- Dimensions (in.) 3 11/16 in. diameter x 1 3/4 in. deep
- Application Heat Only
- Mounting Round
- Electrical Ratings 20 to 30 Vac
- 50/60Hz
- Stages 1 Heat
- Operating Humidity Range (% RH) 5 to 90% RH (non-condensing)
- Supply Voltage 20 to 30 Vac
- Power Method Battery assisted power stealing
- Sensor Element Thermistor
- Accuracy ± 2 F
- Switch Type Relay
- Setting Temperature Range 40 F to 90 F
- Cycles per Hour Adjustable 1, 3, 5, 9
- Heat Current 0.02A to 1.0A running
- Heat Only
Features
- Mercury Free
- Classic Styling
- Premier White
- The T87K heat only works with 2 or 3 wire heat-only systems
The Round thermostats provide electronic control of 24Vac heating and cooling systems with the classic twist to set dial.