Control Panels
Surge protective device
SPD
Definition
A device that diverts transient overvoltage to ground, protecting equipment from lightning and switching surges.
At a remote site, protection belongs on incoming power, on the antenna lead, and on signal circuits leaving the building. Replaceable modules matter, because a device that has absorbed a strike has done its job and needs changing.
Also known as: surge suppressor, TVSS.
See also
Have a controls question? Contact Eric Sullivan directly.
863-698-8266