MD-4CCU12V Surge Isolator (12V)

Surge isolators will self destruct to immediately block high current from passing through when there is an excessive surge. It works much better than a common surge arrestor that will still allow current to pass through after it is burst by a high surge.


  • For Video-door-phone / keypad or Car-park / CCTV PT-control
  • Economical surge isolator for basic power surge protection.
  • Doesn’t need any extra ground wiring to use this surge isolator.
  • Will self destruct to protect the equipment if there is excessive surge.
  • Create an electrically isolated island to block any external surge.
  • World’s first lightning isolator.

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