IELHK211-40672-30-V

IELHK211-40672-30-V application field and working principle

1 Introduction

IELHK211-40672-30-V is a circuit breaker manufactured by IEL of China, which belongs to the LV go door switchgear cabinet. It is suitable for AC 50Hz/60HZ, rated working voltage to 600V, rated operating current to the range of 8A-100A and breaking capacity to 5~10kA.

2 Application field

IELHK211-40672-30-V circuit breaker is widely used in factories, mines, industrial and mining enterprises, marine ships, high-rise building and high-voltage lines, commercial institutions, schools and household occasions for overload, short circuit, lack of phase, leakage and other protection. Especially suitable for places where the load current may cause the leakage protection to operate frequently. It can be used for load distribution, and also it can be used for motor feeder protection in ventilation, lift and the other machinery.

3 Working principle

IELHK211-40672-30-V circuit breaker operating principle is divided into two parts, namely, electromagnetic mechanism and the mechanical mechanism.The electromagnetic mechanism responds to overload and short circuit current to open the circuit breaker and keep the fault circuit breaker, which detects the temperature change of the electric wire in the time of overload, so it can expel the tripping coil which thus trips the handle, and then the circuit breaker will be open. The mechanical mechanism is used to reset and open the circuit breaker, which depends on the component of the handle, and the handle is controlled by the electromagnetic device. When it finishes the trip, the handle can be reset to its original position.