Rule-A-Matic® Float Switch – Model 35A

The Rule-A-Matic® Float Switch is a reliable automatic bilge pump switch designed to activate your non-automatic bilge pump when water is detected in the bilge. Built for dependable marine performance, it automatically turns the pump on and off based on water level, helping keep your boat dry and protected.

Designed with a sealed, ignition-protected housing and non-mercury operation, this float switch delivers safe, environmentally responsible, and trouble-free performance in harsh marine environments.

Features:

• Automatic Pump Operation: Activates pump when water is present
• Pump ON at 51mm Water Level
• Pump OFF at 19mm Water Level
• Suits Most Non-Automatic Bilge Pumps: Compatible with all Rule non-automatic pumps except 3700 & 4000GPH 12V models
• Removable Snap-On Base: Easy installation, servicing, and cleaning
• Ignition Protected: Safe for marine applications
• Non-Mercury Design: Environmentally responsible operation
• Ultrasonically Welded & Sealed: Reliable moisture protection
• Moisture-Protected Wiring: Wiring exits from top to remain high and dry
• No Exposed Metal Parts: Reduces corrosion risk
• Low Power Draw: No unnecessary battery drain
• 2 Year Limited Warranty

Specifications:

• Model: 35A
• Base Footprint: 66mm x 45mm
• Length: 127mm
• Width: 45mm
• Maximum Load: 14A at 12V
• Maximum Load: 7A at 24V
• Maximum Load: 5A at 32V
• Wire Length: 28"
• Wire Gauge Size: 16

Description:

The Rule-A-Matic® Float Switch is one of the world’s most trusted automatic bilge pump switches, designed to provide reliable automatic pump control in marine environments. Its sealed construction, simple operation, and easy servicing make it an excellent choice for maintaining a dry and safe bilge system.

A dependable automatic float switch for use with non-automatic bilge pumps.