As a critical defrost sensor replacement

dust-tight switch protects internal components from ambient moisture and debris

The box lugs are designed for the primary high-current power leads (line and load)

making it a universal solution for building automation systems (BAS) and motor control applications

White-Rodgers 90-165 3Contactor As a critical defrost sensorThe White Rodgers 90 165 is a professional grade 3 pole definite purpose contactor engineered for demanding central air conditioning and heating systems. This 30 amp AC contactor features a 208 240V coil, providing reliable switching for inductive loads in residential and light commercial HVACR applications. Built with double break contacts, the 90 165 ensures positive make and break cycles, significantly reducing arcing and extending component life