IULHK12-2R-29387-3

Circuit breakers are widely used in industrial, commercial and residential settings to provide protection against power surges and high current circuits. The IULHK12-2R-29387-3 is a type of circuit breaker that is designed to provide reliable and effective protection against dangerous faults in electrical installations. It has a variety of features and applications, and is capable of effectively breaking large short-circuit currents and intermittent faults which can threaten the safety of personnel, buildings, and electrical components.

Design and Features

The IULHK12-2R-29387-3 circuit breaker is a three-pole breaker that is UL Listed and CSA certified for branch-circuit protection. It is suitable for use in either single or three-phase applications. Its voltage rating is 240V for single and 480V for three-phase applications. This breaker features quick-make, quick-break contacts which are designed to trip before the maximum voltage is reached, preventing overloads and short-circuits from damaging the circuit.

The IULHK12-2R-29387-3 circuit breaker also features a self-acting, adjustable, thermal-magnetic trip unit. This trip unit is designed to detect temperature and current levels, and will trip the breaker if either exceeds safe levels. This helps to prevent dangerous thermal runaways from occurring. It also has several adjustable features, including trip current, trip time delay, and reset time.

Application Fields

The IULHK12-2R-29387-3 circuit breaker is perfectly suited for branch-circuit protection, as it is designed to provide reliable and safe protection against dangerous electrical faults. It is also perfect for applications such as motor control, industrial control systems, and lighting control, due to its adjustable trip unit. This makes it an ideal choice for commercial and industrial settings which require reliable and effective circuit protection.

Working Principle

The IULHK12-2R-29387-3 circuit breaker is a three-pole breaker with quick-make, quick-break contacts that are designed to trip before the maximum voltage is reached. Inside the circuit breaker, there is a thermal-magnetic trip unit which detects both temperature and current levels, and trips the breaker if either of them exceeds their safe levels. This helps to protect personnel, buildings, and the circuit from dangerous overloads and short-circuits.

The IULHK12-2R-29387-3 circuit breaker is an ideal choice for branch-circuit protection, motor control, industrial control systems, and lighting control. It features adjustable trip current, trip time delay, and reset time, allowing it to adapt to a variety of applications. It is UL listed and CSA certified, making it an excellent choice for industrial and commercial settings which require reliable and safe circuit protection.