Question about Rotary Pass & Seymour / Legrand 90603 600W Incandescent 3-Way Preset On/Off

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Installing a 3 way rotary dimmer

The dimmer instructions say to connect the red wire to the common but this dimmer has 2 red wires . what do i do?

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You should have just two wires for dimmer.
One goes to the black going to the light.
The other goes to the power coming in.
If you took off regular switch, Just disconnect the wires and put back the same as it was.,

Posted on Nov 30, 2008

  • Joseph Lillie
    Joseph Lillie Nov 30, 2008

    I am sorry you said three way, Just caught it. How many wires does the dimmer have and what colors are they. What did you disconnect. Sorry for the confusion



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with a three way switch like this, you will have two traveller wires and a common wire. Look in the instructions for the switch or on the back of the device itself to see if there is a wire labeled "common" or "com". This common wire from the old switch hooks up to the common wire on the new switch. I did a bit of searching on the leviton 6602, but couldn't find anything specifically about the three way version (I would venture to guess, however, that the red wire on the old switch is the common). The common on one of the three way switches will always be a constant hot (or power) wire...the common on the other three way switch will be the "switch leg" or the wire that connects directly to the light. The two travellers go to the other two wires. Check the pamplet that came with the lutron device, it should show which wire is common and which are travellers.

Sep 24, 2011 | Leviton Trimatron Rotary Dimmer 6602-i Lot...

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The house has a red and black wire the trimatron has2 black one green am i missing a wire or does one black not get hooked up?

Rotary dimmers have 2 black wires, and the color-code tells electrician that both blacks are interchangeable.
This means that dimmer is for single pole only. That dimmer will not work for 3-way switching where more than 1 'switch' controls same Load (light fan motor)
Connect either black dimmer wire to the red, and connect other black dimmer wire to the black.

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Mar 06, 2011 | Leviton Trimatron Rotary Dimmer 6602-i Lot...

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I just purchased 2 of these dimmers from ebay but they do not have the instructions. Both are exactly alike and have 2 wires. How do they install?

You posted under Pass and Seymour rotary dimmer that has two wires.

If your dimmer is like other rotary dimmers, it has a black and red wire.
Or it has 2 black wires.

If your switch has 3 wires, then the dimmer will not work.
If your switch has 2 wires:
Probably both switch wires are black.
One of these wires goes to Load (lights)
The other wire is Hot from breaker box

If dimmer has 2 black wires, they connect to either wire from switch.

If dimmer has black and red wires,
> dimmer-black connects to Hot from breaker
> dimmer red connects to Load
> green (if available) goes to bare copper wire

If you do not know which wire is Hot from breaker, simply hook up dimmer and see if it works.
If it doesn't, then reverse the wires.

If this information does not fit your specific dimmer, please answer back with more details and we'll get it working.

Oct 23, 2010 | Pass & Seymour #R600PLAV 600W Almond SP...

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How to install a 3 way plug for stove

If I understand correctly, your stove plugs into the wall.
Your stove plug looks similar to one shown

Review wires inside wall.
There are 2 hot wires which are red and black
There is 1 neutral wire which is white
And there is a bare ground wire

Connect wires so they match image above.
2 hot wires, black and red go across from each other
White neutral connects to flat prong on top
Bare ground connects to round prong on bottom
Older wiring might not have both white and ground ... if you do not have both, then connect the wire you have to the flat prong on top

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1 Answer

I have a leviton trimatron 6683 3-way switch with 4 wires, (from left to right) green, red, red, black. I can turn the light on & off at the switch across the room but I can't turn it on then with the...

There are a possible two problems you might have. First a quick explanation of 3-way systems. If you have a common 3-way system, one switch box will have the "Power End" and the other switch box will have a "Switch Leg" end (the wire that goes to the actual light fixture. Then inbetween the two boxes there will be two (usually red / black ) "travelers" that connect to the switch. Here is a link to a standard 3-way system. In the picture, the switch on the left is the "power end" and the switch on the right is the "switch leg" end. the first thing to do is establish whether you are in the "power" or "switchleg" box. You can do this by completely disconnecting the dimmer, then test which wire has power using a voltage meter. (do not use a "hot stick"! the tester that beeps or lights up when it senses voltage. These can give you a false reading) Once you know which wire has power, go to the other switch and flip it. If the same wire still has power, then you are in the "Power" side of the 3-way, IF A DIFFERENT WIRE HAS POWER NOW, YOU ARE AT THE "SWITCH LEG" side of the 3-way. The most frequent mistake made while installing a 3-way switch is getting the common and travelers mixed up. If you are in the "Power end", the "common" (or connection to your dimmers black wire) should be the wire that had power no matter which position the other switch is in. If you are in the "switchleg" box, the "common" or black wire from the dimmer should connect to the third wire that DID NOT HAVE POWER no matter which position the other switch was in.
The second (and less common) mistake with 3-way systems and dimmers is that certain dimmers are REQUIRED to be on either the power or switchleg side to work properly. If this is required it should be stated in the instructions!. Good luck and feel free to reply if you're still having trouble getting it going.

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1 Answer

Installing cooper 30A 250V female receptacle.

Correct, assuming red and black are connected to the breakers in the breaker panel, and white is connected to the neutral/ground buss bar in the breaker panel.

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1 Answer

I have two wall switches in a hall for an over head light. I would like to install a rotary dimmer in one of the switches. My dimmer has 1 green and two black wires, and my wall switch has 2 black, 2 red...

You cannot, at least not using the dimmer you have in your hand. The switch with all the wires is a four-way switch, which is used to make a "suicided" 3-way switch. The power comes in AND goes out to the light from that switch. The other switch is a 3-way. Neither one has the "ON" or "OFF" marks on them, do they? You can buy a 3-way dimmer, but i do not know if rotary-style 3-way switches exist. You will have to install the dimmer at the other switch because i am quite certain no 4-way dimmers are available.

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1 Answer

Trimatron 3 way push on off dimmer switch

One wire is the common and the other two are the travelers.The trick is to find which one is which.... If you can see into the electrical box check to see if one of the red wires and the black wire are from the same cable, if they are then more than likely those two wires are the travelers; you can also look at the other switch and see which two wires are on the brass colored screws, those would also be travelers. The common is usually the wire that is on the black colored screw. Once you figure out which wire is your common, I'm thinking that it is one of your red wires, you would attach that wire to the black wire on the dimmer and the other two wires to the 2 red wires on your dimmer.

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1 Answer

I have the Trimatron Dimmer switch to install,

one black from the dimmer to black. the other black from the dimmer connected to red. the green connected to the bare wire.

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1 Answer

Install a single pole light dimmer

House wires are for a 3 way switch, you will need a different switch

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