Intermatic ET series timers 

ET171 timer
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ET171 timer/ probably discontinued/ buy EH10 as substitute

7-day
20 set points: 10 ON and 10 OFF
30 amp
Buy different timer with 7 on- 7 off set points per week:
EH10     240Volt 7-day digital timer at Amazon
Resources
EH10 manual
EH10 sell sheet

Wiring diagrams: How to wire EH10

Resources for ET171:
ET171C manual
ET 170 series
ET170 series sell sheet

ET171 120Volt SPST (same wiring as ET100 shown below)
ET173 120Volt
ET174 240Volt SPDT (same wiring as ET104 shown below)
ET175 240Volt SPDT with NO NC contacts
ET279C replace with ET1717C
Crossover
ET171C replace with ET1705C
ET171CR (24 volt) replace with ET1705CR
ET173C replace with ET1725C
ET174C replace with ET1725C
ET175C replace with ET1715C
Intermatic ET100C timer
Replace with ET1100 series

Intermatic ET100C 24-hour programmable timer

Replaced with ET1105 timer (same wiring)
120Volt timer voltage 24-hour digital timer
AA backup battery
4 ON and 4 OFF set points
Inductive (motor) or incandescent or ballast loads up to 30A
Independent SPST relay to control any voltage load.
Consumes 3 Watts to operate timer
] 30 amp

Buy ET100:
ET100C 24-hour timer at Amazon
Buy different timer/ 7-day programmable with 7 on- 7 off:
EH10     120 Volt 7-day digital timer at Amazon
Resources
EH10 manual
EH10 sell sheet

Wiring diagrams: How to wire EH10


Resources for ET100C:
ET100 series timer ET101C, ET103C ET105C
ET100C manual
Convert ET 100 series to ET1100 series

ET100C wiring
See image of water heater circuit
ET103 timer manual
Intermatic ET100C timer

ET104C timer

Selectable voltage: default voltage set for 240Volts
30 amp timer
SPDT 6 terminal timer
30 amp
Typical 240Volt and 120Volt water heater circuits shown on right

Resources:
ET102C ET104C manual
ET101C ET103C ET105C manual
ET104 Manual
ET103 timer manual 
How to program ET104 timer

Convert ET100 series to ET1100 series
ET104 timer wiring for 240Volt
A battery lasts 3 years. Timer has 1 year limited warranty. Battery located under timer buttons.
EH10-EH40-ET100 series battery carriage pushes down and out to remove.

ET104 timer wiring for 120Volt


 Intermatic ET279 timer
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Intermatic ET279 timer

Model ET279C provides 10-ON 10 OFF operations or momentary contact closures of 1 to 8 seconds (ten each or any combination) for two independent circuits.
30 amp
ET279C replace with ET1717C

Resources:
ET279 manual
ET279 sell sheet

Steel outdoor box
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Plastic outdoor box w/ see thru door
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ET1100 Series 24-hour / 20 and 30 amp models/ 28 set points/ 120-208-240-277Volt jumper/ 1 or 2 channel/ 50-60 Hz/ programs held in memory with power loss

24 hour timer, 30 amp
AAA batteries
Arrives with default 120Volt, or select 208, 240, 277V/ 1 HP @ 120V, 1.5 Hp @ 208V, 2 Hp @ 240V
28 setpoints: 14 ON and 14 OFF
2 channel timer: 2 independent circuits possible
Some models, jumper configurable: 1 or 2 channel, pulse output
Arrives with default 120Volt, can change output to 208, 240, 277V
20-30 amp models/
aka Intermatic 109071 timer

Buy:
ET1105C               Steel indoor box/ 30 amp/ 24-hour/ SPST programmable/ at Amazon
ET1105CPD82      Plastic outdoor box w/ see thru door/ 30 amp
ET1105CR             Steel outdoor box/ 30 amp

ET1115C              Steel indoor box/ 20 amp/ 24 hour / SPDT programmable/ with NO NC contacts/ at Amazon
ET1115CPD82     Plastic outdoor box w/ see thru door/ 20 amp
ET1115CR            Steel outdoor box/ 20 amp

ET1125C              Steel indoor box/ 30 amp/ 24 hour/ DPST or 2xSPST / 1 or 2 channel/ at Amazon
ET1125CPD82     Plastic outdoor box w/ see thru door/ 30 amp
ET1125CR            Steel outdoor box/ 30 amp

Resources:
Sell sheet with model numbers and features
ET1100 Sell sheet with conversion number from ET100 series

ET1100 Series manual
ET1105 , ET1115, ET1125 same manual
How to wire ET series timers

Steel outdoor box


Plastic outdoor box w/ see thru door
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ET1700 Series/ 20 and 30 amp models/ 7-day 28 setpoints/ 120-208-240-277Volt/ jumper/ 1 or 2 channel/ 50-60 Hz/ programs held in memory with power outage

7-day electronic timer
28 setpoints: 14 ON and 14 OFF/ daylight savings time
ET1725 models, jumper configurable: 1 or 2 channel, pulse output
2 channel timer means 2 independent circuits can be operated with separate programs for each/ 1 channel means timer can operate 1 circuit with same program
Arrives with default 120Volt, or select 208, 240, 277V/ 1 HP @ 120V, 1.5 Hp @ 208V, 2 Hp @ 240V
20-30 amp models/ -40F to +155F
Two AAA batteries for back up
Buy:
ET1705C/            Steel indoor box/ 30 amp/ 7-day/ SPST programmable/ at Amazon
ET1705CPD82/   Plastic outdoor box w/ see-thru door/ 30 amp
ET1705CR/          Steel outdoor box/ 30 amp

ET1715C              Steel indoor box/ 20 amp/ 7-day/ SPDT programmable/ with NO NC contacts / at Amazon
ET1715CPD82     Plastic outdoor box w/ see thru door/ 20 amp
ET1715CR            Steel outdoor box/ 20 amp

ET1725C               Steel indoor box/ 30 amp / 7-day/ SPST or DPST/ 2 channel programmable or 1-channel or 2 second pulse/  at Amazon
ET1725CPD82      Plastic outdoor box w/ see thru door/ 30 amp
ET1725CR             Steel outdoor box/ 30 amp

Resources:
ET1700 series sell sheet with model numbers and features
ET1705C  manual
ET1715C manual
ET1725C manual
How to wire ET series timers
ET8015

ET8000 Series /7-day astronomic or programmable/ 1 or 2 channel/ 120-240-208-277Volt/ 1 and 2 channel models/ programs held in memory with power loss

7-day astronomic dawn-dusk timer/ or 28 ON and 28 OFF setpoints
2 channel timer means 2 independent circuits can be operated with separate programs for each/ 1 channel means timer can operate 1 circuit with same program
Sunset ON and programmed OFF options
Selectable voltage 120 thru 277
30 amp
Buy;
ET8015C/  steel indoor box/ 30 amp/ SPST / 1 channel/ at Amazon timer
ET8015CR/ steel outdoor box/ 30 amp


ET8115 / steel indoor box/ 20 amp/ SPDT with NO NC contacts/ 1 channel/ at Amazon
Intermatic ET8215 at Amazon timer
Resources:
ET 8000 series sell sheet with model numbers and features
ET8015C manual
ET8115C manual
ET8215C manual
How to wire ET series timers
ET7115 timer manual
ET715 timer manual
ET716 timer manual
ET718 timer manual
ET7215 timer manual
ET724 timer manual
ET728 timer
ET7415 timer manual
ET799 timer manual
Et70115 timer

ET70115 1-channel timer 365 day

Programmable or astronomic
NEMA 1 indoor enclosure
Nema 3 outdoor enclosure
7-3/4 x 5 x 3
20 amp rating each pole

Timer has Panasonic or Rayovac BR2325 lithium battery that lasts 8 years, and is located next to circuit board. pg 27 in manual.
Buy:
ET70115c at Amazon
BR2325 battery at Amazon
Resources:
Sell sheet
Et70115 manual
ET series buttons
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Et70215 timer

Et70215 2-channel timer 365 day

Programmable or astronomic
NEMA 1 indoor enclosure
Nema 3 outdoor enclosure
7-3/4 x 5 x 3
20 amp rating each pole
1 to 127 second pulse option

Timer has Panasonic or Rayovac BR2325 lithium battery that lasts 8 years, and is located next to circuit board. pg 27 in manual.
Buy:
Intermatic ET70215C 120-208-240-277V at Amazon
BR2325 battery at Amazon

Resources:
Sell sheet
ET70215 manual
Intermatic ET70215 wiring
Timer controlling two 120Volt loads
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ET70415 timer
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ET70415 4-channel timer 365 day

ET70815CR 8-channel timer 365 day

Programmable or astronomic
NEMA 3R indoor/outdoor enclosure
12-1/2 x 8-1/4 x 4"
20 amp rating each pole
Buy:
ET70415cr at Amazon
ET70418cr at Amazon
BR2325 battery at Amazon
Resources:
ET70415 manual
ET7018 8-channel manual
See wiring for ET70215 timer above, and then add 2 additional circuits
Example programming shows on page 17-18 of manual.
If you need more programming assistance, request form #158ET9311 from Intermatic
Intermatic ET9000 series timer
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USB connection

ET 90000 series/ SPST 120-277Volt/ 50-60 Hz/ 365 day/ 30 amp/ 1-16 channel/ programmable or astronomic dawn-dusk/ 4000 set points

4000 on-off events
20 amp NC -30 amp NO contact rating
350 amp maximum panel load > use contactors
3 year limited warranty covers product workmanship
1 2 4 8 and 12 and 16 channels
Minimum on-off 1 second.
Maximum on-off indefinite
Wire size: 20 gauge to 6 gauge
Except 6 gauge is rated for 60 amp, and timer is 20 amp
Buy:
At Amazon
ET90115C 1 channel / indoor box at Amazon
ET90115CR 1 channel / outdoor box at Amazon
ET90215C 2 channel/ indoor box at Amazon
ET90415CR 4 channel / outdoor box at Amazon
ET90815CR 8 channel / outdoor box at Amazon

Resources:
ET9000 instruction Manual
ET 90000 Sell sheet with wiring and box dimensions
ET 90000 sell sheet with features
Firmware update instructions for ET90000

Keypad


Intermatic ET90000 relay terminals
Dry NO NC relay terminals can control any voltage
Intermatic ET90000
Screen and data entry

Intermatic ET90000 timer
Input voltage detected automatically. No dip switches.
120 - 277 Volts.
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Intermatic ET9250 relay module
Additional relays can be added to some models
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Intermatic sprinkler timers and wiring/ 20 amp / 14 day skipper/ 120-240 volt

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/ 120-277 Volt

Resources:
Multi function timers and manuals
GM40 timer  Intermatic GM40AVE    Woods 59402 timer   Tork DTU water heater timer  

T1906-5  T1975-6 heavy duty 24 hour timers/ 20 amp/ 120-480 volt

Resources:
Multi function timers and manuals
Intermatic T1906 timers

24 hour timers and wiring/ 40 amp/ 120-480 volt

Resources:
T100 series timers and manuals
Intermatic T100 series timer
    Metal indoor box              Outdoor box           Plastic outdoor box     See thru outdoor     Mechanism     T170 w/ Day-skipper                       Parts & manuals

24 hour timers and wiring/ pool timer/ 40 amp

Resources:
T100 series timers and manuals
More pool timers
Intermatic pool timers and manuals

Tmer modules/ 16 amp/ 12-240 volt

Resources:
Tmer modules/ 16 amp/ 12 to 240 volt
MIL72E timer    FM1-timer   MIL72A timer      CN101A timer wiring        Intermatic PB300       
Gas and electric water heaters Support the economy:
Buy water heaters  from my associate links:

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

Resources:
How to install gas water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
Gas and electric water heaters Industrial electric at Amazon

Industrial supplies at Amazon

Industrial and scientific Amazon
Intermatic control centers Intermatic control centers:
+ manuals and parts


Including Z-wave
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