Intermatic 20 Amp Electromechanical SPST In-Wall Dial Timer-KM2ST-1G at The Home Depot


Model # KM2ST-1G

Internet # 203954916

20 Amp Electromechanical SPST In-Wall Dial Timer

Intermatic 20 Amp Electromechanical SPST In-Wall Dial Timer

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

$29.96 / each


In Stock



Model # KM2ST-1G

Internet # 203954916

The KM2 Series Electromechanical In-Wall Timers replace standard toggle wall switches and provide automatic control of outdoor or indoor lighting, fans, pumps, office machines and other types of circuits. Captive trippers are easy to set and cannot be lost. The timers feature easy wiring and installation.

  • 20 minutes switching interval
  • 72 trippers provide up to 36 on/off events in a 24 hour period
  • Three-way off/auto/on override switch provides continuous on or off positions
  • Reliable synchronous motor
  • CFL and fluorescent compatible
  • Requires neutral wire


Amperage (amps)  20  Assembled Depth (in.)  2.2 in 
Assembled Height (in.)  4.125 in  Assembled Width (in.)  2.375 in 
Certifications and Listings  1-UL Listed  Color Family  White 
Color/Finish  White  Electrical Features  Programmable 
Electrical Product Type  Timer  Indoor/Outdoor  Indoor 
Manufacturer Warranty  1 year  Returnable  90-Day 
Style  Dial  Timer Type  In-Wall 
Voltage (volts)  120  Wall Plate Included  Yes 
Wattage (watts)  2400.000 


Rated 3.5 out of 5 by 4 reviewers.
Rated 5 out of 5 by Excellent Smaller and compact and can set time much closer to actual time October 9, 2014
Rated 3 out of 5 by Works as advertised This timer was replacing a Dayton (company was gobbled up by Intermatic) timer that had the removable wheel with the metal timer tabs for on/off. The old model was available with an optional outlet and indicator light and you could just hit the manual button to turn the pump on or off and the timer would automatically resume the next scheduled ON or OFF sequence. Not so with this one. The switch has OFF, ON, or Auto but at least you know what position it is in. (my old timer had no indicator light). It is working well but I'm not sure that the thin plastic tabs you must push in and out to set the time will hold up long term It also requires a very DEEP box to mount in as all the guts go into the box rather than parts of the timer being on top of the electrical box. Our old standard depth box had to be replaced. It is one of only a few switches available for mounting on the wall in a standard sized (but deep) box that can handle a 1 hp pump motor. The other style of switch that is used for pool pump motors is huge but that is what you need if you pump is 1-1/2 hp or larger. August 5, 2014
Rated 5 out of 5 by Easy to install and use. You'l save allot of money and it's perfect for A/C that does not have thermostat controlled turn off. I saved $200 on my first bill. GREAT BUY!! October 15, 2013
Rated 1 out of 5 by Won't work in older homes In homes missing the white ground wire, this product will not function. Unfortunately, one needs to purchase the unit, unpack it, attempt to install it, and only then learn that it won't function. It should come with a minimal alert to the consumer that it only works properly under certain conditions. December 31, 2013
1-4 of 4


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