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Thermostat, 1 Heat, Premier White

TS812A1007/U

Premier white 1 heat stage thermostat for heat only 750 mV applications

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

  • Product Info
  • Literature
  • Accessories & Replacement Parts

Overview

Basic Thermostats for low voltage control of single-stage heating, cooling or heating-cooling systems.

Features

  • Snap-acting bimetal switch uses no mercury and does not require leveling.
  • Thermostat is streamlined and economical.
  • Model available for 12 Vdc (T812B) and 750 mV (TS812).
  • Includes dealer logo pocket.

Product Specifications

Application
Heat Only - Millivolt
Dimensions (in.)
3 1/8 in. high x 3 1/8 in. wide x 7/8 in. deep
Dimensions (mm)
79 mm high x 79 mm wide x 23 mm deep
Item Type
Product
Mounting
Square
Electrical Ratings
750 mV
Stages
1 Heat
Tradeline Value
Tradeline
Supply Voltage
750 mV
Switch Positions (System)
Positive Off
Color
Premier White®
Sensor Element
Bimetal
Accuracy (F)
3 F
Accuracy (C)
1.5 C
Switching Action
SPST
Switch Type
Snap acting
Terminal Designations
R, W
Anticipator Setting
Heating-0.1A @ 0.75 Vdc
Setting Temperature Range (F)
45 F to 95 F
Setting Temperature Range (C)
7 C to 35 C
Heat Current
1.0A running, 2.5A inrush at 24 Vac

Technical Documents

Installation Materials-Installation Instructions for T812, TS812 Thermostats (English, French, Spanish)

Accessories

50005625-001/U

Premier white® cover plate assembly with 4 3/4 in. x 4 3/4 in. coverplate

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