This pump switch is in the off postion when the float is at the bottom of its housing. When the magnetic float rises 1-1/4" the switch turns on the pump. If the pump cannot remove the water as fast as it is coming in and the float rises another 1" then the alarm circuit is activated. The alarm circuit is normally open (and can carry a current limited to 100mA max). Switches with a normally closed alarm circuit (used on Bertram boats) can be special ordered.
Relay output: 30 amp relay, 15 amp pump load
Non magnetic stainless steel bracket; allows for direct mounting on bulkhead or submersible pumps
Ignition protected; UL listed
Positive acting, no timer delays, no electronics
Impervious to all materials commonly found in bilges
Switch components completely sealed against moisture
Extra long wire leads with sealed adhesive wall heat shrink wire connectors
Patented design provides maximum immunity to clogging, sticking, or pump burnout
Wiring instructions permanently stamped on switch
Exceeds U.S. Coast Guard Standards
Lifetime warranty
Optional alarm system available
Note: switch only, pump not included