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MODEL: T1975

PROGRAM TIME SWITCH WITH “SKIPPER

”

FOR UP TO 48 TIMING OPERATIONS

ON 24 HOUR SCHEDULE

SINGLE POLE DOUBLE THROW

SWITCH RATING: 20 AMP. 125-480 VOLTS A.C. 1/2 HP-125V 1 HP-250V.

WIRING INSTRUCTIONS

This Time Switch can be wired to control two circuits as Single Pole

Double throw, or to control one circuit as Single Pole Single Throw. Either

normally open (NO) or normally closed (NC). To wire switch see wiring

diagram above.

TO PROGRAM TIME SWITCH, Depress tripper(s) into dial at desired

time(s) operation(s) is/are required.

• ON TIME: First tripper turns on the load for 16-20 minutes. Each

additional tripper will lengthen the on time by 15 minutes.

• OFF TIME: First tripper in raised position turns off the load for 10-14

minutes.Each additional space will lengthen the of time by 15 minutes.

SET TIME-OF-DAY: Turn dial in clockwise direction only and align

the exact time-of-day (the time now when switch is being put into

operation) to the “TIME” arrow on insulator.

CHECK SKIPPER WHEEL. If switch is to function seven days a

week pull all pins, in skipper wheel up to “OUT” position. Otherwise

depress pin(s) in skipper wheel for day(s) automatic operation is not

required.

• If, after the dial is set to the correct time of day and the skipper

tripper (silver color) has not yet passed the skipper wheel, turn

wheel counter clockwise so that the previous day is opposite the

“DAY” arrow.

• Iftheskippertripperhasalreadypassedtheskipperwheelsetthe

correct day opposite the “DAY” arrow.

CLOCK

MOTOR

SUPPLY

NORMALLY CLOSED CIRCUIT

NORMALLY OPEN CIRCUIT

FIG. 1 WIRING DIAGRAM

CLOCK

COM.

N.C.

LOAD

NO.

LOAD

OPERATING INSTRUCTIONS

TO CONTROL LOADS MANUALLY, Move manual lever (See Figure

1) up. This lever will close normally open circuit and open the normally

closed circuit. To return, to automatic control, move lever back to its

original position .

IN CASE OF POWER FAILURE, reset dial. See step (2) of programming

instructions.

INTERMATIC INCORPORATED

SPRING GROVE, ILLINOIS 60081-9698

158TS12894

CLOCK MOTOR: 125 VOLTS - 60 HZ.

CLOCK MOTOR VOLTAGE AND CYCLE MUST BE AS SPECIFIED. TO ORDER

REPLACEMENT, INDICATE PART NO. (WG--) ON MOTOR COVER.

LR3730

TIME

DIAL

INSULATOR

MANUAL

LEVER

CAP

NUTS

SKIPPER

WHEEL

MODEL: T1975 1

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Seite 1 - MODEL: T1975

MODEL: T1975PROGRAM TIME SWITCH WITH “SKIPPER@”FOR UP TO 48 TIMING OPERATIONS ON 24 HOUR SCHEDULESINGLE POLE DOUBLE THROWSWITCH RATING: 20 AMP. 125-4

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Intermatic T1975R Bedienerhandbuch

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