Rule-A-Matic Float Switches Model 35A And 40A

Rule-A-Matic  Switches

Rule-A-Matic 12-24-32-VDC Float Switches Model 35A And 40A are by far the most popular choice among professionals worldwide, and the Rule-A-Matic is the best selling float switch in the world. Rule-A-Matic float switches are designed for use with fresh water and salt water ONLY. Use with any other hazardous, caustic, or corrosive material could result in damage to the pump and the surrounding environment, possible exposure to hazardous substances and injury. Rule-A-Matic float switches must be mounted equal to or above the pump base for positive shut-off. Keep all wire connections above the highest water level. Wires must be joined with butt connectors and a marine grade sealant to prevent wire corrosion. Always install proper fuse size to prevent damage to product should a short occur. Failure to install proper fuse could increase risk of pump malfunction potentially resulting in personal injury and/or fire hazard.


RUL-CTL-Float-Switch-Manual.pdf

Rule Pumps Rule-A-Matic 14 Amp 12-24-32  VDC Float Switch Model  35A (D)

Rule Pumps Rule-A-Matic 14 Amp 12 VDC Float Switch # 35A without fuse holder. includes a removable base for easy cleaning and servicing, a mercury free snap switch tested to over one million cycles and marine grade "blocked" wire. Manual testing feature allows for operations check. Use with pumps up to 14 amps. Environmentally friendly mercury-free design. NOT to be used with 110V applications

List: $39.32
Value Priced $25.80
Availability: ships the next business day
RUL-CTL-35A
Rule Pumps Rule-A-Matic Plus  20  Amp 12 -24-32 VDC Float Switch # 40A (D)<br>

Rule Pumps Rule-A-Matic Plus 20 Amp 12 VDC Float Switch # 40 without fuse holder. It has a strong, fully integrated, impact resistant cover, which protects against debris and jamming. Wires exit out on the top to keep them out of the water. Manual testing feature allows for operations check. Use with pumps up to 20 amps. Environmentally friendly mercury-free design. NOT to be used with 110V applications

List: $50.40
Value Priced $33.07
Availability: ships the next business day
RUL-CTL-40A

Questions & Answers

Where can I use the Rule-A-Matic switches?
These float switches are designed for use with fresh water and salt water ONLY. Use with any other hazardous, caustic, or corrosive material could result in damage to the pump and the surrounding environment, possible exposure to hazardous substances and injury.
Can I install this float switch without disconnecting the power to it?
Disconnect power from the system before working on the unit to avoid personal injury, damage to the surrounding environment and/or damage to the unit.
At what level should Rule-A-Matic switched be mounted?
Switch must be mounted equal to or above the pump base for positive shut-off.
How should the Rule-A-Matic switch be wired?
Keep all wire connections above the highest water level. Wires must be joined with butt connectors and a marine grade sealant to prevent wire corrosion.
Do I need to install a fuse in the system?
Always install proper fuse size to prevent damage to product should a short occur. Failure to install proper fuse could increase risk of pump malfunction potentially resulting in personal injury and/or fire hazard
How to wire a pump float switch directly to a battery?
Connect the Brown (Positive) wire from the pump to one Gray wire from Float Switch. Connect the other Gray wire from the Float Switch directly to Positive power supply (Fuse Protected). The Black (Negative) wire from the Bilge pump connects to the Negative battery terminal or Negative buss bar. Wire the pump directly to the power supply, this will ensure the pump has power if the power system on boat has been isolated.
How to wire a pump float switch to a two position panel switch?
One Gray wire from the float switch connects to the solid Brown (Positive) wire from Non-Automatic Bilge Pump. The Third wire needs to be connected and run directly to the two position Panel Switch. The other Gray wire should be connected directly to the Positive power supply (Fuse Protected). Connect the Black (Negative) wire to the Negative battery terminal or buss bar. Wire the Bilge pump directly to the power supply, this will ensure the pump has power if the power system on boat has been isolated.
How to wire a pump float switch to a three position panel switch?
One Gray wire from the Float Switch connects to the solid Brown (Positive) wire from Non-Automatic Bilge Pump. The third wire should to be connected directly to Manual side of Panel Switch. The other Gray wire from the Float Switch connects directly to the Automatic side of Panel Switch. Connect the Black (Negative) wire to Negative battery terminal or buss bar. Wire the Bilge pump directly to power supply, this will ensure that pump has power if the power system on boat has been isolated.
My float switch hangs up after sitting for a period of time. how do i clean it?
If the Rule-A-Matic float switches appear sluggish and or the float does not move freely, the pump operation may be intermittent or sporadic. This condition is usually the result of oil and or dirt accumulating in and around the movable parts of the switch. To correct, try soaking the entire switch in Sudbury Automatic Bilge Cleaner or Rule All Purpose Marine Cleaner for 10 minutes. Agitating several times and checking for free operation of the float, Repeat if necessary
How to install a float switch in a boat?
It is recommended you mount the float switch on a level platform although the float switch can be mounted up to a 15 degree angle. Note: Model 40 Float Switch if mounting fore and aft centerline of vessel, point wires to exit towards the stern.
How to wire a pump float switch directly to a battery?
Connect the Brown (Positive) wire from the pump to one Gray wire from Float Switch. Connect the other Gray wire from the Float Switch directly to Positive power supply (Fuse Protected). The Black (Negative) wire from the Bilge pump connects to the Negative battery terminal or Negative buss bar. Wire the pump directly to the power supply, this will ensure the pump has power if the power system on boat has been isolated.
How to wire a pump float switch to a two position panel switch?
One Gray wire from the float switch connects to the solid Brown (Positive) wire from Non-Automatic Bilge Pump. The Third wire needs to be connected and run directly to the two position Panel Switch. The other Gray wire should be connected directly to the Positive power supply (Fuse Protected). Connect the Black (Negative) wire to the Negative battery terminal or buss bar. Wire the Bilge pump directly to the power supply, this will ensure the pump has power if the power system on boat has been isolated.
How to wire a pump float switch to a three position panel switch?
One Gray wire from the Float Switch connects to the solid Brown (Positive) wire from Non-Automatic Bilge Pump. The third wire should to be connected directly to Manual side of Panel Switch. The other Gray wire from the Float Switch connects directly to the Automatic side of Panel Switch. Connect the Black (Negative) wire to Negative battery terminal or buss bar. Wire the Bilge pump directly to power supply, this will ensure that pump has power if the power system on boat has been isolated.

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