What color wire goes on which screw? - Lands Phones

Almost!
the black screw is the "common" so the hot wire or the colored wire (usually black or red) bringing power in goes on to the black screw and all white wires (neutral) get connected together. you need to verify which wire has constant power when all wires are disconnected and separated first.

*White wires all connected together separate of the switch
green screw = ground or bare wire
black screw = hot wire/ wire with constant power
silver screws = (switched terminals) black or colored wire from each device being powered (eg. light) per screw

1) Look at screw color.
New device has brass screws on one side, and 1 silver screw for each switch located on other side of device.
Hot wire goes to brass screw.
Wire to fan goes to one silver screw
Wire to light goes to another silver screw.
Wire to heater goes to another silver screw.

If you do not have a wire for each individual Load, then you will have to add wiring.

2) Electricians don't guess, they test.
Separate wires for testing.
Turn power ON.
Test each wire to bare ground wire.
Tester lights up on Hot wire.
Hot wire connects to brass-colored screw.
If any wires on old switch was connected to same Hot wire, then also connect that wire to brass-colored screws.

Hot wire is identified.
Test Hot wire to each other wire in box, except bare ground.
Tester lights up on Neutral wire. Neutral wire will NOT connect to this switching device.
Next, connect one of the remaining wires to a silver screw.
Turn power ON.
Flip switch to see what Load that wire controls.
By process of elimination, add wires to each silver screw and test each by flipping switch.
Breaker will trip if you connect Neutral to silver screw.

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The white wires from the two light fixtures get connected to the white wire from your power supply.
Then the black from your power supply goes to the gold colored screw on the switch. Lastly, the two black wires going to your light fixtures get twisted together with a third jumper wire. The other end of the jumper goes on the silver screw on the new switch.

You are install a switch-receptacle combo.

As you have realized, screw color is the key.
1) Black hot wire connects to dark colored screws.
Both dark screws are connected together with brass plate, so hot wire only needs to connect to one of the dark screws.

2) Wire going to Load (light,fan, motor) connects to brass colored screw.

3) White neutral wire connects to silver colored screw.

4) Lets look at problem as if new wiring device is replacing old on-off switch that has two wires.
So old on-off switch has two wires >> one is black hot wire, and other is wire going to load.
Separate wires, turn on power and test each wire to bare ground wire.
Tester lights up on hot wire. This wire goes on dark screw.
If old on-off switch had another wire connected with the hot wire, that wire also goes on the dark screw.
The other wire from old switch is the Load wire, and it connects to brass colored screw.

Now you need a neutral wire.
In back of box are white wires twisted together and covered with wire nut.
These are neutrals.
To confirm that these wires are neutrals >> turn on power and test hot wire to other wires in box. Tester lights up on neutral.
Neutral wire connects to silver screw, and this will complete the circuit for any electric device plugged into receptacle.
If box does not have neutral wires as described above, you can violate code and connect bare ground to silver screw >>> but do NOT do this if your new plug is going to be used regularly.
You can use bare ground temporarily until additional wiring is made available.

I have 120Volt cooper 277 pilot light switch here in my office.
Dang instruction sheet shows wiring for all kinds of cooper devices.
EXCEPT pilot light switch.

So I tested with multimeter and came up with following:
Key to any wiring device is color of screws.
Hot from breaker box always goes to dark-colored screws.
Neutral always goes to silver-colored screws.
Brass screws are for Hot wires from breaker or Hot going to Load
Green screw - ground

Is this 110 volt or 220 volt?

110 = white wire goes to the neutral side of the circuit ... or the silver color screw on the plug. The black wire goes to the brass color screw ... or the "hot" side of the plug. The green wire goes to the green screw.

220 = youwill find on the 220 20 amp plug there are two brass colored screws + a green screw for the ground.

Can you tell me where the outgoing wires are going to. Bare wire is ground goes in green color screw, white wire is neutral and goes in silver color screw, black wire is hot or live and goes in gold color screw. It is difficult to help you with little information. how do you know what is incoming and outgoing.

the black wire goes to the bronze colored screw, the white wire goes to the silver screw and the ground wire goes on the green screw. hope this helps you...

I think someone has used wiring that didn't come with the opener. One the rear of the motor unit are wiring terminals. The sensors connect to terminals 2 and 3. Whichever color wire is connected to terminal 2 goes to the screw marked white and the wire on terminal 3 goes to the screw marked black. This information is if you have a Craftsman or Chamberlain opener.

doesn't matter both are 110v lines but if you want look up to top screw connections the wires coming to those screws are also colored as long as the red and black are to outside screws dryer will work ok