Dwyer Instruments TSW-250 Temperature Switch 318518-761 this is a "Coil Only"

this is a "Coil Only" replacement item

using this genuine 17F52 assembly ensures the unit maintains its rated AFUE efficiency by facilitating proper flue gas cooling and moisture extraction

This series 880 cast iron model features a 3/4" NPT connection and is designed to operate efficiently up to a 150 PSI maximum working pressure

Common Questions: Is this an OEM or aftermarket part

Veteran technicians recognize this as a vital safeguard against heat exchanger rollout or blower motor failure

Dwyer Instruments TSW-250 Temperature Switch 318518-761 this is a "Coil Only"The Dwyer Instruments TSW 250 is a rugged, digital temperature switch designed for heavy duty HVACR and industrial processes. This dual stage temperature control features a weatherproof NEMA 4X enclosure, making it the standard for rooftop units and washdown environments. Operating on a universal 90 to 255 Vac power supply, the TSW 250 eliminates the need for separate models for different voltage requirements. The unit utilizes a precise PTC