Surge Protection Devices are an essential component of every electrical / electronic system as they work to protect against transient surge conditions. Lightning and surge protection units when installed will cater all the safety needs of your home or business. Commonly observed gradual but severe damages of electric / electronic equipments in your households and workplaces is mainly due to phenomenon of power surges that can cause deadly electrical safety problems. Surges or transients is increase in previously steady voltage which is a case of regular happening and on that account installing surge protection devices of proper rating would help.

Causes of surges and SPD Classifications can be linked together which is as follows:

Surges induced due to lightning strikes – Distant or nearby, lightning strikes amounts to billions of volts that when entered inside the facility via overhead cables or transmission lines has the greatest destructive potential. The primary unit Class B/Type 1 is installed at mains as per IEC 61643-11 at the service entrance for acting against harmful lightning electromagnetic pulses i.e. Waves of 10/350µs directly effecting your facility.

Surges induced from switching activity – switching electromagnetic impulses are induced within the electric devices due to the frequent switching activity for which Class C/Type 2 SPD is installed at equipment level as per IEC 61643-21. For equipment susceptible to both lightning and switching surges, we have Class B + C/Type 1 + 2 SPDs for dual protection integrated with advance protection characteristics to prevent both lightning and switching surges.

About 80% of surge activities are generated internally for which we have point of use protection modules. Here we explain you yet another special category of SPD called as Class D Protectors or Application specific Surge Suppression modules designed for Telecommunication Industry, AC/DC power lines, Signaling and Communication Devices, Security and Surveillance System, Data Lines, LED Luminaires, Solar Industry, Oil and Gas pipeline industry, etc. are some of the industry for which specific surge protection devices are designed.

The approach is simple, you need to just plug your machinery / devices into specific surge protector intended to afford protection from electric surges and spikes in turn protecting your resources. From the vast array of surge protection devices and the ratings, you should be able to sort through and determine the exact protection unit as per the application.