Question about Intermatic 24 Hour Mechanical Mechanisms T103M Series

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Need a wiring diagram for Intermatic T103M 220 V

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How do I wire a cleaner pump to P1403ME, is the aux 220 capable?
I assume both pump and cleaner are on different breakers.
Is the pump 2 speed? Or 1 speed?
What other equipment is being operated?

Lets assume 2 breakers, with single speed pump.
30 amp breaker and 10 gauge wire for pump
20 amp breaker and 12 gauge wire for cleaner
You can control 240Volt circuits by turning off 1 or both hot wires: In this instance the diagram shows both hot wires turned on-off for pool pump, and 1 hot wire turned on-off for pool cleaner

If breakers are inside control center:

Gene h

Jul 04, 2014 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

Can i change the model T101P3 timer from 110 to 220?

1) Yes. Change clock motor from WG1570 to WG1573
Wiring is same as T102 timer:

2) If new pump motor is 2-speed, then converted T101P3 cannot handle 2-speed pump.
Use T106 timer, or T1906 timer:

3) New T106 or T1906 timer mechanism will snap into T103P enclosure without changing boxes.
Any intermatic timer will snap into Intermatic enclosure.
Other brands of timer can adapt to Intermatic enclosure using Tork IAP adapter bracket.

Mar 10, 2013 | Hardware & Accessories

1 Answer

How to wire a intermatic pe153 neutral and ground wire. I only see a lug for the hot wire. Where does a neutral and a ground connected to the pe153 timer?

Neutral is common to the neutral motor terminal. The hot wire (line) goes to the other motor (timer) terminal. Your pump is connected to the "Load" terminal.

If your motor is running on 220 ... you will need a 220 timer switch and there will be two 'load' and two 'line' terminals. In the case of 220 ...there is no neutral. Ground goes to the case ... if it is metal. Otherwise, just continue the ground to the motor ... You will also of course, have to bind the motor using the bond terminal to connect to the pool bonding system.

Oct 18, 2011 | Intermatic Digital Time Clock In Metal...

1 Answer

These are set up for 220, where does the other line wire go

normally you bypass the photo control with the other line and go straight to the load with it. wiring diagram should be in the instruction pamphlet

Aug 16, 2011 | Intermatic K4123C Photo Cell Control...

1 Answer

I had an intermatic 220 timer that died. I am trying ti reconect my wires to a replacement timer from GE. The GE is the 208-277 VAC. On the intermatic there was two red wires connected to the second...

Necessary for you to match up terminal numbering with actual numbers for each timer.
Information below is for 240volt timer controlling one single 240Volt load.
GE15601 has terminals L 1 X 2 from left to right
Intermatic T104 Has terminals A 1 2 3 4 from left to right

Here's the crossover from 240Volt T104 Intermatic to 240Volt GE 15601 for single-240Volt-load
Intermatic terminal 1 connects to GE terminal L
Intermatic terminal 2 connects to GE terminal 2
Intermatic terminal 3 connects to GE terminal 1
Intermatic terminal 4 connects to GE terminal X
Intermatic terminal A is not used in typical 2-wire 240volt circuit.

More links:

Jul 30, 2011 | RTO Intermatic T106M Timer Mechanism Only...

1 Answer

T104 double how do i install it on a 220 v hot water heater

Intermatic T104 is 240V timer with 240V clock motor.
Wiring diagrams are shown on links below:
Terminal A is not used unless cable from breaker box has extra neutral wire. Extra neutral wire would connect to terminal A.
T104 has the extra terminal A since same mechanism is used for T103 120V timer that utilizes terminal A.

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 01, 2011 | Intermatic T103 Indoor 120-Volt 40-amp...

3 Answers

Can I used the T103M dpst spst timer for christmas lights? I would be coming off 2 20amps breakers in a single slot. I relly don't understand what a dpst and spst are (what they do) I am trying to hook up...

T103M is 120Volt timer that can handle all the Christmas lights.
Minimum on-off time 1 hour.
Rotate dial until current time lines up with silver pointer.
Set on-off trippers on dial.
Let's go step by step.

1) T103 has terminals A 1 2 3 4 >> terminals are also called poles
DPST (double pole single throw) and SPST (single pole single throw) are two different ways to wire this particular timer.
T103 timer can be wired numerous ways... but your project is not complicated.
DPST means timer turns off two terminals/poles (double pole) with each click/throw of timer switch (single throw)
SPST means timer turns off one terminal/pole (single pole) with each click/throw of timer switch (single throw)

2) T103 timer is ST single throw, all the lights come on at same time. So this timer is 1 channel.
1 channel timers are either ON or OFF and everything turns on-off at same time.
You cannot stagger on-off times with 1 channel timer.
If you want upstairs and downstairs lights to come ON at different times, you need two timers .. or a 2-channel timer (which is different ballgame).

3) T103 timer has 120Volt clock motor that is connected to terminals A and 1.
Look at timer and you can see small white wires connected to A and 1 terminals that power 125V clock motor.
When wiring this timer, your wires from 20 amp breaker box connect to terminals A and 1.
Black hot wire from breaker must connect to terminal 1
White neutral wire from neutral busbar must connect to terminal A

4) Terminal 1 must be hot so when timer switch clicks ON, it sends power to terminal 2.
Your load wires connect to terminals A and 2
I made simple drawing of SPST option showing how to wire T103 to 3 receptacles.
Fixya downgrades image so it's hard to see.
Hot wire to terminal 1
Load wire to terminal 2
Neutrals on terminal A
To see image larger:

If you want to wire timer for DPST, which is necessary for loads exceeding 2 horsepower (1500 Watts) on each terminal
Notice black jumper wire from terminal 1 to terminal 3
Notice all white neutral wires to terminal A
To see image larger:
I made third image for guy who was wiring high amperage blowers, that show wiring for two T103 timers. Having two timers would let upstairs and downstairs lights come on at different times.

Dec 11, 2010 | Intermatic 24 Hour Mechanical Mechanisms...

1 Answer

Can you fit a frost switch to the T10404R

Intermatic makes a freeze protection control that wires directly into a 240V timer.
If you already have a freeze control, the wiring diagram might help.

The manual has this image larger.
It shows wiring to connect the freeze control directly to one 240V timer.
Intermatic make a freeze control for 1 or 2 circuits.

Intermatic page showing Pool and Spa timers

Nov 11, 2010 | Intermatic T10404R - Two 220 time clocks...

2 Answers

How do I determine what model number my Intermatic timer is?

The timer enclosure is plastic and reads part number 2T2921A. The label under the enclosure part number faded and is illegible. IIt ods have a yellow dial. I checked both units at the HW store and they are identical to me. The wiring diagrams on the Intermatic side are also identical. I need to determiine somehow if mine is 220 or 120V. Thanks.

Nov 02, 2009 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

Need a picture of an already wired T2005

You are placing a pretty tall order here. You want someone to go to a timer that is wired - take a picture of it, transfer it somehow to the computer then attach it here somehow and or draw a diagram ... and for what benefit???? There is a schematic on the door of the switch, at least the dozen or so that I maintain anyway.

There are three termnals in the switch, a common for a white, a hot black and a switched black.

The "line" is the hot black and a white. Your load (white can come to the line white if you want but it is not necessary) a black wire that goes to your light or motor or what ever you are turning on.

If this is a two pole switch (220 V AC) please indicate in your question/response.

If I have misunderstood your question, pleae ask again.

thank you


Oct 06, 2009 | Day-Timer Intermatic T2005 Timer SPDT 20A...

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