Inrush Current Limiter

Inrush current limiters are devices used to limit the high initial current that flows into a circuit when it is first turned on. They are commonly used in electrical and electronic equipment to protect sensitive components from damage caused by excessive current.

In the supply class of electrical and electronic equipment components, there are several types of devices that can serve as inrush current limiters. These include fuses, arrestors, absorbers, and protectors.

1. Fuses: Fuses are safety devices that are designed to protect circuits from overcurrent conditions. They contain a metal wire or strip that melts when the current exceeds a certain level, thereby breaking the circuit and preventing damage to the equipment.

2. Arrestors: Arrestors, also known as surge arrestors or surge protectors, are devices used to protect electrical and electronic equipment from voltage spikes or surges. They divert the excess voltage to the ground, preventing it from reaching the equipment and causing damage.

3. Absorbers: Absorbers, also called transient voltage suppressors (TVS), are devices that absorb and dissipate transient voltage spikes. They provide a low impedance path for the excess voltage, protecting the equipment from damage.

4. Protectors: Protectors, also known as current limiters or current protectors, are devices that limit the amount of current flowing through a circuit. They can be used to protect sensitive components from excessive current during inrush or fault conditions.

These devices can be used individually or in combination to provide effective inrush current limiting and protection for electrical and electronic equipment. The specific choice of device depends on the requirements of the application and the level of protection needed.

It is important to consult the manufacturer's specifications and guidelines to ensure proper selection and installation of inrush current limiters for your specific application.