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How do you wire a 220 volt switch? - Pool & Spa

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LINE goes to the top two screws (one on either side), LOAD go to the bottom two screws ... ground to the switch frame and ot the box, if metal. LINE is from the panel; LOAD is to the motor.

Posted on May 16, 2010

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How to wire a 220 volt switch


Turn off the main breaker controlling the power to the home. This will ensure that the wires at the 220-volt switch are not powered before working on them
Remove the cover from the old 220-volt switch with your straight screwdriver. Also, remove the screws that are holding the switch into the box. Pull the switch and wires out of the box so that the connections are accessible.
Identify the two sets of wires in the switch box, a red and a black pair, in the same conduit or insulated sheath. You should be able to see which wires are going to the device, or load. The line side is the other set of wires coming from the breaker.
Loosen the screws that hold the wires onto the switch. Pull all of the wires off of the old switch. Inspect the new 220-volt switch and identify the connection screws marked line and load.
Strip 3/4-inch of insulation from the ends of all four wires if they aren't already. Curl the tips of the stripped wires. Wrap the curled ends clockwise around the screws so that tightening the screw makes the wires wrap tighter.
Connect the black and red hot wires, or line, to the side of the switch marked "Line," usually the darker set of screws. Connect the two wires that are going to the device, or load, to the two screws marked as "Load" on the switch, usually the lighter colored screws on the switch.
Connect the bare ground wire, if there is one, to the green grounding screw on the switch. Push the wires and switch into the electrical box. Install the two screws that hold the switch into the box. Replace the switch cover and turn the main breaker back on.

Read more : http://www.ehow.com/how_8270481_hook-up-220volt-switch.html

Dec 13, 2014 | Electrical Supplies

1 Answer

Free wiring schematics


You didn't say what type compressor you have and didn't say what voltage.
A 220 volt compressor should use a double pole switch .
A 120 volt compressor only needs a single pole switch'
how to wire pressure switch for compressor YouTube

Aug 24, 2014 | Air Tools & Compressors

1 Answer

Wire 110 to 220


If you have a 110 volt appliance, all switches , wiring and components are made especially to handle that voltage. If you feed 220 to 240 volts into it, most certainly the machine will be unsafe and likely fail in a very short time. Purchase a step down transformer to reduce your supply voltage to 110. Most good electrical parts stores should be able to supply this.

Jun 26, 2014 | Craftsman Air Tools & Compressors

1 Answer

Single phase motor 220 convert to110v; do you have switch wire inside the motor


There should be a label showing the change, one wire gets switched over to a different screw, all motors are different, but all basically the same, some will not switch. It would be just as easy to run a new line to your motor and it will be right, single circuit, 220 volt,?amp, no worries., Your motor as is will not run in 110 volt mode at all. Hope this helps.

Feb 26, 2012 | Delta Table Saw Tool Base 50279 Band Saw...

1 Answer

I recently purchased a Delta 50-760 Dust Collector and was told I could convert the motor to 220 volt. I presently have a 220 volt saw and wanted to run them both on 220 so I looked at the book and it said...


I am currently in the process of doing the same thing. Look at the inside cover of the switch case. This is where the capacitor is housed and is attached to the motor. On the inside cover there is a wire schematic. Not a very good one. I have yet to fully trace out the current wire connections. Don't forget to change your plug. You do not need to replace the switch, just rewire input power to the motor.

Jan 13, 2011 | Delta 50 - 760 1.5HP Dust Collector

1 Answer

Old electrical box has 3 black wires. new device has 4 colored wires (white, red, green-ground, black - hot), the box does not have a ground wire (that I can see) and the old device only had three wires. ...


Early installations grounded the neutral line at the transformer, but did not bring in a direct ground wire as required for modern installations. White is neutral and should be connected back to the transformer secondary center tap. You will need to drive an 8-foot grounding rod near the panel and bring the ground connection into the box grounding bar (tied directly to the box as opposed to the neutral bar which is insulated from the box). Red and black wires are for 220 volt connections back to the transformer and feed each breaker on that particular rail with 110 volts. Any dual 220 volt breaker will contact both vertical rails. Each light and outlet in the house should have a ground connection, a neutral connection, and a 110 volt connection. Always place a switch to interrupt the 110 volt connection, not the neutral connection. You will likely need to measure the voltage across the suspected two hot wires to confirm the incoming 220 volt lines. Hope this helps!

Dec 27, 2010 | Garden

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

2 Answers

Wirng connecions for 110v pentair pool motor???


There shopuld be a diagram on the nameplate of the motor, or on the cover for the wiring compartment, or there is some stamped indication at the wiring lugs that tell you where to put your feed and what position the internal wires are to be in or the jumper .. for 110 volts or 220 volts.

May 29, 2010 | Pentair 3hp Whisperflo Pool Pump In -...

2 Answers

What size amp switch do I need.


NO! Use a switch rated higher in amps and equal to or higher in voltage relative to the breaker rating. Use a 40 or 60 amp switch rated a minimum 220 volts.

Feb 26, 2009 | Connecticut Electric 40 Amp 2 Pole Circuit...

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