Electric Wall Ceiling Heater Thermostat 24 to 277V AC 1 1/8 in Overall Depth 2 1/8 in Overall Height 1 1/8 in Overall Width Compatible Manufacturer Model Number All Dayton(R) Unit Heaters Except 2YU58 2YU60 2YU61 2YU64 4TDH6 4TDH7 4TDH8 4TDH9 4TDJ1 4TDJ2 Number of Poles 1 24 to 277V AC Thermostat Control Voltage 25 A Contact Rating 22A @ 120 to 277V AC Housing Color Black Mounting Hardware Mounting Type Unit Mount Programming Capability Not Programmable SPST