CB255-50

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Circuit Breakers are used to provide protection from excess current flow in electrical circuits. CB255-50 is a type of circuit breaker that can be used to regulate current flow and can also be used as a fault protection device. This article will provide an overview of the application field and working principle of a CB255-50 circuit breaker.

Application Field

The CB255-50 circuit breaker can be used in a variety of applications such as residential, commercial, industrial, and transportation applications. It is suitable for use in both AC and DC circuits to safely isolate the circuit from the supply power when an overload or fault is detected.

The CB255-50 circuit breaker is capable of providing circuit protection in a variety of applications including:

• Lighting and Appliance Control
• Motor circuits
• Heating and air conditioning systems
• Alarm systems
• Emergency lighting systems
• Exhaust fan circuits
• Industrial power supplies

Working Principle

The CB255-50 circuit breaker is designed to trip when the current flow exceeds the threshold set by the user. This type of circuit breaker has a thermal-magnetic trip mechanism, which uses both a thermal element and a magnetic element to detect and respond to potentially hazardous current flows.

The thermal element works by sensing the temperature rise in the circuit breaker caused by the passing current. When the temperature rise in the circuit breaker reaches the predetermined set level, the thermal element trips and the current is severed from the circuit.

The magnetic element works to detect current spikes caused by equipment failures and faults. The magnetic element uses a magnetic field to detect these types of current spikes and trips the breaker when they exceed the user-defined threshold.

When either the thermal element or the magnetic element trips, the connection between the power source and the circuit is severed, ensuring that the excess current does not cause any damage to the equipment or the wiring.

Conclusion

The CB255-50 circuit breaker is a reliable and effective way to protect circuits and equipment against excess current flow. Its thermal-magnetic trip mechanism is designed to quickly detect any current overload or fault, allowing the circuit breaker to trip and isolate the circuit from the supply power before any damage can occur. This makes the CB255-50 circuit breaker an ideal choice for many residential, commercial, industrial and transportation applications.

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