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All Intermatic timers and manuals

Intermatic ET series timers with dip switches

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

Replace with ET1100 series

See image of water heater circuitIntermatic 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

ET103 timer manual

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
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.

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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

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

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Timer controlling two 120Volt loads
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ET70415 4-channel timer 365 day

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

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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 Intermatic 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 Features shown at Intermatic Accessories at Intermatic	Keypad
	Dry NO NC relay terminals can control any voltage
Screen and data entry Input voltage detected automatically. No dip switches. 120 - 277 Volts. Larger image	Additional relays can be added to some models Larger image Accessories at Intermatic

Intermatic sprinkler timers and wiring/ 20 amp / 14 day skipper/ 120-240 volt	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 Multi function timers and manuals
T1906-5 T1975-6 heavy duty 24 hour timers/ 20 amp/ 120-480 volt Multi function timers and manuals
24 hour timers and wiring/ 40 amp/ 120-480 volt T100 series timers and manuals	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 T100 series timers and manuals More pool timers
Tmer modules/ 16 amp/ 12-240 volt Tmer modules/ 16 amp/ 12 to 240 volt

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Point of use water heaters

Resources:
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How to replace water heater element

How to wire tankless electric

Install point of use water heater

Contactors/ relays

Type 1 and type 2 surge protection

Programmable timers

Woods timers

Anode rods

Recirculation system

Tankless recirculation

Install and troubleshoot garbage disposal

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Intermatic ET series timers with dip switches

ET171 timer/ probably discontinued/ buy EH10 as substitute

See image of water heater circuitIntermatic ET100C 24-hour programmable timer

ET104C timer

Intermatic ET279 timer

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

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

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

ET70115 1-channel timer 365 day

Et70215 2-channel timer 365 day

ET70415 4-channel timer 365 day

ET70815CR 8-channel timer 365 day

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

Intermatic sprinkler timers and wiring/ 20 amp / 14 day skipper/ 120-240 volt

Multi-function timers and wiring 40 amp/ 120-277 Volt

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

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

24 hour timers and wiring/ pool timer/ 40 amp

Tmer modules/ 16 amp/ 12-240 volt