ESP M2/M4 Series

The ESP M2/M4 Series is a combined Type 1, 2 and 3 tested protector (to BS EN 61643) for use on the main distribution board directly feeding electronic equipment such as computers, communication and control equipment, particularly where a structural Lightning Protection System (LPS) is employed.

For use at boundaries up to LPZ 0 to protect against flashover (typically the main distribution board location) through to LPZ 3 to protect sensitive electronic equipment.

Features & benefits

  • Very low let-through voltage (enhanced protection to IEC/BS EN 62305) between all sets of conductors (phase to neutral, phase to earth, neutral to earth - Full Mode protection)
  • Full Mode design capable of handling high energy partial lightning currents as well as allowing continual operation of protected equipment 
  • Innovative multiple thermal disconnect technology, for safe disconnection from faulty or abnormal supplies (without compromising protective performance)
  • Three way visual indication of protection status
  • Advanced pre-failure warning so you need never be unprotected
  • Remote indication facility allows pre-failure warning to be linked to a building management system, buzzer or light
  • Changeover active volt-free contact enables the protector to be used to warn of phase loss (i.e. power failure, blown fuses, etc.)
  • Unique flashing warning of potentially fatal neutral to earth supply faults (caused by incorrect earthing, wiring errors or unbalanced conditions)
  • Robust steel housing
  • Protector base provides ultra low inductance earth bond to metal panels
  • Convenient holes for flat mounting
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