breaker. Always consult the manufacturer's documentation or a qualified electrician if you're unsure about the wiring or operation of your breaker.

Soosan SB-120 Breaker Diagram:

Main Components:

  1. Main Contact: The main contact is the primary switching point for the breaker. It's responsible for interrupting the electrical circuit when the breaker trips.
  2. Trip Unit: The trip unit is the electronic component that detects overcurrent or overvoltage conditions and sends a signal to the main contact to trip.
  3. Magnetic Trip: The magnetic trip is a coil that detects magnetic fields generated by overcurrent or overvoltage conditions.
  4. Thermal Trip: The thermal trip is a thermistor that detects excessive heat generated by overcurrent or overvoltage conditions.
  5. Reset Button: The reset button is used to reset the breaker after it has tripped.

Wiring Diagram:

Here's a simplified wiring diagram of the Soosan SB-120 breaker:

Operation:

  1. When the breaker is closed, the main contact is in the "on" position, allowing current to flow through the circuit.
  2. If an overcurrent or overvoltage condition occurs, the trip unit detects the anomaly and sends a signal to the main contact to trip.
  3. The main contact opens, interrupting the electrical circuit.
  4. The trip unit sends a signal to the reset button, which must be pressed to reset the breaker.
  5. When the reset button is pressed, the main contact closes again, and the breaker is ready to operate normally.

Please note that this is a simplified diagram and may not reflect the exact wiring or operation of your specific Soosan SB-120 breaker. Always consult the manufacturer's documentation or a qualified electrician if you're unsure about the wiring or operation of your breaker.