T87K1007/U

Thermostat, Round™, Mercury Free, Manual

Per local restrictions, item is not available for sale in the state of Colorado as of January 1, 2026.

This product is available in the US only.

Overview

The Round® thermostats provide electronic control of 24Vac heating and cooling systems with the classic twist to set dial.

Hazmat Information: LITHIUM METAL BATTERIES in compliance with Section II of PI970
Application: Heat Only
Dimensions (in.): 3 11/16 in. diameter x 1 3/4 in. deep
Dimensions (mm): 94 mm diameter x 45 mm deep
Item Type: Product
Mounting: Round
Electrical Ratings: 20 to 30 Vac
Frequency: 50 Hz; 60 Hz
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
Color: Premier White®
Sensor Element: Thermistor
Accuracy (F): ± 2 F
Accuracy (C): ± 1 C
Switch Type: Relay
Terminal Designations: R, W, Y
Setting Temperature Range (F): 40 F to 90 F
Cycles per Hour: Adjustable 1, 3, 5, 9
Heat Current: 0.02A to 1.0A running