Intermatic 40 Amp 125 Volt SPST Electromechanical Time Switch with Steel Enclosure for Outdoor Use-T101RD89 - The Home Depot
Message to Our Customers


Model # T101RD89

Internet # 100024879

Store SKU # 402265

40 Amp 125 Volt SPST Electromechanical Time Switch with Steel Enclosure for Outdoor Use

Intermatic 40 Amp 125 Volt SPST Electromechanical Time Switch with Steel Enclosure for Outdoor Use

This item has been discontinued.
The Home Depot no longer carries this specific product.

$64.00 / each


Model # T101RD89

Internet # 100024879

Store SKU # 402265

Intermatic is dedicated to providing energy conscious solutions and this time switch is designed for industrial, commercial and residential applications. It has the highest motor load rating in the industry. The original 'yellow dial' timer is just one product Intermatic offers for all your energy control needs.

  • Provides up to 12 on/off operations per day with minimum on/off times of 1 hour
  • 40 Amps per pole
  • General purpose use - Lighting, pool heaters, air conditioning, fans, pumps and more
  • Sturdy NEMA 3R drawn steel case for outdoor use protects time switch from rain, sleet, snow and ice
  • Manual override
  • 2 HP Rating
  • CSA certified in US and Canada

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Amperage (amps) 
Color Family 
Electrical Features 
Programmable,Rust Resistant 
Electrical Product Type 
Outdoor Lighting Features 
No additional features 
Timer Type 
Industrial Timer Switch 
Voltage (volts) 
Wattage (watts) 
Warranty / Certifications
Certifications and Listings 
CSA Certified 
Manufacturer Warranty 
1 year 


Rated 4.9 out of 5 by 9 reviewers.
Rated 5.0 out of 5.0 by Works like a charm After 10+ years, I replaced my old timer with this one, works great for the price April 21, 2015
Rated 5.0 out of 5.0 by Great product This time clock is build to last, I have installed hundreds of these over the last 25 years & they have been problem free. December 17, 2014
Rated 4.0 out of 5.0 by decent box and this is a replacement unit. old one lasted 10 years in a pool environment. you can add as many timer pins as you need for cycling January 15, 2013
Rated 5.0 out of 5.0 by Good product with good price Even though I had to hire someone to install it, I think is a great product. September 16, 2014
Rated 5.0 out of 5.0 by Heavy Duty timer Heavy duty timer. Took time to wire but directions for a home owner were good. I would recommend this product and after researching prices with shipping purchased with Home Depot. October 22, 2014
Rated 5.0 out of 5.0 by Best Mechanical Timer First one lasted 15 years. Only had to replace the timer assembly, not the enclosure. Very easy to replace - screw terminals for the wiring and a clip to hold the assembly in place. Took maybe 15 minutes. Also, +1 to Inermatic customer support. I spoke with them to verify what was required before making the purchase. They are extremely courteous and helpful. Quickly verified that I only needed to replace the timer and that it would still fit/work/etc in the old enclosure. June 5, 2014
Rated 5.0 out of 5.0 by owner, AAE ELECTRIC One of the last great American products- low cost, easy set up, super durable ( I've seen these units last 30-40 years or more) extremely reliable. September 5, 2013
Rated 5.0 out of 5.0 by Very Heavy Duty Mounted this in my shed for an outside water fountain. Can set several on/off times and can manually turn off the current on mode. June 24, 2014
  • 2015-05-21T12:09:28.304-05:00
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