surge protection solutions

- Jan 28, 2021-


Surge protection barriers provide protection for todays sensitive electronic instrumentation protection form the destructive effects of lightning and the transient surges that accompany this phenomenon, surge protections barriers are used in a wide range of applications including measurement and control, instrumentation, power and communication.

The undesired consequences of surges include both equipment damage and equipment malfunction or lockup. Damage occurs when excessive surge voltage flashes over or punctures semiconductor functions.

Semiconductor are also sensitive to accumulated over voltage stress.Successive surge chip away at the insulating layers in a process often referred to aselectronic rust. When the equipment finally fails it is often not attributed to surge because the accumulative minor events actually caused the failure rather than a recent catastrophic event such as a localized lightning strike.

Operation Principle

The surge protection barrier incorporates line to line and line to earth protection.This is achieved by integrating suitable switching elements into the surge protection barrier and guaranteeing proper connection to ground.Gas discharge tubes are used in the first switch stage of a surge protection barrier. They are able to clamp high voltage and divert high currents,but their slow response time still allow dangerously high energy levels to pass though.Therefore,a second element must be implemented to control the remaining energy. This silicon avalanche transient voltage suppressor diode type responds to lower voltage and current levels extremely fast, clamps the voltages to non-damaging levels,and diverts the surge currents to ground.Both protection stages are decoupled with inductance elements.

Surge protection barrier for standard and hazardous area application.

Protection for instrumentation,power and communications

Plug in design for terminal wiring reduction

Hybrid design incorporates protection for power surge and lightning transient protection