Abb breaker parts
ABB is a well-known company that manufactures a wide range of electrical equipment, including circuit breakers. Here are some common parts of an ABB breaker:
- Main Contact: The main contact is the moving part that makes and breaks the electrical circuit. It is typically a spring-loaded contact that opens and closes to interrupt the flow of current.
- Fixed Contact: The fixed contact is the stationary part that the main contact moves against to make and break the circuit.
- Arc Chute: The arc chute is a metal plate that helps to extinguish the arc that forms when the breaker trips. It is designed to dissipate the energy of the arc and prevent it from reigniting.
- Trip Unit: The trip unit is the electronic or mechanical device that detects overcurrent or overvoltage conditions and sends a signal to the breaker to trip.
- Operating Mechanism: The operating mechanism is the part that moves the main contact to open or close the circuit. It is typically a spring-loaded mechanism that is actuated by an electrical signal.
- Spring: The spring is used to store energy and return the main contact to its rest position after the breaker has tripped.
- Insulators: Insulators are used to support the electrical contacts and prevent them from coming into contact with each other when the breaker is in the open position.
- Housing: The housing is the outer casing of the breaker that contains all the internal components.
- Terminals: The terminals are the connectors that attach to the breaker and allow it to be connected to the electrical circuit.
- Mounting Hardware: The mounting hardware is the part that attaches the breaker to the panel or enclosure.
Some other parts that may be specific to certain types of ABB breakers include:
- Thermal Overload Relays: These are used to detect overheating in the breaker and trip it if necessary.
- Surge Arresters: These are used to protect the breaker from voltage surges and spikes.
- Ground Fault Interrupters: These are used to detect ground faults and trip the breaker if necessary.
- Arc Fault Interrupters: These are used to detect arc faults and trip the breaker if necessary.
It's worth noting that the specific parts of an ABB breaker may vary depending on the type and model of the breaker, as well as the specific application it is being used in.