What Are Push-in Wire Connectors
Push in wire connectors are also known as backwire connectors. They provide a fast and simple way to connect wires. In this case, instead of coiling the wire around a screw, as is usually the case, you plug the wire into a hole at the rear of the device.
In this hole, there is a metal clip. The connection is made when the clip tightens around the wire after it has been inserted. Some key features of push-in connectors are:
1. Convenient to use
They are very convenient to use. You just have to remove the wire's outer layer, put it in the hole and push it to the end. The screws do not require any wrapping around them. This method is less time-consuming compared to screws.
2. Safe Connection
The metal clip tightly connects the wire and efficiently transfers the electricity. This ensures a firm connection and prevents the wires from falling out after prolonged use.
3. Space Efficient
The wires are directly inserted into the connector at the back of the case rather than sticking out of the side screw terminals. This ensures that cables are grouped neatly and compactly.
4. Compatible
It is one of the most used types of connectors and can be installed in most of the new gadgets found in homes today, such as receptacles, switches and light fixtures. This makes push in wires suitable for multiple areas of the home.
What are Screw Connectors
Screw connectors, also known as terminal screws, are one of the oldest methods of connecting wires to devices. A screw terminal has a screw that is located on the side of the terminal.
To make the wire connection, you unscrew it, place the bare wire around it in a clockwise manner, then tighten the screw again. Some key features of screw connectors are:
1. Proven and Reliable Technology
They have been in use for many years. They have a proven record of firmly holding on to the wires with the screws tightly placed.
2. Thicker Wires Compatibility
The design is more suitable for accommodating thicker wires than thinner ones. This enables more voltage equipment to be used with these switches and outlets.
3. Convenient to Access Installing Wires
You can easily verify whether the screw is tightened correctly or not by just a visual check or by tugging the wire. This makes their security checks to be much quicker and more hassle-free.
4. Permits Modifications
There is an option of removing already existing wires and fixing new ones on existing screw terminals if required in the future. The circuits can be easily modified when needed.
Push-In Wire vs. Screw Connectors: Which One?
All these wiring methods come with their advantages and disadvantages. Here are some key comparisons between the two:
1. Code Approval:
Both types might comply with electrical codes across the nation when put in the right manner, but check the code for your area and application.
Push-in connectors have a relatively short electrical code history compared to screws, which can make them unsafe if installed incorrectly.
2. Safety:
Industry testing reveals both can establish robust contacts that do not overheat. Screws allow easier inspection and can fit thicker wires.
Push-in can be problematic for the ability of wires to connect correctly if they are not the right size.
3. Speed:
Screw connections need to be screwed after installing the wires and need more time during installation.
Push-in wires are faster by about 50% in installation than screwing wires down. This saves time and labor costs during installation.
4. Durability:
Screws are more resistant to heat and physical force for more than 30 years of use. They also support thicker wires, which can carry more voltage.
Push-in wires have thinner wires, which can make them susceptible to heat damage if the voltage limit is exceeded.
5. Cost:
Screw connections have been around for quite a long time and are much more affordable.
Push-in receptacles and switches are generally slightly more expensive than their counterparts with screw terminals.
6. Ease of Use:
Screw connections have some initial work that needs to be done and involves tightly screwing the connections.
Push-in is easier for DIYers because no wrapping is done around screws. At the same time, bolts are easier to use compared to screws since they do not require much precision.
Both connections are useful and appropriate for specific scenarios. Evaluate the advantages and disadvantages in your case before settling for one. Always make connections safely and permanently and ensure that they are tight.