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Chart with T100 series timer

T100 series timer/
Versatile, functional, durable, dependable, repairable, ez DIY installation and parts, affordable, resistant to power surge, lasts '25 years.'

Resources:
How to wire T100 timers
How to set T100 series timers
Photos of disassembly
How to troubleshoot timer

Timer models and Repair parts shown below

CA3750
T100 series timers have 5 knock-outs
1 on back, 1 on each side and 2 on bottom

Keep enclosure door closed
How to set and operate T100 series timers
Intermatic T100 series timer
    Metal indoor box         Outdoor box           Plastic outdoor box     See thru outdoor     Mechanism     T170 w/ Day-skipper     Parts & manuals
How to set and operate T100 series timers

Indoor nema 1 Metal box
water heater timer
Nema 3R outdoor Metal box
T 104R
Nema 3R outdoor Plastic box
T101P timer
1)   120 volt indoor box
T101
120Volt SPST  40 amp 2 Hp
T171 120 volt with day skipper
T101D89 timer same as T101
601511 timer and 109076 timer same as T101
aka T185 timer/ 2E025 timer
Buy
T101 at Amazon
T171 w/ day skipper
   How to wire T101 and T171

Buy
 T101B       120V SPST separate load terminals

Resource
   How to wire T101B
1)   120volt outdoor metal box
T101R  120Volt SPST  40 amp 2 Hp
T171R w day skipper/ with power carry over

Buy
 T101R at Amazon
 T171CR w day skipper and power carry over

Resource
   How to wire T101R and T171R
1)  120volt outdoor plastic box
T101P 120Volt SPST  40 amp 2 Hp

Buy
 T101P at Amazon
Intermatic TMHDT101 T101

Resource:
   How to wire T101P
2)  120volt indoor box
T103 120Volt clock motor DPST can control 240Volt or other voltage on separate terminals/ 40 amp 2 Hp
T173 with day skipper

Buy
: T103 at Amazon
 T173 w/ day skipper
Resource
   How to wire T103 and T173
2)   120volt outdoor metal box
T103R 120Volt clock motor DPST can control 240Volt or other voltage on separate terminals/ 40 amp 2 Hp
T173R 120 volt with day skipper

Buy
 T103R at Amazon
 T173R w day-skipper
 T173CR w day-skipper and power carry
Resource
   How to wire T103R and 173R
2)   120volt outdoor plastic box
T103P 120Volt clock motor DPST can control 240Volt or other voltage on separate terminals/ 40 amp 2 Hp

Buy
 T103P timer at Amazon
Alternative timer/ Precision CD103

Resource
   How to wire T103P
3)  120volt indoor box
T105 120Volt 1NO and 1NC terminals/ 40 amp 5 Hp
T175 with day skipper

Buy
 T105     208-240-277V w/ NO NC contacts
 T175 w/ day skipper
Resource
   How to wire T105 and T175 timer
3)  120volt
T105 120Volt 1NO and 1NC terminals/ 40 amp
not available in outdoor metal box
3)  120volt outdoor plastic box
T105 120Volt 1NO and 1NC terminals/ 40 amp
not available in outdoor plastic box
4)  208-240-277volt indoor box
T102  208-240-277Volt SPST turns off 1 Hot wire / 40 amp 5 Hp
T172 with day skipper
Buy
T102 208-240-277V at Amazon
 T172 w/ day skipper

Resource
    How to wire T102 and 172
4)  208-240-277volt outdoor metal box
T102R  208-240-277Volt SPST turns off 1 Hot wire / 40 amp 5 Hp

BUY
 T102R at Amazon

Resource
   How to wire T102R
4)  208-240-277volt outdoor plastic box
T102P  208-240-277Volt SPST turns off 1 Hot wire / 40 amp 5 Hp

Buy
 T102P at Amazon
Alternative timer/ Precision CD101

Resource:
   How to wire T102P
5)  208-240-277volt indoor box
T104  208-240-277Volt DPST/ 40 amp 5 Hp
T174 with day skipper

Buy
 T104 208-240-277 V at Amazon
: T174 w/ day skipper

Resource
   How to wire T104 WH40 and T104-50 and T104-20 and T174
WH40 same as T104

Buy
: WH40 at Amazon
T104-20 (WH40)     208-240-277V (same as WH40 except no external override) at Amazon

T104-50 same as T104 except 50 Hz clock motor for European/ Asian market
5)  208-240-277volt outdoor metal box
T104R  208-240-277Volt DPST/ 40 amp 5 Hp
T174R 240 volt with day skipper

Buy
 T104R at Amazon
 T174R w day skipper
 T174CR w day-skipper and power carry

Resource
   How to wire T104R and T174R
5)  208-240-277volt outdoor plastic box
T104P  208-240-277Volt DPST/ 40 amp 5 Hp

Buy
 T104P timer at Amazon

Resource
   How to wire T104P
6)  208-240-277volt
T106 not available in indoor box

6)  208-240-277volt outdoor metal box
T106R  208-240-277Volt DPDT/ 1NO and 1NC terminals/ 40 amp 5 Hp

Buy
 T106R at Amazon
 T106R raintight timer at Amazon
T106      208-240-277v w/ NO NO contacts

Resource
   How to wire T106R
6)  208-240-277volt
T106 not available in outdoor plastic box

Nema 3R outdoor Plastic box
T101PCD82 timer
Mechanism only
T101M
Larger image

Mechanism only
Intermatic metal enclosure
indoor box
2T2040GA enclosure only

Buy:
2T2040GA standard metal Indoor
1)   120volt see thru door
T101PCD82 120Volt SPST  40 amp 2 Hp

Buy
Intermatic T101PCD82

Resource
How to wire T101PCD82
1)   120volt Mechanism only
T101M 120Volt SPST  40 amp 2 Hp

Buy
 T101M at Amazon
 T171M day skipper not available

Resource
How to wire T101M

Intermatic 2T2500GA
outdoor plastic box
2T2500GA Nema 3R
Outside: 9-3/8x 5-1/2 x 3-3/4
Plastic outdoor gray enclosure
Buy:
2T2500GA grey at Amazon
Square D
2)   120volt see thru door
T103 PCD82 120Volt clock motor DPST/ control 240Volt or other voltage on separate terminals/ 40 amp 2 Hp

Buy
 T103PCD82 timer at Amazon
Intermatic T103PCD82

Resource
   How to wire T103PCD82
2)   120volt Mechanism only
T103M 120Volt clock motor DPST can control 240Volt or other voltage on separate terminals/ 40 amp 2 Hp
T173M w day skipper

Buy
 T103M at Amazon

Resource
How to wire T103M and T173M
2T2485GA enclosure
outdoor metal box
2T2485GA Nema 3R
Outside: 9-3/8x 5-1/2 x 3-5/8
Rubber seal
Standard Metal indoor beige enclosure
Buy:
2T2485GA at Amazon
3)  208-240-277volt see thru door
T104PCD82  208-240-277Volt DPST/ 40 amp 5 Hp

Buy
 T104PCD82 timer at Amazon
Intermatic T104PCD82

Resource
   How to wire T104PCD82
3)  208-240-277volt Mechanism only
T104M  208-240-277Volt DPST/ 40 amp 5 Hp

Buy
 T104M at Amazon
 T104M timers at Amazon<
2T511GA enclosure
outdoor metal box
2T511GA Nema 3R weather resistant
Outside: 9-3/8x 5-1/2 x 3-5/8
Rubber seal
Standard Metal outdoor gray enclosure'
Buy:
2T511GA at Amazon

4)  208-240-277volt Mechanism only
T106M  208-240-277Volt SPDT/ 1NO and 1NC terminals/ 40 amp 5 Hp

Buy
 T106M at Amazon

Resource
How to wire T106R
Intermatic enclosures
Buy 2T2502GA Nema 3R
Outside: 9-3/8x 5-1/2 x 3-3/4
outdoor plastic box
Buy:
2T2502GA beige

Intermatic pool timers and manuals

Intermatic T104P201 timer
Larger image

How to set and operate T100 series timers

T104P201 Plastic box   24-hour 240V with fireman
pool timer in beige plastic indoor-outdoor  enclosure

T104R201  metal box   24-hour  240v with fireman
pool timer in beige metal indoor outdoor enclosure

24-hour timer
40 amp timer with Manual override supersedes programming until next programmed event.
Old style clock motor WG430
240Volt pool timer with fireman switch

Buy:
T104P201 plastic box at Amazon
T104R201 metal box at Amazon
156T1978 trippers at Amazon
156T4042A Fireman switch Amazon
Clock motor WG1573 at Amazon
Old style clock motor WG430
Resources:
T104P201 instruction manual
T104R201 instruction manual
How to set T100 series timers
How to wire fireman's switch

Larger image
Resources:
Wiring diagrams: How to wire T104P201 and T104R201
Same as T104

Intermatic 156T4042A fireman switch
Fireman's switch pdf
How to wire fireman's switch
How to connect fireman switch
156T4042A Fireman switch Amazon

DO NOT CONNECT POWER TO FIREMAN SWITCH.... the fireman switch is connected to terminals located on pool heater. The switch turns off pool heater 20 minutes before pool pump turns off... and this will purge the hot water from pipes and cause heater to last longer

T104M201
Intermatic T104R3
240volt no fireman same as T104R gray box

Larger image
T104R3    metal box  240volt
Metal beige indoor-outdoor enclosure
240Volt pool timer
NO fireman switch
Convert to T104R201 by installing fireman switch
T104P3      plastic box    240volt
Buy:
T104R3 beige metal box at Amazon
T104P3 beige plastic box at Amazon
T104R gray metal box at Amazon
156T1978 trippers at Amazon
Clock motor WG1573 at Amazon

Resources:
T104R3 manual/ same at T104 timer manual
How to set T100 series timers
Pool timer trippers and parts
How to troubleshoot timer

Larger image
Wiring diagrams: How to wire T104R3
Same as T014R
Intermatic T101R3
120volt no fireman switch
same as T101R gray box
Larger image
T101R3 metal 120 volt
T101P3  plastic    120 volt
Beige metal indoor outdoor enclosure
120Volt pool timer
NO fireman switch
Convert to T101R201 by installing fireman switch
Buy:
T101R3 beige metal box at Amazon
T101P3 beige plastic box at Amazon
T101R gray metal box at Amazon
156T1978 trippers at Amazon
WG1570 Clock motor at Amazon

Resources:
T101R3 manual/ same as T101 timer manual
How to set T100 series timers
Pool timer trippers and parts
How to troubleshoot timer

Larger image
Wiring diagrams: How to wire T101R3
Intermatic T101R201
120Volt with fireman switch

Larger image
T101R201   metal box  120V with fireman switch
Beige metal indoor outdoor enclosure

T101P201   plastic box   120V  with fireman switch
Beige plastic indoor outdoor enclosure

120Volt pool timer with fireman switch
Buy:
T101P201 Plastic at amazon
T101R201 metal at Amazon
156T1978 trippers at Amazon
WG1570 Clock motor at Amazon
156T4042A Fireman switch Amazon
Clock motor WG433 at Amazon

Resources:
T101R201 manual
T101P201 manual
How to wire fireman's switch
Fireman's switch pdf
How to set and operate timer
Pool timer trippers and parts
How to troubleshoot timer

Larger image
Resources:
Wiring diagrams: How to wire T101R201

Intermatic 156T4042A fireman switch

Fireman's switch pdf
How to wire fireman's switch
156T4042A Fireman switch Amazon

156T1961A tripper 
156T1978 trippers Amazon
Can have 12 sets ON-OFF trippers on dial
Intermatic 22T535GR
T106P3
Larger image
T106P3    plastic box  240volt
Plastic beige indoor-outdoor
For 2 speed pool pumps SPDT
No fireman switch
Buy
T106P3 beige plastic box at Amazon
T106R metal gray box at Amazon
Resources:
How to wire T106
T106 manual
T10604R manual
T100 series parts
How to wire two speed pump
Install your own two speed timer
2 speed pump Resource:
How to wire two speed pump
4E233 on delay timer
B000LDGFL4
How to wire on delay timer
T104M201 240 volt with fireman switch
B0039Q3QRQ
Intermatic 22T535GR

Intermatic timer snaps into 22T338GR bracket
6" tall x 5" wide x 2" deep
Surface Mount T100 series, ET series to surface or inside larger enclosure or inside control center
Mount T100 series, ET series to surface or inside larger enclosure
Use 22T338GR-bracket inside each Intermatic control center to hold T100 series timers, PE series timers, ET series timers etc
Or use independently to surface mount timer inside larger enclosure, or inside competitor's enclosure
Buy:
22T338GR at Amazon
Buy 3 channel digital time
Resource:
3 channel digital timer and other digital control centers
22T338GR bracket
WG1573 clock motor
Look for clock number
WH40 clock motor
Consumes 3 watts power

Clock motor can be replaced
Star screws
3 watt consumption = 26,280 watts per year = 26.28 Kwh per year @ .12 = $3.15 operating cost
60 Hz for US market/ 50 Hz for Europe Asia
Hz or cycles in number of generator rotations per second

Resources:
How to replace Intermatic clock motor

Adapt any timer above to different voltages:
Buy:
Applies to T104, T174, WH40, pool timers etc
WG1573 for 60 Hz 208-277V  WG1573 208-240Volt at Amazon
WG1570 for 60 Hz 120V  WG1570 120Volt at Amazon
WG1576 for 60 Hz 480V WG1576 480Volt at Amazon
CW190 for 60 Hz 24V CW190 24V at Intermatic
WG1571 for 50 Hz 120Volt  WG1571 motor for 50 Hz 120Volt at Intermatic
WG1574 for 50Hz 208-277V WG1574 motor for 50Hz 208-277V Amazon
Intermatic clock motor
Clock motors
Clock motors
Buy 60 Hz for T100 series:
WG1573 208-240Volt at Amazon
WG1570 120Volt at Amazon
WG1576 480Volt at Amazon
CW190-10 for 24 volt 60 Hz 24V at Intermatic

Buy 50 Hz for T100 series
America use 60 Hz power. Rest of world uses 50 Hz.
50 and 60 hertz devices are not always compatible.
WG1571 motor for 50 Hz 120Volt at Intermatic
WG1574 motor for 50Hz 208-277V Amazon

WH21:
Buy:
WH233-18 clock motor at Intermatic

Sprinkler timers &T1900 & T1970 series
Buy:
125Volt WG730 motor at Amazon
208-240volt WG733 motor at Amazon
480V WG736 clock motor at Amazon

T1800 series
Buy:
125Volt WG430-20 at Amazon
208-277 Volt WG433-20 at Amazon

C8800 series cycle timer
Buy:
WG770 125V clock motor for C8865-6
WG773 208-277V for C8866
WG780 C8835 125V at Amazon
WG750 C8845 125V clock motor at Amazon
WG790 125 volt clock motor for C8815 15-minute timer

T7400 7-day series:
Buy:
WG1600 125V motor at Amazon
WG1603 208-277V motor
Intermatic T104P201 pool timer
Larger image
Resource:
Pool times and manuals
Pool timer wiring



Same Trippers and
replacement clock motors
Resource:
Control centers and parts
Freeze controls and parts
T100 series timers and control centers
Intermatic 156T1978A tripper
Timer dial can hold 12 sets
1 on- 1 off for each 24 hour period
Buy trippers
156T1978A set 2
156T1978A trippers
PA115 - 25 sets
156T3085A skipper screws

Intermatic clock motor
Buy clock motors:
US power grid is 60 Hz

Buy:
WG1573 208-240-277V
WG1570 120V
WG1576 480V
Resources
How to replace clock motor
How to T100 series wire timers
Troubleshoot timer

Buy mechanism:
T104M 240 volt mechanism
T101M 120 volt mechanism
More mechanisms
124T2411A insulator pk 25
Insulator/ black rigid
124T2411A  rigid pk 25

Buy:
25 pack rigid

Resource:
How to install insulator
124T1952 Insulator
Insulator/ translucent
Buy:
124T1948 single pole for T101, T102, T105

124T1952 double-pole for T103, T104, T106
Freeze knob
Freeze control
Buy
178T24 thermostat
Inline freeze switch/ 15 amp max
Resources:
178T24 wiring
All freeze controls and parts
Resource
How to make a freeze outlet
Intermatic 156T4042A fireman switch
Buy Fireman switch
156T4042A Fireman switch
Resources
Fireman's switch pdf
Timers with fireman's switch

How to connect fireman switch
156T6738A insulators
Safety insulator for override switch
Buy:
156T6738A insulators

Resources
Intermatic pool timer parts/pdf 
Control center parts sheet/ pdf
Enclosures
Intermatic/ Grasslin enclosures
Resources:
Metal and plastic enclosures
Intermatic enclosures
Intermatic sprinkler timers and wiring Intermatic sprinkler timers
Resources:
How to wire Sprinkler timers + rain sensor + manuals + buying options
How to connect rain sensor when timer does not have rain terminals
How to Set & Troubleshoot Intermatic sprinkler timer/ pdf
Multi-function timers and wiring 40 amp
Resources:
Multi function timers and manuals
GM40 timer  Intermatic GM40AVE    Woods 59402 timer   Tork DTU water heater timer  
T1906-5  T1975-6 heavy duty timers 20 amp
Resources:
Multi function timers and manuals
Intermatic T1906 timers
ET series digital timers/ 20-30 amp/ 120-277 volt/ multi-channel (same timer controls two circuits with different programming)
Resources:
ET series timers
           Intermatic ET279 timer    Et70215 timer
Timer modules/ 16 amp/ 12-240 volt
Resources:
Timer modules/ 16 amp/ 12 to 240 volt
MIL72E timer    FM1-timer   MIL72A timer      CN101A timer wiring        Intermatic PB300       


Larger image

T100 series wiring
How to operate T100
T100 Manuals:
240 volt
T104 manual
T102 manual
T106 manual with NO NC terminals

120 volt
T101 manual
T101B manual
T103 manual
T105 manual with NO NC terminals


T170 skip-a-day manuals
T175 manual

T174 manual

T173 manual

T172 manual

T171 timer manual
Pool timer manuals
T104P201 instruction manual
T104R201 instruction manual

T101R201 manual
T101P201 manual
Support the economy:
Buy water heaters from my associate links:

50 gallon Gas water heaters at Amazon
40 gallon gas water heaters at Amazon
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Hybrid / heat pump/ water heaters at Amazon

Resources:
How to install gas water heater
How to install electric water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
Point of use water heaters
Resources:
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Icon gas valve

How to replace water heater element Waste King disposal
How to wire tankless electric

How to install tankless recirculation


Install point of use water heater
Titan tankless

Contactors/ relays
Install and troubleshoot garbage disposal Waste King disposal
Programmable timers

Woods timers
surge protection
Anode rods anode rods
Recirculation system

Tankless recirculation
Point of use water heater
Type 1 and type 2 surge protection surge protection
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Electronic parts

Industrial supplies

Tools and home improvement

Home and garden

Hayward pool
Pentair pool

Southwire electric
Buy
Tools
DEWALT
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SKIL
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Porter-Cable
Bosch

Irwin Hand tools
Klein hand tools
Fluke electrical testing
Dremel hobby tools

Campbell Hausfeld air powered
Tekton automotive

Powerbuilt automotive
Saws and saw blades
box timers Resource:
Compare box timers
DPDT timers
Intermatic
Control water heater w/ Z-wave
Intermatic control centers Resource:
Intermatic control centers: and parts
Digital control centers and parts
Tork control centers and parts
Subpanels
All control centers and parts
Enclosures
programmable timer Resource:
Programmable timers
Countdown timers
Off delay timers
On delay timers
Timer modules
Din rail
Twin & one-shot
Woods
Intermatic
Tork
Low voltage power packs Recirculation systems
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