Surge Protection

A surge protector , also know as a transient voltage surge suppressor, is a device within an electrical circuit that has been designed to help protect electrical devices within the electrical circuit from voltage spikes (transient voltages). Voltage spikes can be extremely damaging to electrical equipment and a surge protector deals with these by either blocking the spike by using inductors, shorting or by using capacitors. Inductors inhibit sudden changes in current, while capacitors inhibit sudden voltage changes. While shorting is achieved using spark gaps, discharge tubes, metal oxide varistors (MOVs) and Zener semiconductors which conduct when a voltage threshold is reached.

Where are Surge Protectors used?
Surge protectors can be found in many electrical installations both in single and 3 phase versions, protecting process control and automation systems, power distribution panels or other similar industrial and commercial electrical supply systems. Surge protection devicess (SPDs) are typically available in a variety of mounting options including DIN rail and panel mount versions and also as a screw-in accessory for contactors amongst others.

Kempston Controls stocks a wide and varied range of power supplies from market leading manufacturers such as ABB, Eaton, Siemens, Citel and many more to cater for all your surge protection requirements. Give our dedicated sales team a call on +44 (0) 1933 411411 or use the contact form above to discuss your circuit protection requirements.


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