Switch - Heater (3-Speed)

B849S
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  • T Series
  • Y Series

This clever, four position switch allows you to convert a single speed heater fan motor in to a three speed motor by introducing a resistor coil in switch speed positions two and three.
Mounts through a 12mm hole in a panel up to 3mm thick. Bezel diameter 54mm.

WIRING: Terminal B - 12 V + supply.
Terminal M - To fan motor live.
Terminal C - To dashboard fan warning light.
Connect 12 V earth to fan motor as usual. Maximum 20 Amp load.

IMPORTANT:

THE RESISTOR COILS AT THE REAR OF THIS SWITCH WILL GET VERY HOT AND COULD MELT ANY NEARBY PLASTIC. ENSURE THERE IS ADEQUATE SPACE AND CLEARANCE AROUND THE BACK OF THE SWITCH.

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