Intermatic 158T10710 User Manual

Project4 7/27/04 3:45 PM Page 1

MODEL: T185

24 HOUR DIAL TIME SWITCH
WITH ADJUSTABLE TRIPPERS

LR3730

LISTED

885L

ONE NORMALLY OPEN -ONE NORMALLY CLOSED CONTACTS
MAY BE WIRED AS SINGLE POLE DOUBLE THROW.

40 AMP. RESISTIVE, INDUCTIVE, TUNGSTEN
OR 1000 VA, PILOT DUTY - 120-277 VOLT AC;
2 HP (24 FLA) - 120V. AC; 5 HP (28 FLA) - 240V AC.

CLOCK MOTOR VOLTAGE AND CYCLE MUST BE AS SPECIFIED. TO
ORDER REPLACEMENT, INDICATE PART NO. (WG--) ON MOTOR COVER.

LEVER

CLOCK MOTOR: 110-125V. 60 HZ.

WIRING
DIAGRAM

GRD.

120V

N

SUPPLY

LINE

TYPICAL WIRING: SINGLE POLE NORMALLY CLOSED
SEE WIRING INSTRUCTIONS BELOW FOR OTHER TYPES

TRIPPER
TIME

POINTER

FIGURE 1

CLOCK
DIAL

A

CLOCK

MOTOR

3

2

1

GROUND

4

TO
LOAD

WIRING INSTRUCTIONS: To wire switch follow diagram above.

To wire as SINGLE POLE NORMALLY OPEN, move motor lead from
terminal 3 to 1, and connect LINE to 1, LOAD to 2. To wire as SINGLE
POLE DOUBLE THROW, install jumper (the same gauge as LINE wire)
between terminals 2 and 3 and connect LINE to 2, LOADS to 1 and 4.
NOTE: Line 2 if present is uninterrupted. Use COPPER wire only. For
gauge selection and wire connection, see details below. Use 3//16 or larg­er screwdriver, tighten terminal screws firmly (25lb-in minimum).

REPLACE FRONT INSULATOR BEFORE TURNING ON ELECTRICITY.

MAX.

MINIMUM

LOAD

COPPER

(AMP)

WIRE SIZE

(AWG)

TEMP(°C)

14

15

12

20

10

30

8

40

PROGRAMMING INSTRUCTIONS

• TO SET TRIPPER(S): A. Loosen screw A. (Fig. 1 inset); move time

selector pointer to desired timing (scale is in minutes); tighten screw A.
Place TRIPPER(S) on CLOCK-DIAL at time(s) daily operation(s) is/are
to take place. Tighten screw B. firmly.

• TO SET TIME-OF-DAY: Pull CLOCK-DIAL outward. Turn in either

direction and align the exact time-of-day on the
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.
minutes immediately after an automatic operation.

• IN CASE OF POWER FAILURE, reset CLOCK-DIAL to proper time­of-day. See programming instructions.

158T10710

75°C INSULATION MAX. MOTOR

MIN.
INSUL­ATION

SINGLE PHASE

120 V. 240 V. 208 V.

60

1/2

60

1

60

2

75

-

2 1/2

2

3
5

LOAD (HP)

N/A

3 PHASE

240 V.

N/A

PRESSURE PLATE
TERMINAL SCREW
MAKE SURE WIRE

INSULATION CLEARS
PRESSURE PLATE

CLOCK-DIAL (the time

NOTE: The MANUAL LEVER is inoperative for 15

INTERMATIC INCORPORATED

SPRING GROVE, ILLINOIS 60081-9698