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Metal Oxide Varistors
Electrical Power Generation

Our AZA Series of MOV (metal oxide varistor) assemblies offers customised options for the overvoltage/surge protection of DC exciters and similar or allied systems. A wide range of Continuous Operating Voltages and system energies can be accommodated in robust and compact assemblies. These can be supplied as discrete units or configured on mounting plates for direct installation.

Product Code Description Datasheet
AZA AZA Series
  – Bespoke designs used for the protection of DC Exciter supplies.
 AZA-series.pdf

Electrical Power Distribution

We provide a range of Medium Voltage silicone housed Surge Arresters (ASM) and a unique complementary range (ASI) which functions as an arrester and support Insulator. Our SVL series provides protection from over-voltages on cable sheaths by the cross-bonding of the sheaths and the ground continuity conductor.

This range of 10kA Class 1 distribution arresters are fully tested and approved to EN60099-4 : 2004 and IEC61109 : 1999.
Numerous assembly accessories are available, details upon request.

Product Code Description Datasheet
ASI Combined Tension Insulator & Surge Arrestor
– Applicable to MV distribution systems and approved to EN60099-4 : 2004.  Rated Voltage range can be extended on demand. 		ASI-Rev04.pdf
ASM Silicone Housed Gapless Surge Arrestor
  – Applicable to MV distribution systems and approved to EN60099-4 : 2004.  Rated Voltages from 5.0 to 45.0kVrms.  Various termination accessories available.
 ASM-Series.pdf
SVL Sheath Voltage Limiting Series
 – Sheath Voltage Limiters to suppress induced voltages in cable sheaths.  Detail on the numerous ratings available on request.		 SVL-Series.pdf