Attwood 42027 Auto Float Switch Only 12V +

Attwood 42027 Auto Float Switch Only is designed to help convert compatible bilge pump setups to automatic operation. This sealed, mercury-free float switch features an integral cover to help manage bilge sloshing and debris interference for more consistent switching.

Key Features

• Mounts on any surface from horizontal up to a 24 angle
• Wire leads do not flex or hinge with the float like some competitive models
• Integral cover helps dampen bilge sloshing and filters debris
• Sealed switch mechanism resists moisture, fume-ignition, and electrical shock
• Mercury-free design
• 3-Year Warranty

Product Compatibility

• Marine bilge pump systems (as an automatic float-switch conversion component)
• Use with 12V pump circuits where an auto float switch input is required
• Use in bilge compartments where moisture resistance and sealed switching are required

Product Details

• Auto Float Switch (Switch only)
• Model / Switch number: 42027
• SKU: 23-42027
• Voltage: 12V
• Manual-to-automatic style installation for compatible bilge pump setups
• Mounting angle range: horizontal up to 24
• 3-Year Warranty

Parts Desk Insights

Best Use Case: Ideal as a sealed, mercury-free float switch option when youre upgrading a bilge pump arrangement and want the switch to resist moisture and debris effects.

Common Issues: If the float does not actuate reliably, check that the switch is mounted within the recommended angle range, confirm the float moves freely without obstruction, and ensure debris doesnt interfere with the float cover/area around the switch.

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