ask the electrician
Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet Wiring and Installing Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable


Smart Light Switch Wire Connections

I am trying to connect a smart light switch. The existing switch only has two black wires connected to it, which i assume are the line and load wire.

Electrical Video #1

Electrical Wiring Tips

Helping You to Wire It Right!

See more Home Electrical Wiring Videos

Check out my YouTube Channel, and Subscribe!

See the Electrical Wiring Video #2 Below:

Wiring a Smart Light Switch

Electrical Question: I am trying to connect a smart light switch. The existing switch only has two black wires connected to it, which i assume are the line and load wire.

How to Wire Light Switch

Dave’s Reply:

I am trying to connect a TP-Llink smart light switch. the existing switch only has two black wires connected to it, which I assume are the line and load wire. the new switch has 4 wires, which all need to be connected – line, load, neutral and ground. pretty straight forward, or so I thought.

I pulled all of the wires out of the switch box to locate the neutral and ground wires and found a bundle of ground wires and another bundle of neutral wires clamped together (please see photo). In my limited experience, I have never seen this before. Would I be able to separate one ground and one neutral wire and connect them to the switch?

Thank you!

This electrical wiring question came from Jeff in Honolulu, Hawaii.

Dave’s Reply:

Thanks for your electrical wiring question Jeff.

How to Wire a Smart Light Switch

Application: How to Wire a Smart Light Switch.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Certified Electrician.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source to the Light Switch, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the Light Switch should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your specific area of Hawaii. A permit and inspections may also be required.

Wire a TP-Link Smart Light Switch in a Garage

This electrical wiring project is about wiring a smart light switch in the garage of a old house.
electrical-wiring

Light Switch How to Wire

From what you have described, and looking at the photo, the home wiring has been installed and crimp connectors have been used for the spliced connections, and this is typical for many older homes.
Here’s what I typically do in a situation like this: Turn off the circuit power. An additional wire may be added to the group of ground wires as they are now, just trim the ends of the wires evenly and add one more wire, then twist the group together and install a twist on wire connector.
The group of neutrals will either have to have the crimp connector removed, or the group of wires may be cut just below the crimp, then strip back the insulation, add an additional white wire, twist together, and install a twist on connector. This will provide you with all the wires you need, including the switch wires, to wire up the TP-Link Smart Switch

More about How to Wire a Light Switch

How to Wire a Switch
electrical-switches

Wiring a Light Switch – Diagram 1

Wiring Diagrams
Fully Explained Light Switch Wiring Diagrams. Detailed Electrical Wiring Diagrams and Pictures assist your Home Electrical Projects.

Guide to Home Electrical Wire
electrical-wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Home Electrical Sub-Panels
electrical-panel-wiring

Sub-Panel Electrical Wiring for the Home

Electrical sub-panel wiring considerations for the home complete with pictures. Careful planning for your Sub-Panel with immediate and future load considerations will help you understand how to size your Sub-Panel. This information will help as you consider a Sub-Panel and its size.

Electrical Boxes for Electric Repairs and Home Wiring Projects
electrical-wiring

Electrical Junction Boxes for Home Wiring

Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.

How to Install Garage Electrical Wiring
garage-electrical-wiring

Garage Electrical Wiring

Fully Explained Photos and Wiring Diagrams for Garage Electrical Wiring with Code Requirements for most new or remodel projects.

Electrical Grounding and Ground Wires
Electrical Grounding Methods and Requirements

Electrical Grounding Methods and Requirements

Listing of electrical codes for grounding with examples of electrical grounding codes for home electrical wiring.



The following may also be helpful for you:

Electrical Wiring Video #2



Home Electrical Wiring Videos about this Topic and More

Check out my YouTube Channel, and Subscribe!



Learn more with my Home Electrical Video Course:

Basic Home Electrical Wiring by Example

Dave's Guide to Home Electrical Wiring:

» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.
  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handy Women, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.



Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

More articles about Electrical Repair and Home Electrical Wiring:
« Previous Next »
Wiring a Shed with Outlets and a Light How to Fix a Ceiling Fan with Lights Going On and Off