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3 63-2051—4
T451A, T651A, T694A,B,D,F
SPECIFICATIONS
ELECTRICAL RATINGS (A):
Voltage (Vac)
120 208/240/277
Full Load 8 4
a
Locked Rotor 48 24
a
Wider temperature differential ranges can occur when
used in cooling applications with current draws that are
more than four amps. If a wider differential range is
unacceptable, use a T6051 Heavy Duty Line Voltage
Thermostat for a smaller differential range.
Pilot Duty: 125 VA.
7.2A Resistive: heating contacts only.
TEMPERATURE SETTING RANGE: 35° F to 95° F [2° C
to 35° C] (with range stops removed).
STORAGE TEMPERATURE: -40° F to 150° F [-40° C to
66° C].
FIXED DIFFERENTIAL: 2° F [1° C].
SWITCHING ACTION:
T451: Spst. Contacts make on temperature fall.
T651: Spdt. Heating contacts break and cooling contacts
make on temperature rise.
T694: Spdt. Heating contacts break and cooling contacts
make on temperature rise.
FIELD WIRING CONNECTIONS: No. 10 screw terminals
on T451A/T651A; color-coded leads on T694 models.
DIMENSIONS: See Figs. 1 and 2.
FINISH: Brushed champagne gold and dark pewter face-
plate; beige and brown case.
UNDERWRITERS LABORATORIES INC.: Listed.
ACCESSORIES:
Q473A2006 Switching Subbase: Use with T651A for
HEAT-OFF-COOL manual system switching.
Q473B2005 Switching Subbase: Use with T451A/
T652A for AUTO/OFF switching in heating only or
cooling only applications.
220124A Faceplate vertical, Fahrenheit scale, with
thermometer.
a
220124B Faceplate vertical, Celsius scale, with ther-
mometer.
220124C Faceplate, horizontal, Fahrenheit scale, with
thermometer.
a
220124D Faceplate, horizontal, Celsius scale, with ther-
mometer.
220125A Faceplate, horizontal, Fahrenheit scale, with-
out thermometer.
220125B Faceplate, vertical, Fahrenheit scale, without
thermometer.
220125C Faceplate, horizontal, Celsius scale, without
thermometer.
220125D Faceplate, vertical, Celsius scale, without ther-
mometer.
220126A Faceplate, horizontal, blank (concealed setpoint,
without thermometer).
a
220126B Faceplate, vertical, blank (concealed setpoint,
without thermometer).
a
220213 Wallplate, covers old T451A/T651A wall marks
when installing new T451A/T651A.
a
199242 Wallplate, covers old T694 wall marks when
installing new T694.
a
Supplied with SUPER TRADELINE model T651A.
Fig. 1—T451A, T651A mounting dimensions in in. [mm].
4
17
32
[114]
2
13
16
[70]
40
50
60
70
80
90
40 50 60 70 80 90
COOL HEAT COM
1
1
8
[22]
1
13
16
[
48
]
3
9
32
[83]
1
3
4
[45]
15
16
[24]
17
32
[14]
1
1
8
[37]
1
15
32
[35]
9
16
[14]
F
M6130