Replacement float switches for johnson pump bilge pumps turn on when bilge water levels reach 4 cm inches of water and off at 34 cm inches. Even if it works daily it works at least for 5 years if it works 2 days once than it works at least for 10 years definite.
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3 wire float switch. If the float switch operates a pump connect the lead to the wall outlets plug wire or the wire connected to the circuit breaker. Theres also a cool feature of wiring your bilge pump float switch like this. Then screw a wire nut over the ends of the. 4 i give u a better idea if you want an exact level controller with this float switch use a pvc pipe 12 or 34 inch pipe cut it to the required length as per your tank height insert the wire through the centre of the pipe glue it water tight now fix the weight above the pipe and now it works exactly to the level you need. Lets start with the most basic float switch. Neon gate float switch with 3 meter wire for water level control operation nonc contacts available in single float switch use it as sensor for water level controller both no and nc contacts are available.
A two wire single pole single throw float switchthe rising action of the float can either close ie turn on a normally open circuit or it can open turn off a normally closed circuitinstallation scenarios might include a normally open float switch turning on a pump to empty a tank control schematic 2 or a normally closed float switch turning off a pump that fills a tank control schematic 1. Then cover them with a wire nut. 3 wire setup to a 2 wire switch i assume this 2 wire switch has a float switch in it. In auto mode either auto on the auto off man switch or the off on an on off switch whenever the float floats you get a bilge running indicator on the switch. 3 wire pump to two wire switch however in reverse what hes suggested would put both a switched and constant power to the power input of the switch. Step 4 twist the end of the second float switch lead to the appliances load wire.
If the float switch protects an air conditioning system disconnect the furnaces transformer wire that connects to the red thermostat wire and then connect the float switch lead to the transformers wire. This float can be used in hard water or fuel such as diesel kerosene oil etc completely. If not then its simply a manual pump and the connection direct to the battery is unnecessary. 15 amp float switches are made from high impact plastic are fully submersible and have an 18 month.
Gallery of 3 Wire Float Switch
