MA4000 range

MTL Instruments design and manufacture a wide range of protection solutions for all of your system surge protection requirements. They offer a wealth of over 50 years experience in the surge protection industry. Their surge products embodies the strengths of Telematic, a name synonymous with the water industry, and Atlantic Scientific, which has strong ties in the network, ITS and wireless infrastructure markets.

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Although designed specifically with bussed systems in mind, the MA4000 range is available in a range of voltage options (24Vdc,48Vdc,110Vac and 230Vac) making it universally suitable for protecting power supplies in hostile environments. These 20kA rated, single phase devices provide protection for AC or DC power supplies with no restriction to the amount of load current. Connected in parallel via flying leads, MA4000 devices are easily connected to the power supply. The robust IP53 (NEMA 13) rated enclosure is simply ‘wall mounted’ via the four fixing points provided. Self-certified to ATEX 2014/34/EU for mounting into Zone 2, Category 3G hazardous areas, the MA4000 is especially useful for protecting the next generation of Hazardous Area mounted control systems.

  • AC or DC applications
  • Straightforward and simple installation – wall mounting
  • Remote monitoring plus dual redundancy
  • Fieldbus compatible
  • ATEX Category 3G certified


Product Code Description Downloads
intrinsically safe logo
Symbol denotes that the equipment is suitable for use in hazardous area applications.
fsm logo
Symbol denotes that the product has been assessed for functional safety applications
MA4000 range Universal protection for power supplies in hostile environments Datasheet  Manual