Sleek and rugged, the Rule-A-Matic Plus float switch has a strong, fully integrated, impact resistant cover, which protects against debris and jamming. 14 gauge highly abrasive resistant marine grade wire, and a built-in test feature. Designed for pumps drawing upt to 20 Amps Model 40A now includes a 2 year warranty. Specifications: Voltage 12, 24 or 32 Vdc, Max. Amp Draw 20amps, Size(Length x Width x Height) 4 7/8 x 2 1/2 x 2 3/4 inches.