By Intermatic



Part # T101M

Alternate Part #'s INTT101M

Product Description

These heavy duty Time Switch Mechanisms are designed for industrial, commercial and residential applications, and have the highest motor load ratings in the industry. They provide up to 12 ON-OFF operations each day with minimum ON-OFF time of 1 hour. All models are equipped with "ON" and "OFF" trippers and can be installed in almost all Intermatic enclosures. T101M Timer Mechanisms are 120 Volts and have a switch rating that is 40 AMP resistive.



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  • T10000R Enclosure Only - No Timer
  • T21000R
  • T30000R5 Intermatic 100 Amp Pool/Spa Control Panel Enclosure Only
  • T40000R
  • T40000R4 Intermatic T40000R4 100 Amp Specialty Control Panel
  • 156T4042A Fireman's Switch
  • WG1570-10D Motor, Time Clock Wg1570-10 (wg1570-10d)
  • 124T1952 Insulator, Time Switch
  • WG1573-10D
  • 156T6738A Insulator - Slave (10) per pack
  • 156T1978A Two Intermatic Trippers 1 Off & 1 On

Click here for more Intermatic Timers


?     Asked on 3/9/2008by Guest

How do I know wheather I need the T101M or the T104M?

A  Answered on 3/9/2008 by InyoPools Product Specialist Patrick P.

T101 or T104 should be on the inside door of your current timer or somewhere on the timer. If you cannot find this information you can unclip the timer clock mechanism and on the back of the timer there will be a motor. If there is a part # of WG1570 or 120V marked on the back of the timer motor then you would require a T101M 120V timer mechanism. If there is a part # of WG1573 or 240V marked on the back of the timer motor then you would require the T104M 240V timer mechanism. You may view or purchase these timers through this link http://www.inyopools.com/controls_intermatic_timer_parts.aspx 

?     Asked on 1/10/2012by Guest

Is the T101M the correct mechanism for the T101P3?

A  Answered on 1/10/2012 by InyoPools Product Specialist Patrick P.

Yes, the T101M is the correct mechanism for the T101P3 and T101R3.

?     Asked on 2/10/2015by Inyo Visitor

I need to replace an old T103M timer. Which replacement do I need?

A  Answered on 2/10/2015 by InyoPools Product Specialist Alex V.

Hello, I would recommend staying with the T103M mechanism.

?     Asked on 4/29/2015by Ronny

Will these fit the Model PF1202T Timer?

A  Answered on 4/29/2015 by InyoPools Product Specialist Robert M.

Hello Ronny - The T101M (120V) would fit the PF1202T box but it is not the correct mechanism. The correct mechanism is the T104M (220V).

?     Asked on 5/21/2015by Inyo Visitor

I have a pool timer Model # T101P which I need to replace. The enclosure is fine can I replace the clock only? The Model is T101 MD89 would this be a match?

A  Answered on 5/21/2015 by InyoPools Product Specialist Patrick P.

Yes if your enclosure is fine then this would be be the correct timer mechanism replacement for the T101P. This would be the complete insides of the T101P minus the outer enclosure / casing.


Est. Repair Time

Less than 1 hr

Tools Needed


0     1

I ordered the wrong timer.

Written on 11/24/2017 by Guest

It had 5 wires to hook up to my 3 wire set up. I am ordering a new one.

Were these instructions helpful? 


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