IULHK3111-26761-3 Circuit Protection

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Circuit breakers are devices that can disconnect circuits from the power supply to prevent damage to them due to overloads, short circuits, or other fault conditions. The IULHK3111-26761-3 is one such circuit breaker. In this article, we will discuss the application field and working principle of the IULHK3111-26761-3.

Applications

The IULHK3111-26761-3 is a two-pole miniature circuit breaker rated for 16A and designed for use in single-phase 230/400VAC systems. It is type A and has a rated ultimate short-circuit capacity of 10kA. It can be used to provide protection from overcurrent, overload, and short circuit in households and small buildings, as well as in industrial and commercial applications. It complies with EN 60947-2, IEC/EN 60947-2, and VDE 0660 standards. It is also suitable for high-power applications such as switching street lighting and HVAC systems.

Working Principle

The IULHK3111-26761-3 works by using a combination of two principles: thermal-magnetic and differential protection. Thermal-magnetic protection works by measuring the current flow in the circuit. When a predetermined threshold is exceeded, an electromagnet is activated which trips the circuit breaker, breaking the connection between the circuit and the power source. The differential protection works by comparing the current entering the circuit with the current leaving the circuit. If there is an imbalance between the two, it indicates a fault in the circuit and the circuit breaker trips.

The IULHK3111-26761-3 also includes a number of features designed to protect the device itself. These include a temperature-switch that will shut off the power if the device gets too hot, and a transverse magnetic field that can detect and alert operators of any magnetic fields that may interfere with the device\'s operation. In addition, the device has a built-in protection system that monitors the current and will trip the breaker if it is exceeded.

Conclusion

The IULHK3111-26761-3 is a two-pole miniature circuit breaker rated for 16A and designed for use in single-phase 230/400VAC systems. It is type A and has a rated ultimate short-circuit capacity of 10kA. It can be used to provide protection from overcurrent, overload, and short circuit in households and small buildings, as well as in industrial and commercial applications. It works by using a combination of two principles: thermal-magnetic and differential protection. In addition, it has a number of features designed to protect the device itself.

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