Question about Intermatic INC ET104C 24 HOUR ELECTRONIC TIME SWITCH

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I would like to install this timer to my hot water heater which runs off a 2 pole,30 amp breaker.The wire is black,white and ground.I believe the black and white are hot and should be connected from the breaker to line 1 and line 2 in the timer.The black and white from the timer are to the heater (load) and should be connected to line 4 and line 6. I am familiar with the grounding.Is this correct for this unit?

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Below is a link to download the manual (in English) for your timer. Pay particular attention to figure 5.

Download manual here

If you have found this solution to be helpful, then please take a moment to rate it.

Posted on Jun 02, 2010

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WH40 water heater timer: Does black wire from service box go to terminal #1 and black wire to water heater to terminal #2? Does neutral (white) from service box go to terminal #3 and neutral (white) to...


WH40 is 240Volt timer.
WH40 will not work with 120V circuit.

See WH40 wiring illustration at following link:
http://waterheatertimer.org/How-to-wire-EH40-hot-water-heater-timer.html

There are two hot wires in 240V circuit because every circuit requires two wires to complete the circuit.
Hot wires from breaker connect to terminal 1 and 3.
Notice that small white wires are also connected to terminals 1 and 3.
Small white wires power clock motor located on back of mechanism, so this says power from breaker box must arrive on terminals 1 and 3. This insures that clock motor runs continuously.
If clock motor only runs when manual override switch is clicked ON, then your Hot and Load wires are reversed.

Bare ground wire connects to green ground screw.
Wires going to Load (water heater) connect to terminals 2 and 4.

FYI: Terminal A is not used unless circuit also has a Neutral wire,
See basic water heater circuit Diagram #2:
http://waterheatertimer.org/240-v-water-heater-circuit.html

Terminal A is also used if you want to convert WH40 to 120V timer by replacing 240V clock with 120V clock.
How to convert Intermatic 240V timer to 120V timer
http://www.fixya.com/support/t7353947-intermatic_timer_wg

Dec 24, 2010 | Electric Intermatic Inc Wh40 Water Heater...

1 Answer

We just installed a brand new Reliance electric water heater and there is no hot water or power.....tried the breaker.....help! Please!


what knowledge of electricity do you have? a hot water heater requires a 2 pole feed meaning you need a 3 wire 30 amp rated wire and it has to be on a 2 pole 30 amp breaker. first off do you have that currently installed?

Dec 18, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

Triing to install intermatic t103 please help. Source is 3 wire 110v want to run 3 blower 110v 9.5 amps each off the t103 timer. Don't have 220v in house just 110v. I need a very simple wiring diagram I...


T103 has 120Volt clock motor, so we can wire this timer.

T103 timer is rated for 30 amps and 2horsepower and your blowers use 28 amps.
So we're getting close to max on the timer. Hopefully blowers won't all be started at one time since motors draw maximum amperage when they start.
However, you need 30 amp breaker and orange 10 gauge wire for that much amperage >> unless only one blower is turned ON at any given time.
Always match wire size, amperage of breaker and amperage of Load or it will trip the breaker.
If you put 30 amp breaker on size 10 wire it is good. But 30 amp breaker on smaller size 14 or 12 gauge wire is fire hazard.
http://waterheatertimer.org/Color-codewire.html
Add a comment at any time, and I will respond

Look at the basics:
You have 2 cables.
One cable comes from breaker box.
Other cable goes to three 120V plugs (120V is same as 110V).

Each cable has black-wire, white-wire and bare-copper-ground-wire.

How to wire the timer.
Timer has 5 terminals: A 1 2 3 4

A) Cable from breaker box:
White wire from breaker connects to terminal A
Black-wire from breaker connects to terminal 1

B) Cable going to 3 plugs
Black wire to plugs connects to terminal 2
White wire to plugs connects to terminal A
Ground wires connect to green ground screw.

Terminals 3 and 4 are not used in this case.
Here is a wiring diagram that shows 120Volt from breaker box and 120Volt going to Load
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T103

Nov 27, 2010 | Intermatic T103 Indoor 120-Volt 40-amp...

2 Answers

Im installing a TORK 1103.. Im hooking this timer up to 4 outlets.. I have a black, a white, a red and a copper wire.. my problem is I have to turn the timer on and off manually.. The clock is not...


Tork 1103 is mechanical timer with 125V 3 watt clock motor
Dial on front face rotates when clock has voltage
Dark and light colored pins connected to dial, and turn timer on and off
There is removable brass bar that connects poles L and 1

You have 4 wires:
Red >>> I'm not sure about this wire, is this Hot wire coming from tandem breaker?
Black >>> this is Hot wire coming from tandem breaker
White >>> this is Neutral wire
Bare ground

Test wires:
Please test Black and Red to bare ground to see if these are both Hot
Test Hots to white to confirm this is Neutral
Solution ASSUMES black and red are both Hot, and white is Neutral

You have 2 problems:
Prob 1) Clock does not rotate dial: so clock is bad -or- clock not wired correctly
Prob 2) You are able to control 4 plugs using manual override, which means load wires are correct
However, you want to wire timer 'without red wire' (which is confusing, since red wires are connected to outlets)

ef19106.jpg
Solution Prob 1:
1) The diagram show the N or Neutral wire is connected to Unmarked pole on timer
2) Black Hot has to be connected to pole L
3) Unmarked pole and pole L must be wired with 120V as shown before dial will rotate
4) If wiring is correct and dial does not rotate, then clock motor is bad
5) If dial rotates, check outer rim of dial to see if you have dark and light pins for on-off functions
6) Notice that all the Neutrals connect on Unmarked pole

Solution Prob2:
Are you saying that the household wiring extends beyond the 4 plugs, so when you turn off the 4 plugs, it also turns off more plugs and switches farther down the line? If so, you need to wire plugs with separate hot wire.
Let me review features on timer which might help:
1) There is removable brass bar between poles L and 1
2) If brass bar is removed, then you need Hot wires on both L and 1... but you can jumper between L and 1 with short black wire
3) If brass bar is there, then one Hot connected to either L or 1 will power both clock and load.
4) Timer is DPST double pole single throw ... so you can control 2 different loads ... one load connects to Unmarked pole and pole X ... another load connects to Unmarked pole and pole 2

If brass bar is removed:
Jumper between poles L and 1 ... so only one Hot wire is used on your timer.

Below shows jumper on poles L & 1: hot to load is on pole 2

743d806.jpg

Oct 06, 2010 | TORK Variable Cycling Timer 8601

1 Answer

Hello can i get the instuctions for tork timer model 1191 please?


According to Intermatic conversion chart, Tork 1191 is same as Tork 1101.

Link to 1101 .pdf
Link to Tork manuals

Tork 1101 is dial-type mechanical timer. Dark pins turn OFF. Light pins turn ON.

Clock motor is 120V
Hot black wire from breaker connects to pole L
Neutral white wire from breaker connects to pole X
Removable bridge connects poles L &1 together
If bridge is gone, Hot from breaker must also connect to pole 1
Black wire to Load connects to pole 2
White wire to Load connects to pole X

Timer can control 240V Load if removable bridge between poles L and 1 is taken out.
Timer clock is still 120V: so 120V Hot still connects to pole L and neutral from breaker connect to poles X
240 V circuit has two hot lines: Hot line 1 and Hot line 2
240 volt Hot line 1 from breaker connects to pole 1
240 volt Hot line 1 to load connects to pole 2
240V Hot line 2 goes directly to Load and does not connect to any pole

Oct 04, 2010 | Hardware & Accessories

1 Answer

JUST PURCHASED A RELIENCE 602 ELECTRIC HOT WATER HEATER 50 GALLONS TO INSTALL IN MY HOME WHAT GAUGE WIRE AND BREAKER DO I NEED TO INSTALL


The hot water heater should come with an amperage rating on it.
They vary from 30 to 40 amps, and then 10 or 8 gauge wire.
(All hot water heaters are 220 volt.)
I believe the 602 uses a 4500 watt element.
Divide 4500 by 220, and you get about 20 amps.

If you want to be on the safe side, you go with the heavier wire, 8 gauge, and then go with the smaller breaker that is more easily tripped, 30 amps. That way you can switch to a 40 amp breaker in the future, without having to change the wiring. The goal is to always make sure the wire is rated higher than the breaker. You want you breaker to trip before your wire melts.
But technically a 30 amp breaker and 10 gauge wire would be fine for this heater.

And since it is 220 volt, you will always use a double breaker.
That is because 220 volt appliances don't use a ground, but instead use the potential between to power wires that are 180 degrees out of phase. AC always does a sine wave, and the 2 power leads coming into the house are always out of phase. When one is 110 volts up, the other is down. So the total between them is 220 volts. And the way they intentionally zigzag the breaker box, 2 breakers next to each other always are on opposite power lines.

If you have any doubts at all about 220 and water heater wiring, please ask again. Wiring is not hard, but you have to understand what you are doing, or else you can cause serious consequences.
For example, if you use wire nuts or wrap wire around a screw, you need to always turn them clockwise, so they pull the wire when tightened.
You also always need to ground the chassis with a green safety wire.
Since a 220 hot water heater uses 2 power wires and a safety ground, the white wire should be striped with a permanent marker, so that it is not confused with the white neutral wire of a 110 volt appliance.

Aug 19, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

Gfi Breaker 2 Pole 20 Amp: installed 20 amp dbl pole breaker to hot tub. Keep...


When Working with Household Electricity you want to always keep in mind that the BLACK wire ALWAYS carries DEATH. What I mean by this is that working with a Single Phase Circuit (one that uses 120VAC) the only wire that should be carrying a voltage is the BLACK one, the other 2 wires (typically the White Neutral and Green Ground) should both be electrically connected to Earth Ground (usually by being attached to your water pipe.)

It is also possible that your hot tub may use more than 20 Amps.

May 17, 2010 | Cutler Hammer Gfi Breaker 2 Pole 20 Amp

1 Answer

HOW TO WIRE


A single pole ground fault breaker has a screw terminal on one side for the black wire to the ciorcuit, a white curly pigtail that goes to the panel neutral/ground bar, and a screw terminal near the white wire for the white neutral wire from the circuit.

A 2 pole GFI breaker is similar, But it has another screw terminal for the other hot wire in the circuit.
For a 220 volt, 2 pole, GFI protected circuit, you need to run a 4 wire cable. black, red, white, green.

Please Vote !!

Apr 13, 2010 | Siemens 50 Amp Ground Fault Circuit...

1 Answer

Hooking up a Hot tub


Everything above tells me this is 120V unit...if thats the case a single pole breaker is sufficient. Also by what you have written, a 15 amp breaker should suffice.

Jun 22, 2009 | Spa Parts Plus GFCI, Circuit Breaker, 30...

1 Answer

Wiring a wh40 intermatic timer to a sears hot water heater


Shut off breaker to you water heater. STILL TEST FOR VOLTAGE BEFORE YOU TOUCH ANY WIRING. The 3 wire that go to you water heater disconnect them. You are going to install them to your WH 40 timer.
The wires that you disconnected will now go to terminals: Black to Terminal 1 & White To Terminal 3, The Ground copper wire will go to the ground terminal should be a green screw.
You will have to buy some 10/2 wiring to go from your timer to your water heater. You can buy it by the foot at Lowes. Figure how much you will need.
With the new 10/2 wire install the Black to terminal 2 & White To Terminal 4, the ground wire will go to the ground screw with the other ground wire.
Wiring that went to terminals 2 & 4 will be installed to you water heater, the same way when you disconnected them. Set your timer clock and your done. Turn breaker back on!


Dec 28, 2008 | Intermatic WH40 - Water Heater Time Switch...

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