Accessory List

Accessories and Tools
360
© Copyright 2006 TAC. All Rights Reserved. F-27382-1
Application
Selector switch sub-bases for use with electric room
thermostats to provide switching functions such as heating to
cooling, day to night control, etc.
Specifications
• Legend plates: Blank plate on left side is factory installed.
• Connections: Coded screw terminals.
• Mounting: On flush or surface with box. Directly to the wall for
24V applications.
• Switch positions:
- AT-602: Lower right DP4T.
- AT-603: Upper right: DPDT.
Lower right: DP4T.
• Use with: All single electric room thermostats except TC-114,
TA-121.
• Dimensions: 4-1/2 H x 5-1/8 W x 1-1/4 D in.
(114 x 130 x 32 mm).
• Color: Beige.
AT-602, AT-603
Single Unit Sub-Base
Total electrical rating of each sub-base switch:
The total load on both poles of a switch must not exceed the total
electrical rating.
Volts
(AC)
Inductive
Non-
Inductive
Amps
Pilot Duty
(VA)
Full Load
Amps
Locked
Rotor
Amps
24
5.8 34.8 6
125120
240 2.9 17.4 3
AT-
602
AT-603
Switch position on sub-bases.
AT-602
AT-607
AT-602
AT-607
AT-602
AT-607
AT-603
AT-608
AT-603
AT-608
B
C
D
C
D
AT-603
AT-608
B
AA A
Terminal and Switch Interconnections.
Terminal Identification Switch Functions
16
16
13
14
18
19
20
23
16
13
14
18
15
17
21
22
15
17
13
14
15
16
17
21
22
19
20
23
DPDT Switch
at 603 & 608
18
19
20
22
21
23
DP4T Switch
all at 600s
Symbols: Terminal
Switch Contact
Note: Switches in the position shown above make three separate
usable circuits: 13 to 14, 16 to 17, and 21 to 22.