Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Introduction

Circuit breakers are essential components of electrical system designs that protect users and systems from dangerous electrical events. In this article, the application field and working principle of a specific type of circuit breaker, the LEG66-37615-15-V, will be introduced.

Application Field

The LEG66-37615-15-V circuit breaker is a low-voltage, plug-in type breaker. This type of breaker is most commonly used in residential and light commercial applications for such systems as lighting, heating, air conditioning, insulation, and air-flow control. This circuit breaker is often used in industrial and commercial systems as well.The LEG66-37615-15-V circuit breaker is designed for a range of applications in areas such as industrial labor and work, air-conditioning and ventilation, emergency lighting, and central heating systems. This circuit breaker is also often used in electric utility systems for main and secondary circuit protection, as well as in industrial applications for overcurrent protection of motor circuits and overload protection.

Working Principle

The operating mechanism of this type of circuit breaker is based on a thermal magnetic system. A thermal magnetic system is essentially designed to detect any forces, or changes in current, that may cause electrical damage or hazard. In a thermal magnetic system, two different components work together: a magnetic element and a thermal element.The magnetic element reacts first to any changes in current. When the current exceeds a predetermined level, the magnetic element is energized and causes a trip. The thermal element is then activated and limits the amount of power flowing through the circuit breaker, which stops the flow of current.The thermal magnetic element of the LEG66-37615-15-V circuit breaker is designed to measure changes in the current, react to them immediately, as well as limit excessive current. When the heater temperature rises beyond a predefined level, the patented thermal magnetic combination of the LEG66-37615-15-V circuit breaker will deactivate and open the circuit, eliminating any potential damage or danger.

Conclusion

The LEG66-37615-15-V circuit breaker is a low-voltage, plug-in type circuit breaker that is commonly used in residential and light commercial applications such as lighting, heating, insulation, and air-flow control. It is also well suited for use in industrial and commercial systems and electric utility systems for main and secondary circuit protection, as well as industrial applications for motor circuits and overload protection. The thermal magnetic system used in this type of circuit breaker is designed to detect any changes in the current and open the circuit immediately in order to eliminate potential damage or danger.

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