Die cast aluminum with polyamid epoxy coating, NEMA 4X; watertight, dust tight and corrosion resistant.
Connection
Screw terminals on switch through 1/2-NPT hub
Switch
SPDT UL listed with internal calibrated reference dial and tamperproof adjustment.
Rating
22 amps at 480 VAC.
Range
15° - 140°F
Sensor
304 SS sensor stem.
Approval
UL listed/CSA certified.
Accuracy
±1% of adjustment range.
The 1660-18911 thermostat is a watertight, dust tight and corrosion resistant temperature control in a lightweight die cast enclosure with an internal calibrated reference dial and tamperproof adjustment for outdoor or indoor locations. The liquid-filled thermal system, with its stainless steel sensor stem, provides a very dependable and accurate control system.
For heater control, low alarm (close on falling temperature) use COM and NC. For high alarm (close on rising temperature) use COM and NO.
