UPL41-5275-2

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Circuit breakers are a type of safety device designed to protect electrical systems from damage due to excessive current or short-circuit currents. The UPL41-5275-2 is an example of a circuit breaker that has a range of application fields and working principle.

UPL41-5275-2 Application Fields

The UPL41-5275-2 circuit breaker is designed to protect electrical systems from damage due to excessive current or short-circuit currents. It is suitable for use in industrial and commercial applications, such as motors, power supplies, lighting, and process control systems. It can be used in panel boards or with switchboards, and it is suitable for systems that operate on AC or DC power. It is also UL-listed and CSA- approved for safety and reliability.

The circuit breaker has a current rating of 30A and a voltage rating of 277VAC/250VDC, and it is a thermal magnetic type circuit breaker with a trip current of 10A (magnetic only) and 25A (thermal/magnetic). It is a single-pole breaker with a reset button and on/off switch.

UPL41-5275-2 Working Principle

The UPL41-5275-2 circuit breaker utilizes a thermal-magnetic trip system. The breaker is designed such that when an overload or short circuit occurs, the overload current flows through the thermal element of the breaker and causes it to heat up. The increased temperature results in a decrease in the resistance of the thermal element, which increases the current flow. This further increases the temperature, resulting in a cascade effect that eventually trips the breaker.

The magnetic element of the breaker is also sensitive to overload currents, and will disconnect the electrical load before the thermal element heats up in an overload situation. The magnetic element continually monitors the current flow, and will disconnect the load if the current exceeds the breaker’s rated current. This helps to protect the system from burnout or damage.

Additionally, the circuit breaker has a small reset button located on the side of the breaker. This button can be used to reset the breaker after it has tripped due to an overload or short-circuit. Simply press and hold the reset button until the breaker clicks and the breaker is reset.

Conclusion

The UPL41-5275-2 is an example of a circuit breaker that is suitable for a variety of industrial and commercial applications. It utilizes a thermal-magnetic trip system to protect the electrical system from damage due to excessive current or short-circuit currents. The breaker is UL-listed and CSA-approved for safety and reliability, and it has a small reset button located on the side of the breaker to reset it after it has tripped due to an overload or short-circuit.

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