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Electronic 4-Circuit

365/7-Day Time Switch

Installation and Setup Instructions

With 100-Hour Backup

Federal Communications Commission (FCC) Notice for ET2000 Series Time Switches

Description

This document explains the setup and configuration of the Intermatic ET2745 
4-Circuit Electronic 365/7-Day Time Switch. The ET2745 time switch 
automatically switches loads according to the according to the entered weekly 
schedule. The time switch can support up to 48 fixed ON and 48 fixed OFF 
events (96 total). Each fixed event can be applied to any combination of circuits 
and days.
The time switch features an LCD and panel-mounted control buttons to set, 
review, and monitor the time switch functions, including setting date and time, 
schedule creation, enabling or disabling Daylight Saving Time (DST) and 
configuring DST switchover dates.
Follow these instructions to complete the installation and programming of the 
ET2745 time switch.

This device complies with part 15 of the FCC rules. Operation of this device is subject to the following two conditions: (1) This device 
may not cause harmful interference, and (2) This device must accept any interference, including interference that may cause 
undesired operation. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to 
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the 
equipment is operated in a commercial environment. This equipment generates, uses and radiates radio frequency energy and, if 
not installed and used in accordance with instructions, may cause harmful interference to radio communications. Operation of this 
equipment in a residential area is likely to cause harmful interference that requires the user to correct at his or her own expense.

MODELS ET2745C, ET2745CR, ET2745CP

Shown in indoor/outdoor 

lockable metal enclosure 

NOTICE

•  Do NOT touch circuit board components, contact can create a static discharge, which can damage these electronic components.

•  Disconnect power at the circuit breaker(s) or disconnect switch(es) before installing or servicing.
•  More than one circuit breaker or disconnect switch may be required to de-energize the equipment before servicing.
•  For plastic enclosures, bonding between conduit connections is not automatic and must be provided as part of the installation.
•  Installation and/or wiring must be in accordance with National and Local Electrical Code requirements.
•  Use #14-#8 AWG wires, rated at least 105°C - COPPER conductors ONLY.
•  If the power disconnect point is out of sight, lock it in the OFF position and tag it to prevent unexpected application power.
•  Make sure there is no wire insulation under the terminal plate on the time switch connector. Firmly tighten terminal screws.
•  For outdoor locations or wet locations (rain-tight), conduit hubs that comply with requirements of the UL514B (standard for fitting conduit and 

outlet boxes) are to be used.

•  Do not remove insulator that is covering terminals.
•  Do NOT exceed maximum current carrying capacity.
•  KEEP DOOR CLOSED AT ALL TIMES when not servicing.

Risk of Fire or Electric Shock

     WARNING

Summary of Contents for ET2745

Page 1: ...environment This equipment generates uses and radiates radio frequency energy and if not installed and used in accordance with instructions may cause harmful interference to radio communications Oper...

Page 2: ...the rear If a 3 4 inch knockout is needed remove the 1 2 inch knockout first then the 3 4 knockout 6 Place the enclosure in the desired location providing space for the enclosure door to swing open fu...

Page 3: ...ON FOR TWO CONTACTOR CONTROLS COM4 NO 4 COM3 NO 3 COM2 NO 2 COM1 NO 1 AC IN TIMER POWER CIRCUIT 4 CIRCUIT 3 CIRCUIT 2 CIRCUIT 1 L2 N L1 OUTPUT CONFIGURATION PUL CIRCUIT 1 AND 2 OUTPUT CONFIGURATION PU...

Page 4: ...te has not yet been entered the time switch will go to the Enter Date Mode Setting Date Follow this procedure below to set the date and time in the time switch NOTE If necessary hold or to scroll thro...

Page 5: ...o save Go to step 9 MON FRI Press DAY once and then press ENTER NEXT to save Go to step 9 SAT SUN Press DAY twice and then press ENTER NEXT to save Go to step 9 SET EACH DAY INDIVIDUALLY On the displa...

Page 6: ...day event to end 18 Press ON OFF buttons to remove each circuit not affected by this event All circuits are initially included with the event If the LOAD icon for the circuit is displayed then this ci...

Page 7: ...TXT where xx is the schedule number selected in the previous step 6 After the file is written REMOVE is shown on the display 7 Remove the USB memory stick and the time switch will advance to the next...

Page 8: ...o units caused by accident dropping or abuse in handling acts of God or any negligent use b units which have been subject to unauthorized repair opened taken apart or otherwise modified c units not us...

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