Intermatic Timer 220 Volt Plastic Enclosure - T104P3



Part # T104P3

By Intermatic

  4.79 Average  



Part # T104P3

Alternate Part #'s INTT104P3

Product Description

This heavy duty mechanical time switch is designed for industrial, commercial and residential applications. This time switch has the highest horsepower ratings in the industry for loads up to 40 amps resistive from 120 to 480 volts providing direct 24 hour time switch control of most loads.

This series provides 1 to 12 "ON/OFF" operations each day with minimum ON/OFF times of 1 hour. All models are equipped with one "ON" and one "OFF" tripper.

• Booster Pumps
• Lighting
• Hydro Chlorinators
• Fans
• Air Conditioning
• Music and Signal Systems
• Heat Pumps 


Click here for more Intermatic Timers

Product Specifications

Typical Order Qty.:
220 V

?     Asked on 4/14/2020by Rozie Gabriel

Please see photos attached and let me know if Model T104P3 is the correct exact item to replace the one I have. I believe the timer is the only part it need because you can hear it running but the clock portion never moves. The one we have is a 24 hr dial time switch. Is this a 24 hr DPST? Can you purchase just the timer part without having to replace the entire box? Do you sell just the part needed?


A  Answered on 11/23/2020 by InyoPools Product Specialist Megan C.

Yes, the Intermatic Timer 220 Volt Plastic Enclosure - T104P3 is the timer in the image. The internal Intermatic Timer Mechanism Only 220V - T104M can be ordered. This is the parts page to the T100 Series time switches 

?     Asked on 6/29/2019by Jim Quinn

I have a 1,25 hp pool pump . typically what voltage timer do I need

A  Answered on 6/30/2019 by InyoPools Product Specialist Lennox H.

Hi, Jim. The timer is based on the electrical input of the motor and what you're able to supply. Some motor can operate using 120 or 230 volts. 

?     Asked on 2/8/2019by Richard G. Verlander, Jr.

I have a Paragon Electric Co Model 4014-20 ...C2296...Contact Rating 40A....2hp 208-240 Vac timer that has been operating since 1986. It stopped going on and off. What do I need to purchase to fix it or replace it? Thanks in advance for your help. Rick Verlander

A  Answered on 2/8/2019 by InyoPools Product Specialist Lennox H.

Hi, Richard. This Intermatic Timer T104P3 can be used as a replacement. 

?     Asked on 12/6/2018by LOU


A  Answered on 12/6/2018 by InyoPools Product Specialist Lennox H.

HI, Lou. Yes, this timer can be installed outdoor mounted on a wall in close proximity to the pump. 

?     Asked on 7/12/2018by Inyo Visitor

I have a 1.5 horsepower pool pump and looking for a timer. from the picture, it doesn't appear that installation is as simple as plugging the pump into the that correct? does it take an electrician to install? thx

A  Answered on 7/12/2018 by InyoPools Product Specialist Lennox H.

Hi. Correct, it is not as simple as plugging the pump into the tirmer. The pump will have to be hard wired to the timer. Check out these following How To Install an Intermatic T104 Timer and How to Program an Intermatic T100 Series Timer guides for installation instructions. If you feel that you're unable to complete the job, you can higher an electrician. 

?     Asked on 6/20/2018by Mike G

I want to apply power to a new heat pump (220VAC single phase) and also to the pool's filter pump (110VAC) at the same time. Is this the correct Intermatic product? Seems like I can use it for switching on/off the 220VAC to the heat pump and just grab one leg of power from the timer to run the 110VAC filter pump.

A  Answered on 6/23/2018 by InyoPools Product Specialist Lennox H.

Hi, Mike G. This timer will not be able to control a heat pump and pump. Heat pumps do not require an on/off timer because they're equipped with a water pressure switch that will turn the unit off/on when water flow is detected. You will need the Intermatic Timer 110 Volt Plastic Enclosure - T101P3 to control your pump. 

?     Asked on 6/15/2018by jIM

can you use this timer for the week and set different times for M-F and S&S?

A  Answered on 6/20/2018 by InyoPools Product Specialist Andy O.

Hello Jim- This Intermatic Timer 220 Volt Plastic Enclosure - T104P3 will only allow you to program one 24-hour schedule. We do not have anything that would allow you to program different schedules for different days.

?     Asked on 5/23/2018by Rob m

My timer turns and keeps time. Turns on as it should but is not turning off.

A  Answered on 5/23/2018 by InyoPools Product Specialist Patrick P.

Hi Rob, Normally this happens because of a bad Timer Tripper I would suggest purchasing some new Pool Pump Timer Trippers. You could also try swapping the on tripper with the off tripper and then you would see the opposite occur if you had a bad tripper. For example, your timer would not turn your pump on but it would turn your pump off.

?     Asked on 4/17/2018by Hugh Gallagher

I have a 2 timer , 220V intermatic (T0404R (?)) timer controlling my 2 speed pump. I turned on the pump via the timer, and get a constant Humming sound from the timer. I disconnected the motor, and still get the hum at the timer. Should i replace timer? also, the Circuit breaker has 2 pairs of breaker feeding timer, and 1 breaker is not fully "clicking" on. Is it possible this is reducing the current and causing the hum? thanks. .

A  Answered on 4/24/2018 by InyoPools Product Specialist Lennox H.

Hi, Hugh. Yes, this is possible. I would recommend replacing the breakers first then the timer. 

?     Asked on 4/15/2018by Inyo Visitor

I have an intermattic T104P3, it does not turn: do i have to replace the entire timer assembly.

A  Answered on 4/18/2018 by InyoPools Product Specialist Lennox H.

Hi. The issue could be the motor, you can either replace the Time Clock Motor - WG1573-10D or the entire T104 Mechanism - T104M.

?     Asked on 3/16/2018by Kevin

I have a Pentair Ultratemp 110 heatpump. Can I put this on a T104 tiger? Max amps is 42. It’s currently on a 50amp breaker. Looks like the manual for the timer says max 40amp per side. This would only draw max of 21 per lug.

A  Answered on 3/21/2018 by InyoPools Product Specialist Alex V.

Kevin, It is not recommended to run the heat pump off of a timer. 

?     Asked on 1/27/2018by Inyo Visitor

is the electrical connection 120 or 240 volts

A  Answered on 1/29/2018 by InyoPools Product Specialist Lennox H.

Hi. The electrical input and output connections are 230 volts. 

?     Asked on 7/8/2017by Jim

How can I find out which intermatic timer I have?

A  Answered on 7/10/2017 by InyoPools Product Specialist Lennox H.

Hi, Jim. There is a sticker on the unit with the unit model or find out what voltage is being supplied from the breaker. 

?     Asked on 4/30/2017by George Tett

My pool pump timer says T120 not t104 what is the difference? Thanks

A  Answered on 4/30/2017 by InyoPools Product Specialist Lennox H.

Hi, George. I was not able to find any info on an Intermatic T120 model timer. If you can provide the voltage that you need we can locate the correct replacement.

?     Asked on 3/25/2017by Ron

pump is rated 115/230, 1 1/2hp. How do I tell if wired 115 or 230, to determine whether t101p3 or t104p3 is correct? I just received the t101p3 but not sure if right size.

A  Answered on 3/28/2017 by InyoPools Product Specialist Lennox H.

Hi, Ron.  You would have to check the leads coming from the breaker using a volt meter. If you have only 115 volts coming from the breaker then you would need the T101P3. If both leads have 115 volts each then you would need the T104P3.

?     Asked on 5/23/2016by Inyo Visitor

The clock is not moving. Must I replace the entire unit?

A  Answered on 5/23/2016 by InyoPools Product Specialist Patrick P.

No you would not need to replace the entire timer, you would just need to replace the T014M Timer Mechanism

?     Asked on 5/23/2016by agustin

i have an intermatic timer model#PT104P3 24 hr dial timer switch (DPST) but I just want to purchase the timer mechanism. What is the correct description for that item alone? Part number, etc..

A  Answered on 5/23/2016 by InyoPools Product Specialist Patrick P.

Hi Agustin, The timer mechanism only for the T104P3 is Part # T104M Timer Mechanism Only

?     Asked on 5/11/2016by Christopher Mackey

I have this timer, but am thinking about buying a variable speed pump. I also have a salt system can I wire the pump from this timer to get power all the time because the VS pump has its own timer and wire the salt system to turn off and on when the pump turns on. Thanks for any help you can give me.

A  Answered on 5/14/2016 by InyoPools Product Specialist Lennox H.

Hi Christopher, You can wire the pump to the timer and remove the trippers so that it has power all the time. The salt system will run once the pump actives the flow sensor.

?     Asked on 9/4/2015by fallmd

Inground pool filter timer intermatic 220 volt doesnt work ,although pump works with off/on switch.Its dial rotates with time,but doesnt control pump . It all happened after short circuiting in a new pump wiring.It seems besides damaging pump it has damaged timer also.Can timer be repaired ? or only to replace with a new one !

A  Answered on 9/9/2015 by InyoPools Product Specialist Lennox H.

Hi, It sound like you may need to replace the On/Off Trippers or the Intermatic Timer Mechanism Only 220V (T104M). I would also recommend that you get a licenses electrician to look at the your setup.

?     Asked on 7/29/2015by Bobby

I have two pumps, filter and pool cleaner, to operate with a timer. Will it take two timers? The cleaner pump can not operate unless the filter pump is on. Can I do the wiring? Thanks, Bobby

A  Answered on 8/4/2015 by InyoPools Product Specialist Lennox H.

Hi Bobby, You can use one timer if you want the two pumps to work in synch with each other and the max amp load does not exceed 40 amps. If you know what you're doing then you can if not I would consult with an license and insured electrician.

?     Asked on 9/2/2014by Guest

Once I install this timer T104P3 how do I set the time?

A  Answered on 9/2/2014 by InyoPools Product Specialist Patrick P.

After install of the T104P3 all you need to do is pull the round yellow metal portion of the timer out, while holding rotate it until the proper time is pointed at by the metal handle/arrow pointing downward and then push it back.

?     Asked on 1/23/2013by Guest

Will the T104 M work for the Intermatic T104P3 timer?

A  Answered on 1/23/2013 by InyoPools Product Specialist Patrick P.

Yes, the T104 will fit inside of the Intermatic T104P3 timer.

?     Asked on 5/26/2009by Guest

Does this timer have knockouts for the electrical and where are they located?

A  Answered on 5/26/2009 by InyoPools Product Specialist Patrick P.

Here is all the information we have regarding the knockouts: Knockouts - Combination 1/2" - 3/4" nominal knockouts, one on the back and each side of case, two on bottom

?     Asked on 12/26/2007by Guest

How many on/off devices come with the unit? I am using this for my eletric hot water heater, I want the heater to come on around 5:00AM and off at 7:00AM, then on again at 5:00PM and off and 7:00PM. So I guess I'm asking can I program two on and off's or do I have to buy something else?

A  Answered on 12/26/2007 by InyoPools Product Specialist Patrick P.

This timer comes with one "On" tripper and one "Off" tripper  but can accommodate up to 12 On/Off positions. So to accomplish the following "...come on around 5:00AM and off at 7:00AM, then on again at 5:00PM and off and 7:00PM" You would require the purchase of the timer which comes with 2 trippers, plus the purchase of one additional set of on / off trippers which you may view or purchase here

?     Asked on 2/17/2007by Guest

I have a T104R timer is this the proper replacement?

A  Answered on 2/17/2007 by InyoPools Product Specialist Patrick P.

The T104R3 or the T104P3 are direct replacements for any T104 timer. The only difference between these two timers is that the T104R3 comes in a metal enclosure and the T104P3 comes in a plastic enclosure.

?     Asked on 9/6/2006by Guest

My pool pump motor indicates V115/230. Will thistimer accommodate the pool pump? Also,can you tell me the voltage on the clock motor?

A  Answered on 9/6/2006 by InyoPools Product Specialist Patrick P.

Your pump can be wired either 115V or 230V If you have your pool pump wired at 230V than you would want to go with the T104P3 timer if you have the pump wired at 115V than you would want to go with the T101P3 timer. T104P3 timer has a 230V time clock motor and the T101P3 timer has a 115V time clock motor. You may purchase either of these time clocks through the following link


Est. Repair Time

1 to 2 hrs

Tools Needed

Screwdriver, Pliers, channel locks

0     1

18 yr old box latch was broken and internals were very stiff to move

Written on 3/25/2017 by Guest

This was a simple one-for-one replacement.
1.) shut power off
2.) label wires so they can be reconnected to the same terminals.
3.) disconnect wires - screwdriver.
4.) disconnect three conduit connections (channel locks)
5.) Unscrew Enclosure from wall and attach new Enclosure using same screws
6.) reconnect conduit
7.) reconnect wiring
8.) set the correct time and the two on/off toggles
9.) turn power back on.

Were these instructions helpful? 


Review Summary

 (Average 4.79  out of 5 stars)
14 Rating
5 star:
4 star:
3 star:
2 star:
1 star:

The Most Helpful Review

The Most Recent Reviews