LEGBX66-37184-20-V Circuit Protection

Circuit Breakers

The LEGBX66-37184-20-V is a type of circuit breaker used for protecting electrical systems and equipment. Its primary job is to prevent dangerous overloads and short circuit currents from damaging electrical equipment. The LEGBX66-37184-20-V circuit breaker is also used for detecting and reacting to electrical faults, and can be set to selectively trip to protect pre-defined areas of an electrical distribution system.

Application Field

The LEGBX66-37184-20-V circuit breaker is commonly used in residential, commercial, and industrial settings and is available in a variety of current ratings, including 10A, 15A, and 20A. It is also used in a wide range of residential and industrial settings, including motor control systems, motor drives, and HVAC systems. It is designed to be used in applications up to 660V and can be used in areas where frequent overloads are expected, such as in high-current carrying circuits. It is relatively easy to install and can be installed in AC and DC settings.

Working Principle

The LEGBX66-37184-20-V circuit breaker is based on the thermal-magnetic principle. It features a bimetal strip connected to a magnetic spring that senses the current flowing through the circuit. As the current increases, the bimetal strip bends and activates the integrated switch, which interrupts the circuit and opens the contacts. The current rating of the breaker is determined by the set points of the bimetal strip and the magnetic spring. If a fault is detected, the breaker should be reset manually. It is also possible to reset the breaker remotely using a dry contact connection.

The LEGBX66-37184-20-V is a single pole circuit breaker with a trip flag, which indicates whether the breaker has tripped due to an overload or short circuit. It is also equipped with an adjustable overcurrent trip point. This feature allows the circuit breaker to be customized for use in applications that require specific trip settings. The trip point can be adjusted from 10% to 110% of the nominal rating, allowing the circuit breaker to be adjusted for specific application requirements.

Conclusion

The LEGBX66-37184-20-V circuit breaker is a versatile and reliable device used to protect the electrical equipment in residential, commercial, and industrial settings. It is based on a thermal-magnetic design, which senses overloads and short circuits and responds by opening the contacts, interrupting the circuit. It is also adjustable, allowing it to be tailored to suit the needs of a specific application. It is easy to install and can be used in both AC and DC settings.