T185 timer is same as T101 series timer

Wiring begins here

Home Applies to T185, T101, T101R, T101P, T101PCD82, T171, T171R, T171CR, T101R3, T101P3, T101R201, T101P201, T101M, T171M  see all models and voltages
water heater timer
Large image

Indoor metal box
Buy:
T101 series at Amazon

T175 timer
Larger image

Indoor metal box/ day skipper
Lets you skip one or more days per week
Buy:
T171 at Amazon
T101M
Larger image

Mechanism only
Use thumb spring located top inside timer to remove old mechanism from enclosure
Buy:
T101M at Amazon
T 104R
Larger image

Outdoor metal box
Buy:
T101R at Amazon
T 104R
Larger image

Outdoor metal box/ day skipper
Buy:
T171R at Amazon
T171RCR carry-over
T101P timer
Larger image

Outdoor plastic box
Buy:
T101P at Amazon
Outdoor plastic box/ see thru door
Buy:
T101PCD82

T101R3
T101R3 Outdoor metal box
Buy:
T101R3 at Amazon
T101R210
T101R201 Outdoor metal box/ With fireman switch
Buy:
T101R201 at Amazon
T101R210
T101P201 Outdoor plastic box/ With fireman switch
Buy:
T101P201 at Amazon

Wiring for other models Resource:
T104 & T174 wiring
T103 & T173 wiring
T101 & T171 wiring
T101B wiring
T102 & T172 wiring
T105 & T175 wiring
T106 & T176 wiring
Wiring for other T100 series timers
T101 wiring
Detail below
T-101 timer 120Volts

Resource:
T101 series
T171 skip-a-day series
T101R201 manual
T101P201 manual
Sell sheet with model numbers
Replacement clock motor
T100 series repair parts
How to operate and set T101 timer
How to find Hot wire
Pool timers
T-101 timer 120Volts

T-101 timer for 120 Volt water heaters

T-101 SPST [single-pole single-throw]
Black Hot wire must connect to pole 1.
Neutral must go to pole A
Black to Load goes to pole 2
White to Load goes to pole A



T101 timer for 3 phase
Larger image
T-101 timer controls 3-phase
Use T101 120Volt timer to control 3 phase loads.
use wiring diagram above to control 3-pole contactor, or diagrams to left and right
Neutrals connect to terminal A
Hot from breaker connects to terminal 1
Hot to contactor connects to terminal 2
No fuse required on incoming line.
Fused disconnect required on 3-phase line and timer in most commercial applications
Resource:
More 3-phase timers

Larger image
Method 1: change clock motor
to 240Volt
Larger image
T-101 timer  240 Volts
Convert T101 into T102 timer to control 240Volt load:
Replace 120volt WG1570 clock motor with WG1573 clock motor. Connect new clock to same terminals A and 1.
240V: L1 Hot from breaker connects to terminal A; L2 Hot from breaker connects to terminal 1
240Volt wires going to Load connect to terminals A and 2.

T-101 changed to 240 V (207-277)
Buy:
WG1573 for 60 Hz 208-277V Amazon
Method 2: Wire timer for 240Volt
Larger image
T101 timer is fully repairable
Resource:
How to take apart and repair T100 series timers
Intermatic clock motor T-101 clock motor 120 V
Buy:
WG1570 for 60 Hz 120 volt Amazon
T-101 clock motor 120 V
Buy:
WG1570 for 60 Hz 120 volt Amazon
Change T101 timer to different voltage
by changing clock motor
Intermatic clock motor >>>>> Intermatic clock motor
T-101 changed to 24 volt
CW190-10 for 24 volt 60 Hz 24V at Intermatic
T-101 changed to 240 V (207-277)
Buy:
WG1573 for 60 Hz 208-277V Amazon
T101 changed to 60Hz to 50 Hz
WG1571-10D motor for 50 Hz 120Volt
T-101 changed to 480 Volts
Buy:
WG1576 for 60 Hz 480V at Amazon
How to replace Intermatic clock motor
 156T1961A tripper Trippers
Dial can have 12 sets ON-OFF trippers
Buy:
156T1978 trippers Amazon
124T1952 Insulator
Larger image

124T2411A insulator pk 25
Insulators
-Keep insulator over screw terminals to prevent accidental electrocution hazard.
Insulator pushes down over two knobs located on timer mechaism below the yellow dial.
Translucent
124T1948 single pole T101, T102, T105
124T1948 single pole T171, T172, T175
Buy:
124T1948 at Amazon

Black rigid
124T2411A  rigid
Buy:
At Amazon
2T2485GA enclosure Convert indoor timer into outdoor timer:
Buy different enclosure.
Use thumb spring located top inside timer to remove mechanism from enclosure

Buy:
2T2502GA beige plastic Outdoor box at Amazon

Resource
More enclosures
Installation tips
-Secure wire or conduit to enclosure. All wires, enclosures and conduit must be secured to structure.
-Always use solid copper wire under timer screw terminals ... stranded wire can come loose and cause fires.
-Keep enclosure door closed to prevent possible fire hazard from spreading.
-Keep insulator over screw terminals to prevent accidental electrocution hazard.
-Install enclosures away from hazards such as lawn mower or machinery.
-Install outdoor boxes in sheltered area if possible and 12" above anticipated snowfall.
-For safety, make sure Load is grounded correctly. People often forget to securely join the ground wires inside timer because wire sometimes gets a bit short. Buy extra length of wire from box store. Load must be grounded. Why you need ground wire
Use correct wire and breaker
Oversized is OK, undersized is hazard
Look at label on load to determind correct size wire and breaker
Watts divided by volts = amps
If Load is 120 volt, and watts is 1500 = 12.5 amps.
Next calculate 80% safe maximum. 20 amp breaker x .80 = 16 amps safe maximum
15 amp breaker x .80 = 12 amps safe maximum
The calculation shows that 4500 watt load requires 20 amp breaker and 12 gauge wire up to 150 feet.
Longer distance, use larger wire and breaker.
Buy from my affiliate links:
Southwire cable and tools
Resource:
Figure volts amps watts
T101B Wiring begins here
Applies to T101B with separate wiring terminals
T101B wiring
T101B timer / SPST / 40 amp/ 120V clock/ independent switch terminals control any voltage
120Volt clock motor
Buy:
T101B       120V SPST separate load terminals/ at Amazon
Resources:
T100 series sell sheet with model numbers and features
T101B manual/ pdf
You can accomplish same wiring using T104 timer & change clock motor
You can accomplish same wiring using T103 timer
T101B timer
T101B timer
Buy:
T101B       120V SPST separate load terminals/ at Amazon
You can accomplish same wiring using T104 timer & change clock motor
You can accomplish same wiring using T103 timer
T-101B clock motor 120 V
Buy:
WG1570 for 60 Hz 120 volt Amazon
T-101B change to 208-277
Change T101B timer into 240 Volt
Buy:
WG1573 for 60 Hz 208-277V
T-101B change to 480 Volts
Change clock motor to WG1573
Buy:
WG1576 for 60 Hz 480V at Amazon
Change clock motor voltage
Intermatic clock motor >>>>> Intermatic clock motor
T-101B change to 24 Volts
CW190-10 for 24 volt 60 Hz 24V at Intermatic

T-101B change from 60Hz to 50 Hz
WG1571 motor for 50 Hz 120Volt at Intermatic
Wiring for other T100 series timers
T101B Wiring: How to wire T101B timer
Applies to T101B with separate wiring terminals
T103 Wiring: How to wire T103 and T173 series timers
T104 Wiring: How to wire T104 timer
Applies to T103, T103R, T103P, T103M, T103PCD82, T173, T173R T173M  see all models
How to wire Intermatic T102: How to wire T102 and T172 series timers
How to wire Intermatic T105: How to wire T105 timer
Nema 1 indoor enclosure/ 
To convert to 208-277V operation, replace WG1570 clock motor with WG1573 clock motor
How to wire Intermatic T106 timer: How to wire T106 timer
Nema 3R indoor-outdoor enclosure
To convert to 120V operation, replace WG1573 clock motor with WG1570 clock motor
How to wire Intermatic pool timer: How to wire pool timers
Control centers:
Control centers: + manuals and parts

All control centers and parts
Intermatic/ Grasslin enclosures
Metal and plastic enclosures
Intermatic enclosures
Intermatic sprinkler timers and wiring Intermatic sprinkler timers
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
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
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)
ET series timers
           Intermatic ET279 timer    Et70215 timer
Timer modules/ 16 amp/ 12-240 volt
Timer modules/ 16 amp/ 12 to 240 volt
MIL72E timer     FM1-timer   MIL72A timer   CN101A timer wiring   Intermatic PB300      
Gas and electric water heaters Buy:
Industrial electric at Amazon

Industrial supplies at Amazon

Industrial and scientific Amazon
box timers Compare box timers

Compare ways to control Gas and Electric heaters
Intermatic control centers Control centers:
+ manuals and parts


All control centers and parts

Including Z-wave
programmable timer Compare programmable timers

Control water heater with programmable wall timer
Countdown timers Compare countdown timers

Control water heater with countdown timer
Buy from my affiliate links every time/ thanks:
Amazon
As an Amazon Associate I earn from qualifying purchases
Enter Amazon from any link on my site, fill cart with any item ... purchases pay small commission

E-mail: geno03245w@gmail.com
My response might end up in spam folder, check email folders
Waterheatertimer on Twitter
Message thru facebook