Waterheatertimer.org
is a self-help website
Figure Volts Amps and Watts for water heater Compare 16 ways to control water heater
Search waterheatertimer.org / all results
Search using Find button  

 Tweet button  

How to wire Intermatic ET series timer

These timers can be wired many different ways
Intermatic ET104C
Larger image
ET104C Manual

At Amazon
ET104C water heater timer

ET104C 240volts/ 1 load SPDT

ET104C has selectable voltage that is preset to 240Volts
Selectable voltage 120 208 240 277
Default voltage from factory is 240Volt

Same illustration applies to ET173 and ET174 7-day timers
If your timer has 4 terminals instead of 6, then same wiring applies, use diagram below

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
Intermatic ET104C

ET104C 240volts/ 1 load SPST


ET104 has 6 terminals, and ET102 has four terminals
ET104C and ET102 have selectable voltage that is preset to 240Volts
Intermatic ET104C ET104C-wiring for 120 Volts

ET104C 120volts/ 2 loads SPDT

ET104 has 6 terminals
How to wire to control 2 separate 120Volt loads

Factory default voltage is 240
Select voltage

ET series timers/ select voltage

Some timers have dip switches such as GM40.
Newest timers such as ET9000 automatically detect line voltage
Intermatic timers and manuals

ET104C timer arrives with selector positioned for 240 volts (as illustrated).
Selector position determines voltage for running clock, timer electronics, and magnetic switches.
The wiring terminals are dry and receive no power when power is applied to timer terminals 1 and 2.

To select 120Volt. Lift and move selector from 240V positon to 120Volt position, and push selector down.
ET104C Manual

Larger image

ET series/ select function

Some models offer multiple function
ET70000 and 90000 functions are programmed, and timer can perform multiple functions throughout week
Other ET models, such as ET1125 can be set to perform specific function, but timer must stay in that single function capacity until jumper is moved again.
Default setting is SIM for simultaneous. Both relays turn on-off at same time.
Other functions include IND so that timer is able to control two separate loads, each with separate programming.
Read manual

240Volt wires can be Black-White or Black-Red

Color code for wire
Select and install wire connectors
ET1125 wiring
Larger image

ET1125 wiring 2 independent loads IND

Maximum combined load 30 amps.
Control Two 120V-277V loads with Hot and Neutral
Control Two 208-240Volt loads with Hot Line1 and Hot Line2
Wire terminals without jumper from supply voltage to control any voltage with relays.
ET1125 manual

Timer is shipped default 240Volts.

For independent load operation (2 channel operation), move jumper from default SIM (simultaneous) to IND (independent.
ET1125 timer wiring

ET1125 wiring 2 independent loads IND

Maximum combined load 30 amps
ET1125 timer wiring

ET1125 wiring 2 independent loads IND

Maximum combined load 1 Hp
ET1125 timer wiring

ET1125 wiring 2 independent loads SIM

Both loads turn ON at same time
et1125 bell ringing

ET1125 bell ringing SIM

All bells ring at same time
Protram timer for Impulse or bell-ringing

3-phase timer

ET1125 controls 3-phase

ET1125 controls 480Volt load SIM

Use SIM or simultaneous, so both relays turn on-off at same time
Timer shipped default SIM setting
Change timer voltage selector to 277Volt.
ET1125 manual

For 3-phase 480V-277V:
Bring 480 power from 2 legs of 3-phase. One 480V Hot leg connects to terminal 2, with jumper between terminals 2 and 3..
Other 480V Hot leg connects to terminal 5.
Connect System Neutral to terminal 1
Configuration shown can control single-phase 480Volt 3-pole contactor coil, and 3-pole contactor can control any 3-phase load.
How to wire 3-phase timer
277 volt timer

ET1125 controls 277Volt load SIM

Use SIM or simultaneous, so both relays turn on-off at same time
Timer shipped default SIM setting
Change timer voltage selector to 277Volt.
ET1125 manual
Change t104 timer to ET1725
Larger image

Crossover wiring from T104 to ET1725

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.

Larger image
3-phase timer 277Volt

277 Volt timer

277 Volt 3-pole contactor

277V 480V 3 Phase service with system Neutral
Buy:
90 amp 277V coil 3-pole lug terminals
75 amp 277V coil 3-pole lug terminals
30 amp 277V coil 3-pole


ET series timer wiring
3-phase timer wiring
Intermatic GM40
Tork DTU40
GE 15207
Intermatic T104 and T174

Square D 277 Volt contactor at Amazon

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

Electricity leaves power plant Resource:
What is 3-phase electric: power plant to end user
See inside main breaker box
Resources:
Troubleshoot Gas valves with manuals
Icon gas valve

Install and troubleshoot garbage disposal Waste King disposal
Install point of use water heater

How to wire tankless electric
Point of use water heater

Anode rods anode rods
Recirculation system

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

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
How to install electric water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
Gas and electric water heaters Buy
Industrial electric


Industrial supplies

Tools and home improvement

Lab and scientific
Buy Tools
DEWALT
Black and Decker
Stanley
SKIL
Porter-Cable
Bosch
Roybi
SK tools

Dremel
Saws and saw blades
box timers Resource:
Compare box timers

Control water heater w/ Z-wave
Intermatic control centers Resource:
Control centers:
+ manuals and parts


All control centers and parts

Including Z-wave
programmable timer Resource:
Compare programmable timers
Compare countdown timers
Delay timers
Modules

Din rail
Twin
Woods

Control water heater with programmable wall timer

hats
hats
Buy
Roxy trucker hat
Cadet hat
Cowboy hat
MG mens trucker hat
Kentucky derby hat
Farm girls-n-boys hat
Enter Amazon from my links
Amazon

E-mail: geno03245w@gmail.com
My response might end up in spam folder, check email folders
Privacy policy
Search
Author page/ My Books