IULHK111-1REC4R-66F-15.0-E-91

Circuit Breakers

IULHK111-1REC4R-66F-15.0-E-91, or simply known as IULHK, is a type of circuit breaker manufactured by Invensys. It is designed to be used in many different applications in various industrial and commercial settings.

Application Field

The IULHK circuit breaker is mainly used for short circuit protection applications in low voltage systems. It is most commonly used in lighting, motor, and transformer circuits, as well as other related electrical circuits. It can also be used in power generation, inverter systems, and HVAC systems. Furthermore, the IULHK circuit breaker is designed to meet the both UL 489 and ANSI C37 standards.

Working Principle

The IULHK is a thermal-magnetic circuit breaker. It is composed of a thermal overload relay and a current contact trip device. The thermal overload relay is responsible for tripping the breaker when it detects an over-current, and the contact trip device is responsible for tripping the breaker when it senses a magnetic force. When the breaker senses an over-current, it automatically trips and cuts the current off.

The IULHK is also designed with an adjustable rated operational current. This allows the breaker to be easily adjusted according to the requirement of the application. Furthermore, the IULHK circuit breaker also features a reset button, which enables the user to easily reset the breaker after it has tripped. The IULHK is also designed with a manual reset switch, which enables the user to manually reset the breaker when necessary.

The IULHK circuit breaker is also designed to have a high short circuit tripping capacity, which ensures that the breaker can handle large amounts of currents and still protect the electrical system from over-currents and short circuits.

Conclusion

The IULHK circuit breaker is a well-designed, reliable, and robust breaker that is specially designed to protect electrical systems from damaging short circuits. It is highly adjustable, and it has a high short circuit tripping capacity and manual reset switch which allows the user to manually reset the breaker if needed.