Intermatic 24-Hour Electronic ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$487.91
$474.03
Intermatic ET1105C 24-Hour 1 Circuit Electronic Control, 120-277 VAC, SPST, Indoor Metal Enclosure

Intermatic 24-Hour Electronic Timer Control 120-277V SPST Indoor Metal Enclosure with Daylight Saving Time

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Model: ET1105C
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$487.91
$474.03
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Intermatic 24-Hour Electronic Timer Control 120-277V SPST Indoor Metal Enclosure with Daylight Saving Time

Professional Electronic Timing Control for Versatile Applications

The Intermatic 24-Hour Electronic Timer Control delivers reliable automated scheduling with 120-277V compatibility and SPST switching capability. Housed in a durable indoor metal enclosure, this electronic control provides to-the-minute accuracy with automatic Daylight Saving Time adjustment for consistent performance year-round.

Professional Features & Benefits

  • 120-277V Input Range: Versatile voltage compatibility accommodates diverse electrical systems and applications with single unit flexibility.
  • Up to 28 Events Total: Extensive programming capacity enables complex scheduling requirements for multiple daily operations.
  • Automatic Daylight Saving Time: Eliminates manual time adjustments twice yearly, ensuring consistent scheduling without intervention.
  • To-the-Minute Accuracy: Precise timing control delivers exact scheduling performance for critical applications requiring reliable operation.
  • Indoor Metal Enclosure: Durable gray metal housing provides protection and professional appearance for interior installations.
  • Manual Override Options: Temporary or permanent manual override capability offers operational flexibility when needed.
  • SPST Switching: Single pole, single throw configuration provides straightforward control for lighting and equipment applications.

Technical Specifications

  • Applications: Indoor Lighting Control;Machinery & Pump Controls;Timing/Scheduling ON/OFF
  • Country Of Origin: China
  • Depth: 3.437 in
  • Input Voltage Rating Range S : 120-277 VAC, 50/60 Hz
  • Marketing Description: This series offers an easy way to upgrade from a basic mechanical time switch to an electronic time
  • Product Color: Gray
  • Product Height: 7.875 in
  • Product Length: NA NA
  • Product Weight: NA lbs
  • Product Width: 5.125 in
  • Warranty Period: 1-Year limited

Professional Applications

  • Indoor Lighting Control Systems
  • Machinery and Pump Control Operations
  • Commercial Facility Scheduling
  • Industrial Equipment Timing
  • Professional Office Automation
  • Retail Establishment Controls
  • Multi-Unit Property Management

Why Choose Intermatic Quality?

Intermatic electronic timer controls provide dependable performance with durable indoor metal enclosure construction and comprehensive 1-year limited warranty coverage. The professional gray finish and precise electronic timing deliver reliable automation for demanding commercial and industrial applications.

Manufacturer Resources

Product Specs

Application:
Indoor Lighting Control;Machinery & Pump Controls;Timing/Scheduling ON/OFF
Country Of Origin:
China
Input Voltage Rating Range S :
120-277 VAC, 50/60 Hz
Marketing Description:
This series offers an easy way to upgrade from a basic mechanical time switch to an electronic time
Product Color:
Grey
Product Height:
7.875 in
Product Length:
NA NA
Product Weight:
NA lbs
Product Width:
5.125 in
Warranty Period:
1-Year limited
Product Depth:
3.437 in

Intermatic ET1105C – Frequently Asked Questions

1) Will the Intermatic ET1105C timer work on a 277V lighting circuit?
Yes. The ET1105C electronic time switch is rated 120-277 VAC, 50/60 Hz, so the same unit covers 120V, 208V, 240V and 277V without ordering a voltage-specific model. That range is why it suits commercial lighting, where 277V branch circuits are common, as well as 120V machinery and pump control.
2) Can I mount an Intermatic ET1105C outside or in a wet location?
No. The ET1105C is supplied in an indoor metal enclosure only. For parking lot lights, signage or any exterior or washdown location, use an outdoor-rated raintight time switch enclosure instead, or install the ET1105C inside an electrical room and run the switched conductors out to the load.
3) Is the Intermatic ET1105C a single circuit or multi circuit timer?
One circuit. The ET1105C is SPST, a single pole single throw switch controlling one load. If you need two loads on independent schedules, or a load that has to be switched at both legs, this is the wrong configuration and you want a two circuit or DPST electronic control.
4) Is the ET1105B or ET1105C a direct swap for an old mechanical time clock?
The ET1105C is built as the upgrade path from a basic mechanical time switch to an electronic one. It arrives in its own indoor metal enclosure, so it replaces the whole existing clock and can, not just the movement. Confirm your feed falls in the 120-277 VAC range and that the load is switched on a single pole, then wire line and load the same way the mechanical clock was landed.
5) How many on/off schedules can I program into the ET1105C electronic timer?
Up to 28 events total. Counting an ON and an OFF as two events, that is 14 on/off cycles to distribute across the week, which is enough for a different schedule each day plus a few extra switching times. Programming resolution is to the minute.
6) Do I have to reset an Intermatic ET1105C timer twice a year for daylight saving time?
No. The ET1105C adjusts for Daylight Saving Time automatically, so schedules hold through both changeovers without a site visit. For a property manager running the same control at a dozen buildings, that removes two rounds of truck rolls a year compared with a mechanical time switch.
7) Can maintenance staff turn the lights on manually without breaking the ET1105C timer schedule?
Yes. The ET1105C offers manual override, either temporary or permanent. Temporary override flips the load and hands control back at the next scheduled event, so an after-hours request does not require reprogramming. Permanent override holds the load in the selected state until someone releases it.
8) Will an Intermatic ET1105C run a pump or motor load, or is it only for lighting?
Both. Intermatic lists the ET1105C for indoor lighting control, machinery and pump controls, and general ON/OFF scheduling. Because it is SPST, it switches one leg of the load, so a motor needing both legs opened, or one drawing more than the contact rating on the unit's nameplate, should be switched through a contactor with the ET1105C driving the coil.
9) What exact Intermatic part number do I order for the 24 hour 120-277V SPST electronic control?
ET1105C is the part number, an Intermatic 24-hour one circuit electronic control, 120-277 VAC, SPST, in an indoor metal enclosure. It ships as a single configuration with no finish or voltage suffix to pick, so the base number is the complete order.
How fast can I get the Intermatic ET1105C delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Intermatic ET1105C come with a warranty?
Absolutely. The Intermatic ET1105C is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Intermatic ET1105C?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Intermatic ET1105C from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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