Intermatic 7-Day Heavy-Duty Pr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$181.59
$136.73
Intermatic EI600C 7-Day Heavy-Duty Programmable Timer, 120-277 VAC, 20A, Ivory

Intermatic 7-Day Heavy-Duty Programmable Timer 120-277V 20A with Astronomical Clock

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Model: EI600C
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$181.59
$136.73
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Intermatic 7-Day Heavy-Duty Programmable Timer 120-277V 20A with Astronomical Clock

Advanced scheduling control with no neutral wire requirement for easy installation

The Intermatic 7-Day Heavy-Duty Programmable Timer delivers professional-grade scheduling control for indoor and outdoor lighting, air movement, and ventilation applications. Operating on 120-277 VAC with 20A capacity, this versatile timer features no neutral wire connection for simplified retrofitting and faster installation across residential and commercial environments.

Professional Features & Benefits

  • 20A Heavy-Duty Rating: Handles demanding loads including incandescent, fluorescent, CFL, and LED lighting systems with reliable switching performance.
  • 120-277 VAC Wide Voltage Range: Compatible with both residential and commercial electrical systems for versatile installation flexibility.
  • No Neutral Wire Required: Enables quick retrofitting in existing installations without rewiring, reducing installation time and complexity.
  • 40 ON/OFF Events: Provides extensive programming capability with up to 40 scheduled events across a 7-day period for precise control.
  • Astronomical Clock Function: Automatically determines dawn and dusk times for optimal lighting control based on geographic location and seasonal changes.
  • Automatic DST Adjustment: Maintains accurate scheduling year-round with built-in Daylight Saving Time transitions.
  • Random Mode Operation: Varies ON/OFF schedules to simulate occupancy and provide enhanced security through "lived-in" appearance.

Technical Specifications

  • Applications: Air Movement & Ventilation;Indoor Lighting Control;Outdoor Lighting Control
  • Country Of Origin: Thailand
  • Depth: 1.813 in
  • Input Voltage Rating Range S : 120-277 VAC, 50/60 Hz
  • Marketing Description: Highly versatile Heavy-Duty Timers are ideal for any application that requires a simple or complex
  • Product Color: Ivory
  • Product Height: 4.125 in
  • Product Length: NA NA
  • Product Weight: NA lbs
  • Product Width: 1.75 in
  • Warranty Period: 5-Year limited

Professional Applications

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

Why Choose Intermatic Quality?

Backed by a comprehensive 5-year limited warranty and featuring a replaceable CR2 lithium battery with up to three years of operation, this Intermatic timer delivers dependable performance for demanding scheduling applications. The isolated switch design ensures compatibility with any load type, including both AC and DC loads, while single or 3-way switch compatibility provides installation flexibility across diverse electrical configurations.

Manufacturer Resources

Product Specs

Application:
Air Movement & Ventilation;Indoor Lighting Control;Outdoor Lighting Control
Country Of Origin:
Thailand
Input Voltage Rating Range S :
120-277 VAC, 50/60 Hz
Marketing Description:
Highly versatile Heavy-Duty Timers are ideal for any application that requires a simple or complex
Product Color:
Ivory
Product Height:
4.125 in
Product Length:
NA NA
Product Weight:
NA lbs
Product Width:
1.75 in
Warranty Period:
5-Year limited
Product Depth:
1.813 in

Intermatic EI600C – Frequently Asked Questions

1) Can the Intermatic EI600C timer be installed in a switch box with no neutral wire?
Yes. The EI600C heavy-duty programmable timer does not require a neutral connection, so it drops into older switch boxes that only have line and load without rewiring. That is the main reason it gets specified on retrofits in existing buildings.
2) Will the EI600C timer run on a 277V lighting circuit in a commercial building?
It will. The EI600C is rated 120-277 VAC, 50/60 Hz, so the same part covers 120V residential circuits and 277V commercial lighting branch circuits. Switching capacity is 20A.
3) Will this Intermatic timer switch LED and fluorescent fixtures, or is it incandescent only?
LED, CFL, fluorescent and incandescent are all covered. The EI600C uses an isolated switch design, which makes it load-type independent and suitable for AC or DC loads up to its 20A rating. That matters with LED drivers, where a neutral-less timer relying on leakage through the load can misbehave.
4) How many schedules can I program on the Intermatic EI600C, and does it handle sunrise and sunset?
Up to 40 ON/OFF events across a 7-day week, and it has an astronomical clock that calculates dawn and dusk for your location and shifts them through the seasons. Daylight Saving Time adjusts automatically, so exterior lighting does not drift twice a year.
5) Can the EI600C be used in a 3-way switching arrangement?
Yes, the timer works in single-pole or 3-way configurations, so you can keep manual control from a second location on a corridor or stairwell circuit.
6) What happens to the EI600C program during a power outage?
A replaceable CR2 lithium battery keeps the clock and schedule, rated for up to three years of operation. Because it is replaceable, you are not scrapping the timer when it finally goes.
7) Is the EI600C suitable for controlling exhaust fans and ventilation, not just lighting?
Yes. Rated applications include air movement and ventilation alongside indoor and outdoor lighting control, and the 20A isolated switch handles motor and lighting loads alike. Common uses are bath and garage exhaust, parking lot lighting, and sign circuits.
8) Is there a vacancy-simulation mode on this timer for unoccupied units?
There is. Random mode varies the ON and OFF times around the programmed schedule so a vacant apartment or storefront reads as occupied. Property managers use it on turnover units and seasonal properties.
9) What color is the Intermatic EI600C and what are its dimensions for a multi-gang plate?
Ivory, measuring 4.125 in by 1.75 in by 1.813 in. Check the depth figure against your box fill before ganging it beside other devices.
How fast can I get the Intermatic EI600C 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 EI600C come with a warranty?
Absolutely. The Intermatic EI600C 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 EI600C?
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 EI600C 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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