Owner's Manual
MODEL: T101B
24 HR. DIAL TIME SWITCH (SPST) 
WITH INDEPENDENTLY WIRED CLOCK MOTOR
40 AMP. RESISTIVE, 120-480VOLT AC; 
40 AMP, INDUCTIVE, OR TUNGSTEN  OR 
1000 VA PILOT DUTY 120-277 VOLT AC;
2 HP (24 FLA)-120V AC; 5 HP (28 FLA)-240V AC.
1 VA MINIMUM AT 24  VOLT AC
WIRING INSTRUCTIONS: To wire switch follow diagram above. 
Use solid or stranded COPPER only wire with insulation to suit 
installation. See gauge selection table for normal service applica-
tions. 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  screwdriver  to  tighten  terminal 
screws firmly. (25 lb-in minimum).
REPLACE INSULATOR BEFORE TURNING ON ELECTRICITY. 
PROGRAMMING INSTRUCTIONS
1.  TO SET “ON” AND “OFF” TIMES: Hold trippers against edge 
  of CLOCK-DIAL, pointing to time (AM or PM) when ON and
  OFF operations are desired, tighten tripper screws firmly. For
  additional tripper pairs on CLOCK-DIAL order 156T1978A.
2.  TO  SET  TIME-OF-DAY: Pull CLOCK-DIAL outward. Turn  in
  either direction and align the exact time-of-day on the CLOCK-
  DIAL (the time now, when switch is being put into operation) to
  the pointer. DO NOT MOVE POINTER.
OPERATING INSTRUCTIONS
• TO OPERATE SWITCH MANUALLY: Move MANUAL LEVER 
  below CLOCK-DIAL left or right as indicated by arrows. This 
  will not effect next operation.
• IN CASE OF POWER FAILURE,  reset  CLOCK-DIAL  to
  proper  time-of-day. See programming instructions.
INTERMATIC INCORPORATED
SPRING GROVE, ILLINOIS 60081-9698
158TS10942
TIME
POINTER
TIME
DIAL
OFF
TRIPPER
MANUAL
LEVER
ON
TRIPPER
PRESSURE PLATE
TERMINAL SCREW
MAKE SURE WIRE
INSULATION CLEARS
PRESSURE PLATE
MINIMUM
COPPER
WIRE SIZE
(AWG)
MAX.
LOAD
(AMP)
MIN.
INSUL-
ATION
TEMP(°C)
75°C INSULATION MAX. MOTOR
LOAD (HP)
SINGLE PHASE
3 PHASE
120 V. 240 V. 208 V.
240 V.
14
12
10
8
15
20
30
40
60
60
60
75
1/2
1
2
-
2
2 1/2
3
5
N/A
N/A
CLOCK MOTOR: 110-125 VOLTS - 60 HZ.
CLOCK  MOTOR  VOLTAGE  AND  CYCLE  MUST  BE  AS  SPECIFIED.  TO 
ORDER REPLACEMENT, INDICATE ART NO. (WG--) ON MOTOR COVER.
CLOCK
MOTOR
EQUIPMENT
GROUND
A 1
3
4
120V
CLOCK
MOTOR
SUPPLY
TO
LOAD
GRD
WIRING DIAGRAM
SUPPLY
LR3730

