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Utilitec |
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ST01C |
ETW350 |
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Water heater |
GE |
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Hagar |
Power pack |
Sylvania |
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How
to wire Intermatic ET
series timer These timers can be
wired many different ways
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![]() Larger image ET104C Manual At Amazon |
Fig 1![]() |
ET104C 24-hour timer Wired for 240 Volt ET104 24-hour timer with 4-ON and 4-OFF per day Buy ET1100 series for 24-hour 14-ON and 14-OFF per day ET104C has selectable voltage that is preset to 240Volts Selectable voltage 120 208 240 277 Same illustration applies to ET173 and ET174 7-day timers |
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Fig 2![]() |
ET104C or ET102 24-hour timers Wired for 120 or 240Volts ET104 has 6 terminals, and ET102 has four terminals ET104C and ET102 have selectable voltage that is preset to 240Volts |
| ET 170 series manual 7 day programmable | Read manual to set jumpers for selectable voltage Selectable voltage 120 208 240 277 | Wiring ET173C and ET174C have 6 terminals and wire same as Fig 1 shown above ET175C has 5 terminals and wires same as Fig 6 shown below |
| ET270 series manual 7 day programmable 2 independent outlets | 120Volt timer 2 channel timer with selectable voltage Can operate 2 Loads with different schedule for each Load Maintained or momentary bell-ringing contacts | Wiring Read manual for specific wiring options Wiring is similar to diagrams shown here but the 2-channel option complicates summary drawings. |
| ET1100 series manual 24 hour 14-ON and 14-OFF | Selectable voltage 120 208 240 277 Read manual for PUL and SIM jumper 2-second pulse for mechanically held contactor = PUL Multiple Load simultaneously = SIM Independent Loads = IND (ET1125 only) | Wiring ET1105 has 4 terminals and is wired like Fig shown above ET1115 has NO and NC terminals and is wired like Fig 6 shown below ET1125 has 6 terminals and is wired like Fig 1 shown above |
| ET 8000 series manual Astromic dawn-dusk timer is not necessarily best choice for water heater timer | Selectable voltage 120 208 240 277 | Wiring ET8015 has 4 terminals and wire same as ET102 Fig 2 shown above ET8215 ET has 6 terminals and wire same as Fig 1 shown above ET8115 has NO NC terminals same as Fig 6 shown below Many other wiring variations are possible |
Fig 6![]() |
ET7015 7-day timer Five-terminal timer wired for 240 Volts Selectable voltage 120 208 240 277 What do NO NC terminals mean? NO NC terminals explained: NO terminal is Normally Open, this terminal receives power ONLY when timer turns on NC terminal is Normally Closed, this terminal receives power and is on at all times EXCEPT when timer turns on, and then the NC turns off. |
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![]() Intermatic 70815-71615 Manual | 24 volt ET70815CR24 and ET71615CR24 Or selectable voltage ET70815CR and ET71615CR. 4 channel ET70615 or 8 channel ET70815. 24-Hour, 7-day, 365-day optional pulse, fixed switch, astronomic, interval, short-duration, timer with 8-year battery, with isolated NO and NC terminals that allow switching any voltage no matter which timer power voltage is selected. Each channel can have different timing schedule. Each channel can control any voltage, and voltage can be different for each channel. Replaceable logic module | Wiring Read manual for specific wiring options. Wiring is similar to diagrams shown here but the 2-channel option complicates summary drawings. |
| ET70815CR ET70815CR24 | Intermatic-et71615cr | |
| Other ET timers. ET series plug-in type timers by UPM Paragon ET series Grasslin ET616 | ||
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