IULHK111-1REC4-42-40.0-01

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Circuit breakers play an important role in protecting electrical appliances, systems, and components from damages, overloading and other abnormal electrical effects. 

The IULHK111-1REC4-42-40.0-01 is a circuit breaker designed to provide reliable protection to electrical systems and loads. It is designed to detect overloading, short circuits and ground faults in applications where low voltage DC or AC circuits are being utilized. This circuit breaker is a UL 489 listed device, meaning that it complies with the Underwriters Laboratories safety standards. 

Application field

The IULHK111-1REC4-42-40.0-01 circuit breaker is suitable for a wide range of applications including but not limited to AC motors, high-energy low-voltage DC applications, variable frequency drives, pump systems, fans, lights, and other equipment. It is also suitable for residential, industrial, and light commercial applications. 

Working principle

The working principle of the IULHK111-1REC4-42-40.0-01 circuit breaker is based on the thermal-magnetic trip of a bimetallic strip. When the current flowing through the circuit breaker exceeds the rated value, the magnetic field created causes the bimetallic strip to expand, breaking the connection between the contacts and tripping the switch. The heat generated by the current also causes the bimetallic strip to expand, providing additional protection against overheating and overloading. 

The circuit breaker also includes an internal ground fault indicator. This feature constantly monitors the current flow and alerts the user if a ground fault is detected. The indicator also helps protect the circuit breaker from frequent false trips and ensures optimum operation. 

In addition, the IULHK111-1REC4-42-40.0-01 circuit breaker includes an auto reset feature. Once the fault is cleared, the switch will reset automatically without interruption to the load. This ensures safe operation and minimal downtime. 

The IULHK111-1REC4-42-40.0-01 circuit breaker is a reliable and cost-effective solution for protecting electrical systems and components from overloading and faults. Its compact size and ease of installation make it an ideal choice for a variety of applications. 

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