Three light emitters of the same color. Wide viewing angle. Power voltage 6 / 12 / 24 / 220 V.


Provides light signal emission for personnel warning during emergencies.

Intended for use in indoor and outdoor explosion hazardous zones of hazardous objects, on transport vehicles and vessels. Can be applied in conditions of atmospheric precipitations and sun radiation exposure.


  • housing made of aluminum alloy or stainless steel
  • various types of mounting devices for protective cable sheath (metal hose conduit, armored cable, pipe)

Design, principle of operation

The housing is manufactured of aluminum alloy with galvanic anti-corrosive and protective varnish-and-paint coatings. Cavity of housing is filled with epoxy compound. Bright multi chrystal LEDs with reduced viewing angle are placed on the front panel of the device. Cable fitting with two-wire round cable is placed on the bottom part of the unit housing. Cable is removable – screw terminal clamps are placed inside cable entry compartment. Connections diagrams are given at picture.

Nominal power voltage, light indicators glowing colour, glowing mode (flashing or glowing) and cable fittings sets are determined during order placement.

When the power is turned on, the LEDs start flashing, providing an emergency signaling. VS-4-3SN signal device has only a constant glowing mode at emergencies.