Remote Bulb Temperature Control, 24-277 Vac, SPDT, Automatic Reset (0 to 150F)

The temperature sensing elements are liquid filled, providing uniform differential throughout the selected adjustment range. Remote bulb elements are regularly supplied with a 6 foot. (1.8 m) capillary. Requests for other construction variations should be sent to Customer Service. The range adjustment changes the cut-in and cutout points alike. The differential is nonadjustable.

The A19AUC and A19BUC thermostats are designed for use in locations where flammable and explosive mixtures of vapors and gases with air or combustible dust in air are present. Listed at UL for “Hazardous Locations, Class I, Group D (NEMA 7) and Class II, Groups E, F and G (NEMA 9)” as defined in the National Electrical Code. The SPDT contact unit provides open high or close high action for either heating or cooling applications. The thermostats are available to cover sensed temperatures from -30 to 475°F (-34 to 246°C). Closed tank fittings and bulb wells are available for immersion applications.

All Series A19 thermostats are designed for use only as operating controls. Where an operating control failure would result in personal injury and/or loss of property, it is the responsibility of the installer to add devices (safety, limit controls) or systems (alarm, supervisory systems) that protect against, or warn of, control failure.

Features

• Dependable and precise snap-acting contacts enclosed in a dust protected case and the liquid filled sensing element are field proven.
• Unaffected by barometric pressure and cross ambient temperature problems for “repeat” accuracy.
• SPDT contacts for use on either heating or cooling applications.
• UL Listed, CSA Certified for “Hazardous Locations.”