Lightning current arrester for 400/690 V systems

10 May 2016

Phoenix Contact has introduced a pluggable type 1 lightning current arrester with integrated backup fuse for nominal voltages of up to 400/690 V.

These protective devices are based on Safe Energy Control (SEC) technology and feature a line-follow-current-free spark gap.

The lightning current arresters can save space by up to 66% when compared to conventional installations which consist of surge protection and a separate fuse. By dispensing with the separate arrester backup fuse, users benefit from a solution that is up to 20% more cost-effective.

The devices push-pull locking mechanism allows the protective plugs to be quickly removed during maintenance work. At the same time, the locking mechanism holds the plug securely in the base element in the event of a fault or strong vibrations.

The new type 1 arresters are said to be suited to use in wind turbine generators. They are also used to protect frequency inverters in applications with high-power motors, such as power stations or mining.

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