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Rule-Mate RM1500A Automatic Bilge Pump

  • Flow Rate: 1500 GPH, Port Size: Threaded 1" NPSM (Hose Barbs Included *)
  • Nominal Voltage: 12 Volt DC, Current Draw: 4.8 Amps, Fuse: 9 Amp
  • Pump and Electronic Water Sensing Device in a Single, Compact Housing
  • Item #: 
    Model #: 

    RM1500A 12V

    Shipping Weight: 
    4.40 Lbs.
    Reg. Price:
    Sale Price:
    Status:    null In Stock

    Quantity : 


    • Powerful bilge pump and a new non-mercury float switch in a single housing
    • While fully automated, the pump will only turn on when the water level rises
    • There is no cycling and battery drain
    • The pump remains off until the internal float switch rises
    • The pump then stays on until the water is evacuated
    • The pump's internal computer senses no load (water) against the impeller and then shuts off
    • Quick release inlet strainer allows rapid cleaning
      • A detachable strainer provides easy access to the impeller area for removal of debris
    • For medium sized yachts and motor cruisers
    • Improved Switching with a Protective Mode
      • Upgraded of the on/off mechanism. The previous design activates the pump using a magnet in a float “cube” and a reed switch to sense the water around the pump
      • Water is sensed by an interruption in an electromagnetic field generated by the new circuit board
      • To turn the pump off, the circuit board senses the amount of work the motor is doing (via amp draw) and once the circuit board senses the motor is doing less work, the board turns off the pump
      • The circuit board includes a fail-safe feature which measures the amount of work the motor is performing and the length of time the motor is running
      • If debris, such as a wet paper towel, becomes lodged against the pump, it could “trick” the pump into thinking water remained in the bilge which could deplete the vessel's battery
      • When the circuit board senses the motor's running but not pumping water for longer than fifteen seconds, the pump will enter into a cycling mode in the same fashion as the computerized pumps
      • The pumps turn off and activate the motor every two and a half minutes and if it senses water, it will continue to run until the water has been removed from the bilge
      • After the debris is removed, the pump will automatically revert to the level sensing mode


    • Fully automated bilge pump with integral float switch
    • Tough plastic body
    • Low amp draw conserves batteries
    • Ignition protected
    • * Outlet Port Size: Threaded 1" NPSM with 1" and 1-1/8" Straight Hose Barbs Included
      • Optional 1" and 1-1/8", 90º Elbows Available (Sold Separately)
    • Dimensions: 6" H x 7-1/4" W
    • Power: 12 Volt DC
    • Draw: 4.8 Amps
    • Fuse Size: 9 amp
    • Output: Up to 95 liters/minute (21 gallons/minute)
    • Outlet: Threaded 1" NPSM port
      • Accepts the included 1” and 1-1/8” hose barb ports as well as the optional 1” and 1 1/8” 90º elbows (sold separately)
    • Max. recommended discharge head 2 meters
    • Replaces: Rule RM-1500

    Rule Pumps Carry a Three-Year Warranty from the Date of Purchase

    Documentation available at the following links:

    Rule-Mate Oval Replacement Strainer Base
    Item #: 506404
  • Applications: Large Rule Mate Pumps - 1500 GPH and 2000 GPH
  • Material: Plastic, Color: Blue
  •  Include
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    Model #:
    Trident 147 Vac XHD Bilge / Live Well Hose - 1-1/8"
    Item #: 503534HID118
  • Diameter: 1-1/8" ID, Color: Clear With Black Helix
  • Material: Extra Heavy Wall Vinyl with Helix, Tolerance: 10° F - 120° F
  • Sold by the Foot, Excellent Durability, Flexibility and Bend Radius
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    Model #:
    Rule 3-Way Lighted Rocker Panel Switch
    Item #: 506493RSW12V
  • 3-Position Rocker Switch (Automatic / Off / Manual) with Indicator Light
  • Nominal Voltage: 12 Volt DC, Max. Current Draw: 20 Amps
  • Controls Any Bilge Pump Equipped with an Automatic Float Switch
  •  Include
    Reg. Price

    Sale Price

    Model #:

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