Attwood S3 Automatic Bilge Switch 12vDC 15 Amp

The Attwood S3 Automatic Bilge Switch (Model 4801-7) offers reliable, hands-off bilge pump control for 12V systems, ideal for boaters seeking worry-free bilge management with a simple, maintenance-free installation.

• Amperage capacity: 15A
• Input Voltage: 12V DC
• Sensing technology: Electronic sensing detects bilge water levels and distinguishes water from splashes, foam, sludge, and chemicals to prevent unnecessary cycling
• Sealed electronics: Fully sealed to protect against water and chemical damage
• Ignition protected & RoHS compliant: Marine safety and environmental compliance
• Maintenance-free design: Rugged construction with no moving parts that can jam, wear, or fail
• Flexible mounting options: Mounts to the bilge floor, directly to a stringer wall, or alongside the pump basket without extra components or brackets
• Compatibility: Direct compatibility with all competitive products for easy upgrades or replacements
• Reliability in diverse bilge conditions: Engineered to operate with many water types and prevent unnecessary cycling as conditions change
• Dimensions: 3 3/16"H x 1 5/8"W x 2 11/16"H

By automatically activating your pump only when real bilge water is present, the S3 reduces wear and energy use while protecting your vessel from flooding. The proprietary sensing minimizes nuisance cycling caused by splashes or foam, and sealed electronics resist corrosion and chemical exposure in harsh marine environments. With flexible mounting and broad compatibility, installation is straightforward and future-proof for a wide range of boats and pumps.