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THERMOSTATS
LINE VOLTAGE
THERMOSTATS
1A10-651
with S29-21 subbase
1A10-651 LIGHT DUTY AND 1A16-51 HEAVY DUTY
LINE VOLTAGE THERMOSTATS
For Direct Control of Fan Coils, Fans, Motor Starters, Circulator Motors,
Contactors, Valves for Heating, Cooling and SPDT Applications
FEATURES
• Two dial stops for setting a maximum or minimum temperature. Minimum between
66 to 87°F. Maximum between 60 to 81°F.
• Thermostat mounts on 2” x 4 ” electrical box.
• Includes set point locking feature at 66°, 69°, 72°, 75°, 78° or 81°F
• Optional heating and cooling subbase S29-21 available.
• Beige color.
• Does not contain mercury.
SPECIFICATIONS
Dimensions without subbase, knob & case . . 41 / 2”H x 3 7/8”W x 1 3/4”D (Vertical)
Dimensions with subbase, knob & case . . . 51 / 8”H x 2 7/8”W x 2 3/4”D (Vertical)
Agency . . . . . . . . . . . . . . . . U.L. listed and C.S.A. certified
PARTS AND ACCESSORIES See end of thermostats section for additional parts and accessories
• Thermostats guards – see pages 34–35
Model
Number Range Differential
Switch
Action
A.C. Electrical Ratings
Pilot
Duty
Heat Cool
Voltage Full Load
Locked
Rotor
Resistive
(Non-Inductive) Full Load
Locked
Rotor
1A10-651
36 to 90°F
(2 to 32°C) 1.5˚F SPDT
120 8.0A 48.0A 8.0A 8.0A 48.0A 125 VA
125 VA 240 / 277 4.0A 24.0A 8.0A 4.0A 24.0A
1A16-51 36 to 90°F
(2 to 32°C) 1.5˚F SPDT 120 16.0A 96.0A 16.0A 8.0A 48.0A 125 VA
125 VA 240 / 277 8.0A 48.0A 16.0A 4.0A 24.0A
Model Number System Switching Thermostat Used Thermostat Style
S29-21 Cool – OFF – Heat 1A10-651, 1A16-51 Vertical
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