Intermatic 158TS10978 User Manual
158TS10978 8/6/04 10:37 AM Page 1
MODEL: T7401B
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: 125 VOLTS - 60 HZ.
FOR REPLACEMENT MOTOR, ORDER WG1600
CONTACT RATINGS:
A
5
6
120 V
60 HZ
SUPPLY
CLOCK
MOTOR
2
1
B
4
3
8
7
TO
LOADS
LR3730
GROUND
WIRING DIAGRAM
SCREW
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
only 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(
60
60
60
75
°
C)
SINGLE PHASE
.
120 V
1/2
1
2
-
75°C INSULATION MAX. MOTOR
LOAD (HP)
240 V.
2 1/2
3 PHASE
208 V.
3
2
4
5
3
7 1/2
5
240 V
3
5
7 1/2
10
PRESSURE PLATE
.
TERMINAL SCREW
MAKE SURE WIRE
INSULATION CLEARS
PRESSURE PLA
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.
2.
TO SET “OFF” TIMES, place dark OFF trippers against edge of CLOCK-DIAL at
ighten tripper screws securely
times when
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-
“OFF” operations are desired.
week and time-of-day (AM or PM) on dial with the
T
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 F
•
AILURE OR TO ADVANCE/RETARD TIME:
Reset time-of-
day, see step 4 of programming instructions.
DISCONNECT ELECTRICITY BEFORE ANY BEHIND-THE-INSULATOR WORK.
TED
158TS10978
INTERMA
SPRING GROVE, ILLINOIS 60081-9698
TIC INCORPORA
Loading...