Intermatic ET1105C 24-Hour Time Switch (Same Operation Each Day)

Intermatic ET1105C 24-Hour Time Switch (Same Operation Each Day)

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Item# Intermatic ET1105C

These energy saving timers use n

Upgrading to an electronic time switch has never been easier than now with the new ET1100 Series. Features include; Automatic Daylight Saving Time adjustment, multi-volt operation from 120 to 277 VAC, and to-the-minute programming for accurate load control and reduced energy costs. Up to 28 set points or events (14 ON/14 OFF per channel) can be preset to automatically repeat on a daily basis. The program can be overridden at any time. Two industrial grade "AAA" alkaline batteries provide 3 years minimum program and timing protection.


  • Model #: ET1105C
  • Circuits: 1
  • Switch: SPST
  • Clock Voltage: 120/208/240/277
  • Amp Rating: 30
  • HP Rating: 1HP/ 2HP
  • Enclosure: NEMA1

Case Options: Standard: NEMA 1 Grey Painted Drawn Steel; 'R' Option: NEMA 3R Grey Paited Drawn Steel; 'PD82' Option: NEMA 3R Grey High-Impact UV Resistant Polycarbonate Plastic with Clear Cover

Note: The electronic mechanism snaps into the standard Intermatic time switch case, replacing mechanical mechanisms, if desired.

Knockouts: Combination 1/2"-3/4" nominal knockouts, one on back and each side of case and two on bottom.

Special Voltages and Cycles: ALL models 50 or 60 Hz.

Switch Rating: 30 Amp Inductive/Resistive, 24/ 120/ 240/ 277 VAC 60 Hz; 20 Amp Resistive, 28 VDC; 1 HP 120 AVC 60 Hz; 2 HP 240 VAC 60 Hz; 5 Amp Tungsten, 120/ 240/ VAC 60 Hz; 20 Amp Ballast, 120-277VAC 60 Hz. ET100C same ratings for 120 Volt loads only. ET1115 models normally closed contact ratings: 10A Resistive/General purpose, 12-277VAC; 10A Resistive/General purpose, 28 VDC; 3A Ballast, 120-277VAC; 1/4 HP, 120 VAC; 1/2 HP, 240 VAC; 30 LRA; 12 FLA; 275 VA pilot duty, 120-240 VAC

Pulse Feature: 2 Circuit models feature 2-Second pulse option for contactor and bell ringing applications

Auto DST: Automatic Adjustment for Daylight Saving Time (DST)

Carry-over: Field replaceable "AAA" batteries maintain program and accurate time keeping for 3 years minimum. Up front replacement does not require removal of mechanism.

Wiring Terminals: #18 to #10 AWG wire

Minimum ON/OFF Times: 1 minute

Maximum ON/OFF Times: 23 hours 59 minutes








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