Rule 35A Rule-A-Matic Compact Automatic Bilge Pump Float Switch

The Rule 35A Automatic Bilge Pump Float Switch is a compact, narrow-profile float switch designed to provide dependable automatic control of bilge pumps in both standard and confined bilge spaces. Its slim design makes it particularly suitable for narrow bilges where larger float switches cannot be installed.

Featuring a patent-pending snap switch mechanism tested to over 1,000,000 cycles, the Rule 35A delivers long-lasting, reliable operation while preventing rapid on/off cycling. Its mercury-free design is environmentally friendly, and the moisture-tight construction with abrasion-resistant marine-grade wiring ensures dependable performance in harsh marine environments.

The float switch automatically activates the bilge pump when the water level reaches approximately 51mm (2") and switches it off when the water level falls to 19mm (¾"), helping keep your bilge dry without unnecessary pump operation.

• Compact, narrow-profile design for confined bilge spaces
• Ideal for narrow bilge installations
• Automatic bilge pump control
• Patent-pending snap switch mechanism
• Tested to over 1,000,000 switching cycles
• Prevents rapid on/off cycling
• Mercury-free environmentally friendly design
• Moisture-tight seals for long service life
• Marine-grade abrasion-resistant blocked wire
• Ignition protected to ISO 8846 Marine standard
• Suitable for 12V and 24V DC systems