Rule 35A Rule-A-Matic Automatic Bilge Pump Float Switch, 12/24 VDC, 14 Amp

The Rule 35A Rule-A-Matic Bilge Pump Float Switch automatically turns a submersible bilge pump on and off based on rising and falling water levels, so an unmanned bilge compartment stays managed without manual checks. The switch activates the pump when water reaches 2 inches and turns it off once the level falls to 3/4 inch, giving consistent, hands-free protection against water accumulation in the bilge.

Built for continuous marine service, the Rule-A-Matic uses 14 gauge highly abrasion-resistant, marine-grade blocked wire along with exclusive moisture-tight seals to resist corrosion and moisture intrusion. Its switch design is engineered to prevent rapid on/off cycling, which reduces wear on the connected bilge pump. The float mechanism is mercury-free and is tested to over one million cycles for long-term reliability. For best performance, install the Rule-A-Matic on a flat surface within the bilge compartment.

This float switch is rated for 12/24 VDC systems and is suitable for use with any submersible bilge pump drawing up to 14 Amps. It is backed by a 2 year warranty.

Specifications

• Brand: Rule
• Manufacturer Part Number: 35A
• Type: Float Switch
• Voltage: 12/24 DC
• Amp Draw: 14 amp at 12V, 7 amp at 24V
• Maximum Pump Draw Supported: 14 Amps
• Activation Water Level: 2 inches
• Deactivation Water Level: 3/4 inch
• Dimensions: 4-1/2 in L x 1-1/2 in W x 2 in H
• Weight: 0.4 pounds
• Wire Type: 14 gauge marine-grade blocked wire
• Mercury Content: Mercury-free
• Cycle Testing: Tested to over one million cycles
• Warranty: 2 years
• UPC: 042237095435

Fitment

Suitable for use with any submersible bilge pump drawing up to 14 Amps.

Frequently Asked Questions

What does the Rule 35A Rule-A-Matic Bilge Pump Float Switch do? The Rule 35A Rule-A-Matic Bilge Pump Float Switch automatically turns a bilge pump on and off based on water level, so the bilge is managed without manual operation.

At what water level does the Rule 35A switch turn the pump on and off? It activates the bilge pump when water reaches 2 inches and turns the pump off when the water level falls to 3/4 inch.

What size bilge pumps can the Rule 35A float switch be used with? The Rule 35A is suitable for use with any submersible bilge pump drawing up to 14 Amps.

What voltage systems is the Rule 35A compatible with? The Rule 35A Rule-A-Matic operates on 12/24 VDC systems, drawing 14 amps at 12V and 7 amps at 24V.

Does the Rule 35A float switch contain mercury? No. The Rule 35A is a mercury-free float switch.

How durable is the wiring on the Rule 35A switch? It uses 14 gauge, highly abrasion-resistant, marine-grade blocked wire with exclusive moisture-tight seals for long-term durability in wet bilge environments.

Does the Rule-A-Matic 35A prevent rapid pump cycling? Yes, its switch design is built to prevent rapid on/off cycling, reducing unnecessary wear on the connected bilge pump.

What are the dimensions of the Rule 35A float switch? The Rule 35A measures 4-1/2 inches long by 1-1/2 inches wide by 2 inches high.

How much does the Rule 35A float switch weigh? The Rule 35A Rule-A-Matic Float Switch weighs 0.4 pounds.

How reliable is the Rule 35A float switch over repeated use? The Rule 35A is tested to over one million cycles, reflecting its long-term reliability for automatic bilge pump control.

Where should the Rule 35A float switch be installed? It is recommended that the Rule-A-Matic 35A be installed on a flat surface in the bilge compartment for maximum performance.

What warranty comes with the Rule 35A Rule-A-Matic switch? The Rule 35A Rule-A-Matic Bilge Pump Float Switch includes a 2 year warranty.