Zymax Advanced Surge Protection.

What do we do?

Zymax are a UK based company specialising in the design, manufacture and supply of quality, innovative surge protection devices for industrial customers. For over 25 years we have manufactured all of our products here at our UK factory.

The devices we manufacture are also commonly known as:

  • SPDs or Surge Protection Devices
  • Lightning Surge Arrestors
  • TVSS or Transient Voltage Surge Suppressor

We now have a comprehensive range for many applications, from AC mains voltage surge protectors and filters, data and phone line/DSL/SOGEA surge protectors and process transmitter protectors.

For more information on Zymax surge protection devices please see our products section here on this website, enquire via the contact page or call us now on +44 (0)1237 479797


Latest Surge Protection Solutions

Complete Surge Protection Solution pre-assembled in easy to fit enclosures. Application Specific.

Complete Application Specific IPU Integrated Protection Units

We can supply our complete range of surge protection devices pre-wired into IP55 or IP65 wall mount enclosures, making it easy for the installer. Mains surge protection comes complete with fused isolation for quick integration into your application. We can also fit cable entry glands and external earth bonding connections. Please enquire for competitive pricing.

ZM06 6A surge protector and filter with Zymax MMOV active monitoring

MMOV active status monitoring!

The complete Zymax ZM range of AC mains surge protectors include our unique Zymax MMOV continuous active status monitoring technology. This actively monitors the surge protection state and includes both a visual indicator and an audible alarm signal. These are ideal for installation within a system or in remote monitoring installations where the engineer may not always be on site and wants to check the devices installed. They also give status indication even before replacement is necessary, allowing for preventative maintenance and minimising downtime.

ZA series coax/antenna surge protector on a wall mounting bracket

Coax/Antenna Protection

ZA range of high energy antenna/coax surge protectors. Ideal for protecting radios in 4G wireless monitoring installations. TNC version shown in photo mounted onto an optional ZAWALL wall/panel bracket. Standard M5 bolt supplied for fixing direct to a panel. Also available in versions with N type (both 50 & 75 ohm), BNC and new for 2023, SMA terminations.

mZD series small footprint surge protector for PSTN/ADSL

IP67 PSTN/ISDN/ADSL surge protector

PSTN/POTS/xDSL surge protector, where a very small footprint or no DIN rail is available and IP67 ingress protection rating is required. Supplied complete with glands and external M5 earth connection. Easy to install IDC wire termination. Ideal for protecting modem/xDSL monitoring lines at remote sites.

Lightning Storms

Every day there are around 3 million lightning flashes and that's approximately 45 strikes every second!. The most lightning hit place on earth is Lake Maracaibo in Venezuela, which can receive around 40,000 strikes per night!