Intermatic 7-Day Programmable ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$152.93
$111.30
Intermatic EI500C 7-Day Standard Programmable Timer, 125 VAC, 15A, Ivory

Intermatic 7-Day Programmable Timer Switch 125V 15A with Battery Backup and Random Mode

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Model: EI500C
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$152.93
$111.30
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Intermatic 7-Day Programmable Timer Switch 125V 15A with Battery Backup and Random Mode

Advanced 7-Day Programming with 14 ON/OFF Events for Versatile Lighting Control

The Intermatic 7-Day Programmable Timer Switch delivers professional lighting and fan control with advanced scheduling capabilities. This 125V 15A timer features built-in rechargeable battery backup, backlit LCD display, and compatibility with incandescent, fluorescent, CFL, and LED lighting. The random mode provides security by varying ON/OFF schedules for a lived-in appearance, while the single-pole circuit design ensures reliable operation for residential and commercial applications.

Professional Features & Benefits

  • 15A Current Rating: Handles substantial lighting and fan loads for comprehensive control in residential and commercial settings.
  • 7-Day Programming with 14 Events: Provides flexible scheduling options with multiple daily ON/OFF cycles for customized automation.
  • Built-in Battery Backup: Maintains programming and time settings during power outages for uninterrupted operation.
  • Universal Load Compatibility: Works with incandescent, fluorescent, CFL, and LED lighting for versatile installation options.
  • Random Mode Security Feature: Varies programmed schedules to simulate occupancy and enhance security.
  • Backlit LCD Display: Ensures easy programming and status monitoring in low-light conditions.
  • Single-Pole Circuit Design: Simplifies installation in standard switch applications with neutral connection requirement.

Technical Specifications

  • Applications: Air Movement & Ventilation;Indoor Lighting Control;Outdoor Lighting Control
  • Country Of Origin: China
  • Depth: 1.438 in
  • Input Voltage Rating Range S : 125 VAC, 60 Hz
  • Marketing Description: For installation on 15 A circuits, this timer provides 24-hour or 7-day programming of lights, fans
  • Product Color: Ivory
  • Product Height: 4.125 in
  • Product Length: NA NA
  • Product Weight: NA lbs
  • Product Width: 1.75 in
  • Warranty Period: 1-Year limited

Professional Applications

  • Indoor Lighting Control Systems
  • Outdoor Security and Landscape Lighting
  • Air Movement and Ventilation Control
  • Residential Automation Systems
  • Commercial Building Management
  • Energy Management Applications
  • Security and Occupancy Simulation

Why Choose Intermatic Quality?

Intermatic delivers reliable timer control solutions with professional-grade construction and comprehensive warranty coverage. The 1-year limited warranty and ivory finish provide long-term value and aesthetic compatibility with standard electrical installations, ensuring dependable performance in demanding applications.

Manufacturer Resources

Product Specs

Application:
Air Movement & Ventilation;Indoor Lighting Control;Outdoor Lighting Control
Country Of Origin:
China
Input Voltage Rating Range S :
125 VAC, 60 Hz
Marketing Description:
For installation on 15 A circuits, this timer provides 24-hour or 7-day programming of lights, fans
Product Color:
Ivory
Product Height:
4.125 in
Product Length:
NA NA
Product Weight:
NA lbs
Product Width:
1.75 in
Warranty Period:
1-Year limited
Product Depth:
1.438 in

Intermatic EI500C – Frequently Asked Questions

1) Does the Intermatic EI500C timer switch need a neutral wire?
Yes. The EI500C is a single-pole timer switch that requires a neutral connection at the box. If you're replacing an old mechanical switch in a box wired without a neutral, this one won't work and you'll need to pull a neutral or pick a no-neutral device.
2) Will the Intermatic EI500C run LED and CFL bulbs without flicker issues?
It's rated for incandescent, fluorescent, CFL, and LED loads, so you aren't limited to resistive incandescent lamps the way you are with some older mechanical timers. That covers a retrofit where a property has already been converted to LED.
3) What voltage and amperage is the EI500C timer switch rated for?
125 VAC at 60 Hz, on a 15 amp circuit. That's standard 120V residential and light commercial branch circuit wiring. It is not a 277V device, so it won't serve commercial fluorescent lighting circuits running at 277.
4) Does the Intermatic EI500C lose its program during a power outage?
No. It has a built-in rechargeable battery backup that holds the time and the programmed schedule through an outage, so nobody has to walk the building reprogramming switches after a storm. There's no coin cell to stock or replace.
5) Can I use the EI500C in a 3-way application with a second switch?
No. It's a single-pole device, so it controls the load from one location only. For a stairwell or a hallway switched from both ends, this is the wrong part.
6) How many on/off schedules can I program into the Intermatic EI500C?
Fourteen ON/OFF events across a 7-day week, and it can also be set for a simple repeating 24-hour schedule if every day is the same. That's enough to run a different pattern on weekends, which is what most office and common-area lighting needs.
7) Can this timer switch make a vacant unit look occupied?
That's what the random mode is for. It varies the programmed ON/OFF times so the lighting doesn't run on an obviously fixed schedule, which is the usual ask for vacant units, second homes, and storefront display lighting.
8) Can the Intermatic EI500C control a bathroom exhaust fan, not just lights?
Yes. Air movement and ventilation is one of its listed applications alongside indoor and outdoor lighting control, so it will run an exhaust or circulation fan on a schedule as long as the load stays within the 15 A circuit rating.
9) What color is the Intermatic EI500C, and will it match my existing devices?
Ivory. If the building is standardized on white or almond decora devices, the EI500C will stand out on the wall plate, so plan the aesthetic before ordering a quantity for a multi-unit rollout.
10) Can I program the Intermatic EI500C in a dark utility room or closet?
The LCD is backlit, so the display and the programming sequence stay readable in a mechanical room, basement, or unlit corridor where a plain LCD timer is guesswork.
How fast can I get the Intermatic EI500C 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 EI500C come with a warranty?
Absolutely. The Intermatic EI500C 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 EI500C?
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 EI500C 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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