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120v 240v generator wiring diagram

I wired the generator to a two pole breaker box for two 120 volt circuits. I get 116 volt on each side at the box from the generator. Installed breakers and the first one register 116 volt (no wiring connected yet. Turn the second breaker on and voltage on the first drops to about 105 and the other one register about 135 volts (again no wiring attached. Have no clue where to go. All connections are good an tight. Help111

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Sorry we do not have this.

Posted on Jul 10, 2017

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Posted on Jan 02, 2017

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SOURCE: tried replacing a 2 pole

You are correct. Try replacing the single pole breakers with thinner space saver breakers to get more space in the pannel.

Posted on Oct 18, 2010

  • 3287 Answers

SOURCE: one half of a 240

The breaker must engage TWO bus bars in the panel, in addition to the a neutral connection. If the breaker is aligned to engage only one of the bus bars, only one of the terminals will be powered at the breaker terminal screw (most likely the top).

Some electrical panels have covers that have numbers and spaces stamped for circuit breakers at the bottom; when in reality, there is no bus bar to connect. Make sure you are not attempting to install into a space that lacks both bus bars.

If unable to get 240 volts out of the breaker without the load wires connected, there may be an issue internally with it. If after connecting the load wires, one side fails again, it may be detecting a ground fault or an over current situation but due to an internal failure is unable to trip both poles of the breaker. This breaker should be replaced.

Posted on Jun 02, 2011

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5000 watt inverter schematics circuit


If you have (90) 50w lamps = 4500 watts total. Assuming a 120/240 panel, if you put 1/2 on one "side" of the panel and the other 1/2 on the other "side" of the panel, that would be 2250 watts on each half. The generator should be rated *at least* 125% of the load; 4500w x 1.25 = 5625W. Using a 4500W generator on this load will cause it to overheat and shorten its life as it is running at 100% of capacity all the time..

One half of the panel is 120V to neutral, and the other is 120V to neutral - or 240V between both circuit breaker terminals. Ohms law for DC circuits and purely resistive AC circuits says Volts x Amps = Watts; or Watts / Volts = Amps. So, 2250W / 120V = 18.75A on each pole of a 2 pole circuit breaker that feeds the sub panel. A #12 copper wire is rated for 20 amps; but as per National Electrical Code - must be de-rated to 80% of rating which means it is good up to 16 amps maximum. A #10 copper wire is rated for 30 amps, but it too must be derated to 80%, making it good for 24 amps maximum. So, if you are going to feed a sub panel supplying (90) 50watt lamps, you will need to run a #10/3 copper cable from a two pole 30 amp circuit breaker at the generator to a 120/240 volt "main lug only" sub panel rated for at least 30 amps.

Divide your load evenly across the sub panel - (4) 15 amps circuits via (2) two pole 15 amp circuit breakers on each "side" of the panel if you run (2) 14/3 cables out to the lights - or (4) single pole 15 amp circuit breakers if you run (4) 14/2 cables out to the lights. No circuit breaker terminal should have more than 23 lamps that means you have (2) w/ 22 lamps and (2) with 23 lamps. The circuit w/ 23 lamps will draw 23 lamps x 50w = 1150W. 1150W / 120V = 9.6A. The 22 lamp load will be 22 x 50w = 1100W. 110W / 120V = 9.2A. Which is well within the 12A maximum allowed (after derating as required by code) by a #14 copper wire rated for 15A.

Good luck!

Mar 10, 2014 | Electrical Supplies

1 Answer

How do I wire a Woods 59402 timer 240v input running two 120v outlets


Woods 59402 timer wires identical to Intermatic GM40, with same ratings and dip-switch settings.
http://waterheatertimer.org/How-to-wire-GM40-timer.html

Here is specific wiring diagram per your request, showing 240Volt input controlling two 120Volt outlets.
http://waterheatertimer.org/images/GM40-wiring-240v-120-volt-5.jpg
http://waterheatertimer.org/See-inside-main-breaker-box.html

Keep in mind that with 240Volt, both hot wires coming from breaker box carry 120Volt each, with 240Volt potential across both hot leads.
Each 120Volt Hot from breaker box, also carries 120Volt potential to Neutral or ground wire.
So the 240Volt wires from breaker box can supply the Hot for a 240Volt circuit, but the circuit must also have a neutral wire to complete 120Volt circuit.

Be mindful that timer is not 2-channel, so both outlets are controlled by same timing schedule.
If you want two different schedules for the outlets, then buy a 2-channel timer like Intermatic ET1125. Wiring for ET series remains similar to illustration link above.

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I have a electric dryer Model WED5810SW0 THAT I WAS TOLD I COULD CONVERT TO 120V from 240v is this true and if so how do i do this?


If you consider doing this the first thing is SHUT THE MAIN BREAKER OFF. Use an auxiliary light source to see when working in a dead panel. Always keep in mind an ARC FLASH ACROSS HOT MAINS HAS ENOUGH HEAT TO PEAL THE SKIN OFF OF YOU. Before an explanation of how to do it you should keep in mind that this is for a single receptacle only. If any other receptacles are on the same circuit they will also be changed to 240 volt receptacles and if you plug any 120 volt device into them, the 120 volt device will be destroyed. That said OK, any 120 volt outlet can be changed to 240 volt by removing the 120 volt circuits neutral, re identifying the white wire with red or black phase tape and connecting it to a new 2 pole 15 amp breaker. The maximum that this circuit will now load up to is, on #14 wire at 80% = 12 amps at 240 volts. The 120V receptacle must be changed to a 15A - 240V receptacle so that 120 volt devices can not be plugged into it. Never use 2 single pole breakers together because code requires that on a fault trip both legs of the 240V circuit must be disconnected simultaneously. OR USED A Quick 220 Voltage Converting Power Supply
Voltage converter buying guide. Voltage Transformer Buying guide.Voltage converters also known as voltage transformers are devices that convert foreign electricity to power devices from different parts of the world. A step down voltage converter is a 220 to 110 volts converter. A step up converter is a 110 volts to 220 volts converter. Our 2-way converters are voltage transformers that convert power from both 220 to 110 volts and 110 to 220 volts. They also work with 100 volts, 110 volts, 120 volts, 220 volts and 240 volts. This model is a 2 way voltage converter / voltage transformer available in many different sizes including 100 watts, 200 watts, 300 watts, 500 watts, 750 watts, 1000 watts, 1500 watts, 2000 watts, 3000 watts and 5000 watts.

Sep 07, 2011 | Whirlpool Dryers

1 Answer

I'm confused about how to properly hook the wiring to the product below. Specifically where does the "neutral" wire attach. I have it all hooked up, but I'm not getting the full 220...


Your 240V wiring is not described clearly, and it sounds like you are confused about 240Volt circuits.
You posted under T104R indoor-outdoor 240volt timer:
http://waterheatertimer.org/images/T-104-control-240V-Load4-35.jpg

Typically a 240Volt cable is 2-wire with ground, and does not have a 'neutral'
A neutral is not necessary to complete 240V circuit.
If your 240Volt cable is a 3-wire with ground, then the neutral connects to terminal A on timer.
Open following links for specific T104 wiring diagrams plus illustration of 2-wire and 3-wire cables, and illustrations and explanation of difference between 120V and 240V circuits:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
http://waterheatertimer.org/images/wire-ga-250.jpg
http://waterheatertimer.org/B220C.html

If you have 240Volt cable, then do not move clock motor wires.
The clock motor wires connect to terminals 1 and 3.
240V power from circuit breaker connects to same terminals.
Load wires connect to terminals 2 and 4.

If you are not getting 240V across terminals 1 and 3, then check circuit breaker.
240Volt circuit breaker can be tripped off on one leg, or bad on one side so you get 120V on one leg at timer, and then clock motor does not rotate dial.
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html

Jul 03, 2011 | Intermatic T104R 208-277Volt 40-amp Timer...

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I have the c8866 cycle timer I want hook it up to a low presure pump switch. from the panel I have 10- 2 w/ ground this is 220. My question is. Is the ground my nuetral and if so is this also ground? the...


You have 220Volts (same as 240V), then that circuit does not need a neutral.
All household single phase voltage requires two wires to complete the circuit.
With 120V, you have 1 hot wire and 1 neutral wire.
With 240, you have 2 hot wires, and these hot wires are called 'out of phase' since each comes from separate side of breaker box.
Notice that your 220V 10-2 wire goes back to a double breaker. This double breaker snaps over two different busbars. The breaker pulls 2 out of phase 120Volt lines, and when testing voltage across those two out of phase 120V wires, you get 240V potential.
The ground wire is redundant safety in both 120 or 240 Volt circuits, and is not necessary for either 120 or 240 to operate.
http://waterheatertimer.org/240-v-water-heater-circuit.html#120-240

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1 Answer

Can a 240 volt outlet be ran off this breaker and can a 240 volt electric baseboard heater be wired to it or should i use double pole breaker?


You need 240 breaker:
Notice that your 240V breaker is twice as wide as regular 120V breaker.
Notice that both switches are tied together on 240V breaker, making this a double-pole breaker.
For more information about breakers and 120-240V circuits:
http://waterheatertimer.org/See-inside-main-breaker-box.html
http://waterheatertimer.org/B220C.html
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1 Answer

How do I wire an intermatic t-103 timer switch


The T-103 has a 120Volt clock motor

From there, the wiring can go two directions depending on your Load voltage (load is the fan, light or motor that timer turns on-off)

Here is a link that shows exact wiring:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T103

When wiring the T-103, steps 1-2-3 are true for 120V or 240V installation:
1) A white Neutral wire is always connected to terminal A (Neutral wire connects to Neutral busbar in breaker box)
2) A black Hot wire is always connected to terminal 1 >> this hot wire can come from 120V or 240V breaker
3) Black wire going to Load (fan, light, motor) is always connected to terminal 2
The following step is true for 120V Load
4) if Load is 120V, then white wire from Load connects to terminal A
The following steps are true for 240V Load
5) Only the neutral wire connects to terminal A as described in (1
6) The second Black hot from breaker box (240V has 2 hot wires) connects to terminal 3
7) The second White going to Load connects to terminal 4

Here are 2 more links that show how 120V and 240V circuits are wired
http://waterheatertimer.org/See-inside-main-breaker-box.html
http://waterheatertimer.org/B220C.html

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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

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I am trying to connect my new pool motor. I have 3 wires coming out of the box. a black one 120v a white one 120v and a copper (ground). How do I test if it has 240v? How can I connect the motor so works....


Most probable cause is that you have the black and white on the same phase, and that's why you have 120 volts from black to ground and from white to ground, but 0 across black and white. If the motor ran on 120 volts, why are you connecting it to 240?

In any event, in order to get 240 volts, move the white to a circuit breaker that is directly above or below the breaker that feed the black wire. You are supposed to use a 2 pole breaker for 240 volts anyway

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2 Answers

I have 2-240V (4.2V) basebaord heaters, Need Wiring Diagram


you get 120V from any phase (black OR red) to neutral
you get 240V from phase to phase (between black and red) and in this scenario you don't need the white wire.
So for you, connect the black to 1 pole of the breaker and the red to the other pole, connect the green wire to the ground strip and you are done.
A white wire is NEVER connected to a circuit breaker anyway, it is a grounded wire, it would be like connecting a green wire to a black wire, bad idea.
the National electrical code specifies red and black wire color for 240VAC circuits.
As Ask Hank mentionned, nothing wrong with 10/3 wire.

Mar 22, 2009 | Fahrenheat Electric Hydronic Baseboard...

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