Prevents dry running damage to electromagenetic clutch pumps. The vacuum switch automatically shuts off the power to the pump when the bilges are clear of water, saving the impeller from dry running damage.

• Suitable for 12 volt or 24 volt DC pumps up to 15 amp
• The pump can be started manually with lever on switch or remotely
• Simply mounts on suction side of pump between bilges and pump.
• Some pumps have an integral mounting point for the vacuum switch
  
  NOTE: Vacuum switch is NOT ignition protected (can spark) - do NOT install in bilge area or where flammable vapours are present.