158TS10979 8/6/04 10:41 AM Page 1
MODEL: T7402B
SEVEN-DAY DIAL TIME SWITCH
4 POLE SINGLE THROW
MINIMUM “ON” TIME 3-1/2 HR. UP TO 3-1/2 DAILY ON-OFF OPERATIONS
AMP. RESISTIVE EACH POLE 120V- 480V AC.
40
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
CONTACT RATINGS:
A
5
208277 V
60 HZ
SUPPLY
6
CLOCK
MOTOR
1
B
2
3
7
4
8
TO
LOADS
LR3730
GROUND
SCREW
WIRING DIAGRAM
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 must be as
specified. For terminal markings, internal wiring and contact arrangements refer to wiring diagram 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 firmly.
REPLACE FRONT INSULATOR BEFORE TURNING
ON ELECTRICITY.
MINIMUM
COPPER
WIRE SIZE
(AWG)
14
12
10
8
MAX.
LOAD
(AMP)
15
20
30
40
MIN.
INSUL-
ATION
TEMP(°C)
60
60
60
75
75°C INSULATION MAX. MOTOR
240 V.
2
2 1/2
3
5
LOAD (HP)
SINGLE PHASE
120 V.
1/2
1
2
-
208 V
3
4
5
7 1/2
3 PHASE
.
240 V.
3
5
7 1/2
10
PRESSURE PLA
TERMINAL SCREW
MAKE SURE WIRE
INSULATION CLEARS
PRESSURE PLA
TE
TE
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.
O SET “OFF” TIMES,
2.
T
times when
3.
TO SKIP DAYS, omit trippers for the day(s) automatic operations is/are not required.
O SET DIAL
4.
T
“OFF” operations are desired. Tighten tripper screws securely.
O TIME-OF-DA
T
week and time-of-day (AM or PM) on dial with the
place dark OFF trippers against edge of CLOCK-DIAL at
,
Y
turn dial CLOCKWISE and align the exact day-of-
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
left or right as indicated by arrows.
: Move MANUAL LEVER below CLOCK-DIAL
This will not af
fect next automatic operation.
• IN CASE OF POWER FAILURE OR TO ADVANCE/RETARD TIME: Reset time-of-
day, see step 4 of programming instructions.
OR WORK.
DISCONNECT ELECTRICITY
INTERMA
SPRING GROVE, ILLINOIS 60081-9698
158TS10979
BEHIND-THE-INSULA
BEFORE
ANY
TIC INCORPORA
TED
T
Loading...