Intermatic ET1105C 24-Hour 1 Circuit Electronic Control, 120-277 VAC

IntermaticSKU: ET1105C

Sale price $193.70
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Specifications | Instructions

Intermatic ET1105C 24-Hour 1 Circuit Electronic Control, 120-277 VAC, SPST, Indoor Metal Enclosure

This series offers an easy way to upgrade from a basic mechanical time switch to an electronic time switch. These timers will allow for up-to-the-minute programming, battery backup for power loss, up to 28 events total, and automatic daylight saving time corrections without the need of user interaction. They come in standard 24-hour, 7-day and 7-day astronomic versions.


  • Selector switch to determine input voltage between 120-277 VAC
  • Up to 28 events total
  • To-the-minute accuracy
  • Temporary override or permanent manual override
  • Automatic Daylight Saving Time adjustment
  • Astronomic models enable dusk-to-dawn scheduling


    • Indoor Lighting Control
    • Machinery & Pump Controls
    • Timing/Scheduling ON/OFF


    Backup Type Battery Input Voltage Range(s) 120-277 VAC, 50/60 Hz
    Maximum ON/OFF Operations 14 Number Of Circuits 1
    Operation Mode 24 hour Switch Type SPST
    Enclosure Type Indoor type 1 metal Minimum ON/OFF Times 1 min
    Electronic Series ET1100 Series Maximum ON/OFF Times Indefinite
    Maximum Power Consumption (W) 6 W ON/OFF Operations 14
    Warranty Period 1-Year limited Wiring Option Terminals
    Battery Service Type Field Serviceable Battery Type AAA
    Category Electronic Controls Web Daylight Savings Adjustment Automatic
    Electronic Ballast Load Ratings Ranges 1 A, 120-277 VAC Inductive Load Ratings NO Ranges 30 A, 120/240 VAC
    Knockout Dimensions Back (1) combination 1/2" - 3/4" Knockout Dimensions Bottom (2) combination 1/2" - 3/4"
    Magnetic Ballast (NO) Range(s) 20 A, 120-277 VAC Motor Load Ratings NO Ranges 1 HP, 120 VAC; 2 HP, 240 VAC
    Rating General Purpose Resistive (NO) Range(s) 20 A, 28 VDC; 30 A, 120/240 VAC
    Timer Type Digital Tungsten (NO) Range(s) 5 A, 120/240 VAC
    Voltage Selection Type Selector Switch Wire Size Max #8 AWG
    Wire Size Min #14 AWG Operating Temperature Max (°C) 40
    Operating Temperature Max (°F) 104 Operating Temperature Min (°C) -40
    Operating Temperature Min (°F) -40 Product Depth (in) 3.4375
    Product Depth (mm) 87.3 Product Height (in) 7.875
    Product Height (mm) 200 Product Width (in) 5.125
    Product Width (mm) 130.2 Unit Carton Height (in) 3.131
    Unit Carton Length (in) 8.001 Unit Carton Weight (lb) 2.844
    Unit Carton Width (in) 5.251

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