Rule 40A Float Switch 20 Amp

Sleek and rugged, the Rule-A-Matic Plus float switch has a strong, fully integrated, impact resistant cover that protects against debris and jamming. It features 14 gauge highly abrasive resistant marine grade wire and a built-in test feature. Designed for pumps drawing up to 20 Amps.

A standard bilge pump operates by a control switch that senses water and activates the pump. Rule’s Float Switches offer outstanding performance. We use extra-large float chambers for increased buoyancy and detachable mounting bases that make them easier to install and remove for cleaning and inspection. 

Rule also produces the ECO-switch, which operates when rising bilge water levels increase air pressure. All switching gear is located outside of the bilge in a sealed, compact unit.