The 3631NF/2 is a single-pole single-throw (SPST) Sealed Toggle Switch with solder lug/quick-connect terminals and ON-OFF functions. The 3600NF series switch has solid silver contact, phenolic resin case, nickel plated brass actuator/bushing. Sealing is obtained by O-ring between lever and bushing, half-length boot and nylon washer, elastomer gasket between cover and case, moulded-in terminal inserts and U60 sealing washer.