Model # T103D89

Internet #100089939

Store SKU #983053

Intermatic T100 Series 40 Amp 125-Volt DPST 24 Hour Mechanical Time Switch with Indoor Enclosure
0078275000049

Intermatic

T100 Series 40 Amp 125-Volt DPST 24 Hour Mechanical Time Switch with Indoor Enclosure

  • 1 to 12 On/Off operations per day, minimum On/Off time - 1 hour
  • 2 HP Rating
  • General purpose use-lighting, pool heaters, a/c, fans, pumps, etc
$5298 /each
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Product Overview

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
  • 2 HP Rating
  • Manual override
  • 40 Amps per pole
  • General purpose use - Lighting, pool heaters, air conditioning, fans, pumps and more
  • Sturdy drawn steel enclosure with gray powder coat paint finish
  • CSA certified in US and Canada

Info & Guides

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Specifications

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Warranty / Certifications

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Customer Questions & Answers

How I installed this?

How I installed this?
Asked by: George
Followed directions. Easy to install.
Answered by: CB
Date published: 2017-06-14

could I use this for a higher voltage water heater?

Asked by: nate
Yes. Both circuits switch at the same time, so if the two supply wires are different electrical phases (220V wire to wire) they will supply 220V to the water heater. You just need to include a neutral wire to the "A" terminal for the clock motor to operate.
Answered by: sparky
Date published: 2017-06-28

Multi-Day Programming

Can I use this timer to shut off a water heater Mon-Friday at various times and then operate my water heater all day during the weekends?
Asked by: migzc
no
Answered by: gregor
Date published: 2017-02-28

Correct timer and mounting question

I want to use this timer to control fishing lights on our dock which will be 8 outdoor flood lights with 2 bulbs per fixture. Is this an appropriate timer for that application? Second, I want to remove a switch that is in an weatherproof box and install the timer on the weather proof box or will I have to unhook the conduit from the timer and hook it into the timer? I have never work with conduit before so I am trying to stay in my comfort zone. Thanks in advance
Asked by: JMP4911
This timer has a 40 amp rating, or 48 100W light bulbs at 120V, so it should handle the lighting load okay. As for wiring it, if you have room to mount the time clock by the weatherproof box, either just above or beside it, I would use an offset nipple or some plastic flex (trade name "carflex") to go from w/p box to timer. Between the w/p box and timer your would need 4 wires if using one pole or 6 wires if using both poles. For one these wires would be: hot, neutral, ground, and switch leg. For both poles you would add another hot and switch leg. You can just extend your existing switch wires to the timer. Whites (neutral) extended to the "A" terminal for the clock motor. Hot feeding switch to terminal "1" to feed one pole and the clock motor feed. Switch leg off switch to terminal "2" in timer. And green wire to the green ground screw near the timer dial.
Answered by: sparky
Date published: 2017-06-28
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Customer Reviews

T100 Series 40 Amp 125-Volt DPST 24 Hour Mechanical Time Switch with Indoor Enclosure is rated 4.6 out of 5 by 29.
Rated 4 out of 5 by from We've installed two of these and the first is still working after 15 years. The one I bought 2 y... We've installed two of these and the first is still working after 15 years. The one I bought 2 years ago broke. The light would remain on and the wheel would just spin.
Date published: 2017-05-13
Rated 5 out of 5 by from Well made product. Perfect for controlling a 220V load or two 120V loads to work at the same tim... Well made product. Perfect for controlling a 220V load or two 120V loads to work at the same time schedule. The motor runs with circuit 1 (120V and neutral) The enclosure is rated as weather resistant though I recommend a plastic enclosure for outdoor long term installations that will been subject the sprinkler spray. The bottoms tend to rust out first.
Date published: 2017-06-27
Rated 5 out of 5 by from Bought to replace one we already had and thankfully it... Bought to replace one we already had and thankfully it was the exact same one and it works perfectly. I LOVE this time, it saves a lot of my time from running around to turn lights on.
Date published: 2017-05-16
Rated 5 out of 5 by from Excellent product for older timers that need replacing. Easy to mount with multiple connection p... Excellent product for older timers that need replacing. Easy to mount with multiple connection points.
Date published: 2017-06-20
Rated 5 out of 5 by from Works great, a bit confusing with the wiring but google and I figured it out. Works great, a bit confusing with the wiring but google and I figured it out.
Date published: 2017-02-28
Rated 4 out of 5 by from a better nema rating enclousure will make it usable in... a better nema rating enclousure will make it usable in more locations
Date published: 2017-06-28
Rated 5 out of 5 by from Multi-purpose timer. I have one for my pool... Multi-purpose timer. I have one for my pool and exterior lighting.
Date published: 2017-05-09
Rated 5 out of 5 by from Does just what it is supposed to do. Easy installation... Does just what it is supposed to do. Easy installation
Date published: 2017-04-28
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