Power Assemblies and Controllers

Surge Arresters

Enerdoor's Surge Arrester Series has been specifically designed to offer surge protection for electrical equipment. Surge arresters are installed at the front end of a system for the purpose of diverting harmful overvoltage transients caused by external (lightning) or internal (switching) events to ground safely.

Also known as Surge Protection Device (SPD), or Transient Voltage Surge Suppressor (TVSS), Enerdoor surge arresters protect against electrical transients resulting from lightning strikes that find their way onto electrical conductors. 

Enerdoor provides a range of nine types of Surge Arresters: SM, BG (G) 25, BG (G) 50, BM (G) 12.5, EMG (G) 20, EMG (G) 40, EMG (G) 60, FINPR and FINPRS.

All models include remote contact, visual indicator, and comply with the UL 1449, IEC 61643-11, and VDE 0675 International Standards. DIN rail or screw mounting options are available with select models offering plug and play replaceable cards for quick and easy installation and replacement.

Enerdoor Surge Arrestors

Surge Arresters Brochure here 

View Enerdoor's complete product range here.  

For further information on Enerdoor's Surge Arresters, please call: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).


Enerdoor is part of The Enerdoor Group which consists of Enerdoor in North America and Europe; Finmotor and Finlab in Italy; and Eichhoff Elektro in Hungary.

The group is an international leader in the development and production of electromagnetic solutions for automated and industrial machinery.

The broad range of products include: EMI/RFI Filters, Motor Protection, Harmonic Filters, Line Reactors, Surge Arresters, Voltage Stabilizers and Customised Solutions.

Further information:

You can find further information on Enerdoor using the following links:

Tel: 01444 243 452

Fax: 01444 870 722

Email: enquiries@gdrectifiers.co.uk