Alternator Closed Liquid Level Switch, Switch Function Selectable, Side Mounting, Tank Connection Size 1/2 in NPT, Max. Pressure 100 psi, VA Rating 30, Operating Temp. Range 266 Degrees F Max., Overall Length 3.74 in, Float Material PBT, Float Length 2.11 in, Float Dia. 0.65 in, Stem Material PBT, Stem Length 2.75 in, Height -, Width 0.6 in, Contact Form SPST, Max. Current 0.28 A, Max. Voltage 240 V, Body Material PBT, Conduit Size 1/2 in, Standards CE, CSA, UL Listed This liquid level switch is designed to easily convert from high to low alarm, or from pump-up to pump-down operation by rotating 180 Degrees . It mounts to the outside of a tank or vessel using an NPT coupling, or to the inside using a bulkhead fitting (UNC/UNF). The dependable, encapsulated, magnetically coupled dry reed sw.