S3 Digital Bilge Switch 12V

The S3 Digital Bilge Switch 12V from Attwood is an electronic bilge pump switch designed to automate bilge pumping while helping reduce continuous cycling.

Key Features

• Fully sealed electronics help protect against water and chemical damage
• Mount on the floor of the bilge or directly to a stringer
• Designed with proprietary electronic sensing technology (no moving parts)
• Compatible with 12V bilge pump systems
• 5-year warranty
• Compact overall size: 2.73″ H x 3.16″ W x 1.68″ D

Product Compatibility

• 12V DC bilge pump automatic operation (switches a compatible bilge pump to automatic cycling)

Product Details

• Product: S3 Digital Bilge Switch 12V
• SKU/Part Number: 23-48017
• Voltage: 12V
• Dimensions: 2.73″ H x 3.16″ W x 1.68″ D
• Type: Digital/electronic bilge switch with fully sealed electronics
• Warranty: 5-Year warranty

Parts Desk Insights

Best Use Case: Ideal for replacing a mechanical float/older-style switch when you want a sealed, no-moving-parts electronic sensing design for bilge automation.

Common Issues: If your bilge pump cycles too frequently, confirm the switch mounting location and bilge water conditions, and inspect wiring and the fuse/connection points per the installation instructions. Also ensure the switch is oriented and installed so it can sense bilge water consistently.

Related Products & Accessories

• Browse Bilge Pumps – Pair with a compatible bilge pump for automatic operation.