The Rule Mate RM1100B Automatic Bilge Pump is designed to deliver high-capacity performance in a compact footprint. Featuring integrated level sensing, this 12V submersible pump eliminates the need for a separate float switch—automatically activating at 2" (5cm) of water and shutting off at just 3/8" (0.9cm).
Ideal for medium to larger leisure vessels, the RM1100B offers powerful 1100GPH (4164 LPH) flow and is engineered for maximum reliability. Built-in thermal cut-off protection safeguards the motor and vessel during extended operation.
Its intelligent backup sensor system detects if oil or debris blocks the water sensor. When blocked, it reverts to a timed 2.5-minute cycle mode to maintain bilge dryness until the sensor clears and resumes normal operation.
Key Features:
12V DC, 3.8A draw (7.5A fuse)
Flow rate: 1100GPH (800GPH @ 1m head, 500GPH @ 2m head)
Outlet: 25mm (1") & 28mm (1-1/8") hose barbs + 25mm NPSM thread
ISO 8846 & ISO 8849 marine compliant (ignition & bilge standards)
Compact design: 130mm (L) x 112mm (H) x 73mm (W)
Includes non-return check valve and 60cm wire lead
Recommended for discharge heads up to 3 metres