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158TS10979
8/6/04
MODEL: T7402B
MINIMUM "ON" TIME 3-1/2 HR. UP TO 3-1/2 DAILY ON-OFF OPERATIONS
40 AMP. RESISTIVE EACH POLE 120V-480V AC.
40 AMP. INDUCTIVE, TUNGSTEN EACH POLE 120V, 208V, 240V, OR
277V AC. 1000 VA PILOT DUTY EACH POLE 120V - 277V AC.
24 FLA, 144 LRA (2 HP) - 120V AC.; 28 FLA, 168 LRA (5 HP) - 240V AC.
SINGLE PHASE
28 FLA, 168 LRA (7 1/2 HP) -208V AC., (10 HP) -240V AC. 3 PHASE
CLOCK MOTOR: 207-277 VOLTS - 60 HZ.
FOR REPLACEMENT MOTOR, ORDER WG1603
WIRING INSTRUCTIONS
This Time Switch can be wired to control one to four circuits simultaneously on a seven
day schedule. Clock motor voltage may be other than load voltage, but
specified. For terminal markings, internal wiring and contact arrangements refer to wiring dia-
gram above. Use solid or stranded COPPER wire with insulation to suit installation. See
table for gauge selection.
To make power connections remove 1/2 inch of insulation from wire ends. Insert bare ends
of wire under the pressure plate of terminals. Use 3/16 or larger screw driver to tighten
terminal
screws
ON ELECTRICITY.
MINIMUM
MAX.
COPPER
LOAD
WIRE SIZE
(AMP)
(AWG)
14
15
12
20
10
30
8
40
PROGRAMMING INSTRUCTIONS
1. TO
SET "ON" TIMES, place bright ON trippers against edge of CLOCK-DIAL at
day-of-week and time-of-day when "ON" operations are desired. Tighten tripper
screws securely.
2. TO SET "OFF" TIMES, place dark OFF trippers against edge of CLOCK-DIAL at
times when "OFF" operations are desired. Tighten tripper screws securely.
3. TO SKIP DAYS, omit trippers for the day(s) automatic operations is/are not required.
4. TO SET DIAL TO TIME-OF-DAY, turn dial CLOCKWISE and align the exact day-of-
week and time-of-day (AM or PM) on dial with the TIME POINTER. Some allowance
may be required to compensate for gear backlash.
CAUTION: DO NOT MOVE POINTER OR FORCE DIAL COUNTERCLOCKWISE.
OPERATING INSTRUCTIONS
• TO OPERATE SWITCH MANUALLY: Move MANUAL LEVER below CLOCK-DIAL
left or right as indicated by arrows. This will not affect next automatic operation.
• IN CASE OF POWER FAILURE OR TO ADVANCE/RETARD TIME: Reset time-of-
day, see step 4 of programming instructions.
DISCONNECT ELECTRICITY BEFORE ANY BEHIND-THE-INSULATOR WORK.
158TS10979
10:41 AM
Page 1
SEVEN-DAY DIAL TIME SWITCH
4 POLE SINGLE THROW
CONTACT RATINGS:
REPLACE
firmly.
MIN.
75°C INSULATION MAX. MOTOR
INSUL-
LOAD (HP)
ATION
SINGLE PHASE
TEMP(°C)
240 V.
120 V.
60
1/2
2
60
1
2 1/2
60
2
3
75
-
5
INTERMATIC INCORPORATED
SPRING GROVE, ILLINOIS 60081-9698
MOTOR
A
1 2
5 6
208-
277 V
60 HZ
SUPPLY
WIRING DIAGRAM
GROUND
SCREW
FRONT
INSULATOR
3 PHASE
208 V.
240 V.
3
3
4
5
7 1/2
5
7 1/2
10
CLOCK
3 4
7 8
B
TO
LOADS
must be as
BEFORE
TURNING
PRESSURE PLATE
TERMINAL SCREW
MAKE SURE WIRE
INSULATION CLEARS
PRESSURE PLATE
LR3730
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