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Internet #100130053

Model #T101MD89

Store SKU #123709

Store SO SKU #1000331695

T100 Series 40 Amp 24-Hour Mechanical Mechanism with Single Pole Single Throw switching 120 VAC, Gray

  • Mechanism only
  • 40 Amps, 125 Volts
  • Direct 24-hour control of most loads
  • See More Details

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Product Overview

The T100 Series Mechanical Time Switch has proven it can stand the test of time. These dependable time switches can handle electrical loads up to 40 A per pole and allow for up to 12 ON/OFF operations per day. A manual override switch provides added convenience.
  • Direct 24-hour control of most loads
  • Up to 12 on/off operations each day with minimum on/off times of one hour
  • Manual override
  • One on and one off tripper included
  • Mechanism only
  • California residents

Info & Guides

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Specifications

Details

Accessory Type
Timer
Color Family
Gray
Commercial/Residential
Residential
Electrical Product Type
Dimmer/Lighting/Control Part/Accessory
Indoor/Outdoor
Indoor,Outdoor
Light Bulb Type Included
No Bulbs Included
Mounting Type
Wall Mounted
Returnable
90-Day
Use Type
Timers
Voltage
120 volt
Wired or Wireless
Wired

Warranty / Certifications

Manufacturer Warranty
1- year

Questions & Answers

18Questions29Answers

Can you replace this model with an intermatic T101?

Asked by Sandy December 18, 2020
5
Answers

Yes, it is an exact replacement.

will it work in an Intermatic T104R?

Asked by teri June 22, 2020
3
Answers

Yes. It fits.. but it stopped work on the first day of use... this is the second one in one year.

is the timer hard wired to 120 v or does it plug into a receptacle?

Asked by red April 13, 2020
4
Answers

This timer is hard wired.

Is this a replacement for a T1101M1? Not sure if there was an error or if that is the correct nu...

Asked by DA July 30, 2019
2
Answers

If all you have is (1) 115vac load, then it will work. Some units have (2) load connections and you can use just one. If you need (2) loads, then get a replacement for (2) load connections.

is this a replacement for a t101R

Asked by fred June 16, 2019
3
Answers

Yes, this is a replacement for the T101R. This is verified on the side of the box.

Will this replace a T103M timer in a T40003RT3 pool timer enclosure

Asked by Chris May 30, 2019
2
Answers

You can hear the timer motor running, but the gear coming off the timer motor is not turning..

I have a t102 needing replacement, will the t101 or t104 work instead? I can not find the t102 lo...

Asked by kevin January 6, 2019
2
Answers

I don't know, perhaps a sales associate at Home Depot would be able to look that up for you. They have additional information in the store that isn't in the packages of goods and components.

Is this a replacement for T101B single pole?

Asked by k1k June 5, 2018
3
Answers

Yes, I do believe it will work

Is this the correct replacement for the T100M timer motor ? I can't seem to find the T100. Maybe ...

Asked by RS December 18, 2017
2
Answers

yes

Is this the replacement for T101P?

Asked by Molly August 24, 2017
3
Answers

Yes, this is a replacement for the T101P. This is verified on the side of the box.

T100 Series 40 Amp 24-Hour Mechanical Mechanism with Single Pole Single Throw switching 120 VAC, Gray - page 2

Customer Reviews

  • 4.5
    out of 117 reviews
  • 82% recommend this product
Filter by:
Showing 1-10 of 117 reviews
I first tried two different sets of start trippers for the older clock mechanism. That did not h...
I first tried two different sets of start trippers for the older clock mechanism. That did not help. I then lightly lubricated the top of the clock mechanism, which did quiet the clock. The manual "on switch" worked to turn the lights on. However lightly lubricating the movable switch did not get the on switch to work with new or old trippers (for more than a few days). I then purchased and replaced the clock and mechanical mechanism. This fixed the time clock. The new manual on off switch works smoother on the new mechanism than the 30 year old mechanism it replaced. A couple of thoughts on replacing the mechanism. These should be considered as additions to and not replacements for the manufacturer's (Intermatics) cautions and instructions. * Manually turn to on and check that you lights controlled by the time clock turn on. * Then turn the circuit breaker that powers the clock timer to off and verify that the lights are off. This helps verify you turned off the correct circuit breaker before replacing the mechanism. If the lights are still on, you definitely turned off the wrong circuit breaker. Stop and locate the correct circuit breaker. * After you are sure your circuit breaker is off, remove the older insulator panel by pulling toward you to disconnect just below the word "on" and rotating 90 degrees so the longer peg above the A inside the circle comes off. * Optionally take an image of your wiring, in case you want to compare later. * I found it best to put small pieces of red electrician tape on each wire and mark them as A, 1 or 2, depending on which terminal they were connected too, before disconnecting them. This made them easy to identify when reconnecting them to the new mechanism. * Look at the pieces of metal in the timer case that will be holding the bottom of the new mechanism. You want the new mechanism to fit well into them before pushing the top of the mechanism behind the retaining catch. Once caught, you should be able to lightly pull the timer face toward you, without the lower part of the mechanism coming toward you. Otherwise remove and try inserting it into the case again, then push the top to catch it and pull the clock face again. The clock face is designed to pull out about 1/4 inch to assist in changing the time, however the rest of the mechanism should not pull forward when installed into the metal case. Here are two images of the "replaced mechanism" that may show where on the on off switch was wearing and where the tripper was bending. The previous mechanism was over 30 years old, so it appears the on/off mechanism was becoming stiffer to move.
by OldBear
1 person found this helpful
easy install, works great!...
easy install, works great!
by HomeDepotCustomer
Did not work... the clock portion of the device is...
Did not work... the clock portion of the device is not able to turn the key switch on/off and burnt (a second time in one year). I had to manually turn the key on/off even on the very first day.
by Renanwolf
It had apparently been a “returned item”. Upon inspection...
It had apparently been a “returned item”. Upon inspection I found the contact points were fused together making not useable I was extremely mad. I don’t live close to the store so I threw it in the trash instead of driving back to the store
by Dave
1 person found this helpful
Perfect swap out for my forty year old Intermatic timer,...
Perfect swap out for my forty year old Intermatic timer, no longer working properly. No need to buy/install another total enclosure, just change out the easy to remove "guts". Straightforward and quick, just more pricey than I would have thought.
by StanH1000
1 person found this helpful
by CARMEN
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Easy to replace an existing timer with a bad motor...
Easy to replace an existing timer with a bad motor
by Gregj
1 person found this helpful
Easy to install in existing Intermatic housing. Very quiet.
Easy to install in existing Intermatic housing. Very quiet.
by HomeDepotCustomer
1 person found this helpful
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Showing 1-10 of 117 reviews