A device that protects hardware, such as systems, subsystems, circuits, and equipment, from voltage or current surges produced by lightning or electromagnetic pulses. Note: If the hardware is adequately protected, associated software may also be adequately protected. Synonyms surge protective device, surge suppressor.

(n) a restraint that slows airplanes as they land on the flight deck of an aircraft carrier

 - Short for Surge Arrester, a device that limits surge voltage by diverting it.

A nonlinear device to limit the amplitude of voltage on a power line. The term implies that the device stops overvoltage problems (i.e. lightning). In actuality, voltage clamp levels, response times a [..]

a device to impede the flow of large dust particles or sparks from a stack, usually screening at the top.

A device that limits surge voltages on equipment by discharging or diverting surge current, thereby preventing the build up of excessive voltage on the equipment.

Components, devices or circuits used to attenuate, suppress or divert excess electrical (surge and transient) energy to ground. The terms arrester, suppressor and protector are used interchangeably ex [..]

A device that protects hardware, such as systems, subsystems, circuits, and equipment, from voltage or current surges produced by lightning or electromagnetic pulses. Note: If the hardware is adequately protected, associated software may also be adequately protected.

Surge Arrester, or Lightning Arrester. Lightning arresters are devices for protecting many different pieces of equipment such as, power poles and towers, power transformers, and circuit breakers from [..]

A device placed from phase to ground, or phase to phase, whose nonlinear impedance characteristics provide a path for high-amplitude transients.