Do light switches need a junction box?
You don’t often have to install a dedicated junction box, however, because switches, lights and receptacles are all installed in electrical boxes that can serve double-duty as enclosures for spliced wires.
What’s goes in L1 and L2 on a light switch?
The other terminal is marked as L1 and is the output to the light fixture. When you’re wiring decorative light switches such as chrome or stainless steel etc, you’ll find that the switch will also have an L2 terminal which means it’s a two way switch.
What does com and L1 mean on a light switch?
The faceplate of a single, one-way switch has two terminals: “L1” is the terminal to which the neutral core wire is attached – the blue wire (traditionally black, before the change). “COM” or “Common” is the terminal to which the live core wire is attached – this is the brown wire (formerly red).
Does neutral wire need to be connected to switch?
If the reason you have 4 existing neutral wires is that you have two feed lines, you only need to connect the neutral wire from one switch and that switch’s load to the neutral of each feed line.
Do you need a neutral wire on a light switch?
In the case of smart light switches, they typically require a neutral wire because they need to be powered all the time. The neutral wire allows the circuit to be completed and the switch to be powered on. This is true even when you have a smart light switch in the “off” position.
Should junction box be flush with drywall?
Position Box The front edge of the box must be flush with the finished wall surface, usually 1/2-inch-thick drywall.
Can I use a light switch as a junction box?
Using switch as a junction box. Instead of using a pigtail to join the two wires they are using the device to make the connection. It is allowed, but many do not consider it a good practice. You can remove the two wires and add a short pigtail to splice the wires. Click to see full answer. In respect to this, when would you use a junction box?
How do you wire a junction box?
How do you wire a junction box? If the box is metal, add a pigtail—a six-inch length of the same type of ground wire—to the ground wire connection, then connect the loose end of the pigtail to the ground screw on the box. Join the white (neutral) wires together, then join the black (hot) wires together. Read everything about it here.
How to wire a junction box?
Single Screw Terminal. Each terminal has a screw in a place where each end of the cable passes through to connect.
How to install an electrical junction box?
To find the right size junction box in cubic inches,count the number of wires entering the junction box.