Intermatic Timer 220 Volt Metal Enclosure - T104R3



Model # T104R3

By Intermatic

  4.75 Average  



Model # T104R3

Alternate Part #'s 58-155-1020, INT-30-671, INTT104R3

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

220 V

?     Asked on 2/8/2022by eddie

I have a t104r3 that I need to replace the mechanism only because the lever to turn it on is worn off. what is the proper number for that replacement?

A  Answered on 2/9/2022 by InyoPools Product Specialist Craig C.

Hello Eddie.  The Intermatic Timer Mechanism T104M is the correct replacement timer mechanism for the Intermatic Timer model T104R3.  Intermatic Timer Mechanism Only 220V - T104M

?     Asked on 4/19/2020by Mike

I have a pentair 1.0 HP 230V with a pentair intellichlor running 24/7. Can I put a timer on it. What's the benefits? Will it save me money,and help save my equipment. Will the timer replace my outside breaker.


A  Answered on 11/6/2020 by InyoPools Product Specialist Hector F.

Hi Mike, you don't need to put a timer on the Intellichlor salt chlorine generator system however this timer is a good model to use with a pool pump that is 220/240 volts. 

?     Asked on 9/9/2019by Donovan D Smellie

Does the timer come with the "screw switches" for turning it on and off? They are not displayed in the picture!

A  Answered on 9/10/2019 by InyoPools Product Specialist Joe S.

Yes, this unit comes with Two Intermatic Trippers 1 Off & 1 On - 156T1978A

?     Asked on 12/9/2018by John

i have a model T30404R casing with 2 Intermatic timers. One of them no longer works. When I take it out I see the part number of the motor, but, not the part number of Intermatic unit. What Intermatic unit should I order?

A  Answered on 12/10/2018 by InyoPools Product Specialist Lennox H.

Hi, John. The Intermatic Timer Mechanism Only 220V - T104M is the replacement that you'll need. 

?     Asked on 5/11/2018by Inyo Visitor

Is the stationary pointer on intermatic timer fixed or screw installed. How does it get damaged and fall off?

A  Answered on 5/11/2018 by InyoPools Product Specialist Hector F.

The pointer is fixed. They really do not fall off and if so rarely to never. Maybe severe corrosion or damage to the unit would cause them to come off. 

?     Asked on 9/21/2017by Bob

I have a 1 1/2 HP hayward pump wired for 230 volts and a salt chlorinator which is 120. Can I use 1 timer for both? They pump is on a double pole 15 amp with 14/3 wire and the chlornator is on a sinble 15 amp with 14/2 wire.

A  Answered on 9/26/2017 by InyoPools Product Specialist Lennox H.

Hi, Bob. Unfortunately, you can not. The chlorine generator will have to also be wired for 230 volts. 

?     Asked on 6/27/2016by Jeff

Will either metal or plastic be suitable for outdoor operation?

A  Answered on 6/27/2016 by InyoPools Product Specialist Alan M.

Yes, either a metal or plastic enclosure are perfectly suitable for outdoor operation.

?     Asked on 6/2/2016by Cory

I have just purchased the QC1102 motor to replace my old 1hp motor (K48L2PA105) I have a max e glas II pump (P4E6E-151L). The circuit breaker in the subpanel outside are double pole 15 amp (30 amp total). Is this the correct timer? I can't tell what timer I currently have as all labeling is gone.

A  Answered on 6/7/2016 by InyoPools Product Specialist Lennox H.

Hi Cory, This is the correct timer that you can use with a double pole timer and the QC1102 motor.

?     Asked on 7/25/2015by Inyo Visitor

I have a 1.5 HP pump for circulation and a 1.5 HP booster pump for my pool sweep. Will this control both if I wanted them to come on at the same time?

A  Answered on 7/29/2015 by InyoPools Product Specialist Lennox H.

Hi, The Intermatic Timer 220 Volt Metal Enclosure can handle the two pumps if the max load does not exceed 40 amps.

?     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


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