Electrical connectors! What types and which to use?

Electrical connectors are very useful components, but even so there are still a lot of people who don’t know how to choose the right electrical connector. In this article, we will show the main electrical connectors for branching, in addition to explaining all their characteristics and use, come on guys.

Electrical connectors: How to choose?

The first tip we will pass on is that there is no order from worse to better, precisely because some of these connectors have very different characteristics and application locations. So, read each tip carefully, especially about the dimensioning part that is where people make the most mistakes!

Auto-connect connector

This first type is a connector that can be used in various applications such as residential installations, ceiling fans, luminaires, and plug sockets. In addition to the incredible practicality of use, these connectors offer connection and insulation at the same time, thus eliminating the use of electrical tape for this splice.

Know where to use an auto-connect connector.

The self-connect connectors can be found with 2.3 or up to 5 poles and they are compatible with flexible, semi-rigid and rigid cables. The capacity for flexible cables is 0.14 to 4mm², and for semi-rigid and rigid cables is 0.2 to 4mm². These models in the image above are from the 221 and 222 lines, and they have a current capacity of up to 32 amps, but there are other models with greater capacity.

The handling of this connector is very simple! You must first strip the cable and on the side of the connector, you will find the exact measurement that needs to be stripped. Then just open the orange lock, connect the cable and then close the lock. In addition to being efficient, it is very fast and safe!

Porcelain connector

The second is the porcelain connector, which is the most suitable model for splicing in places with high temperature, so it is the most suitable connector for the shower. This type of connector has excellent thermal insulation, also dispensing with the use of electrical tape in its amendments.

Know where to use porcelain connector.

This model in the image above is three-pole for cables with gauge up to 16mm², supporting a current of up to 50A. But know that you can also find bipolar and even three-pole porcelain connectors with different capacities.

The handling of this porcelain connector is very simple! Just use the appropriate screwdriver to loosen the screws of the connection terminals, then you must insert the cables and then just tighten it well. There, the amendment is done!

Sindal multiple connector

The third is the sindal multiple connector, which is a great option for amendments to control panels such as a terminal strip, precisely because the busbar has several terminals and excellent insulation.

Know where to use multiple union connection.

This model in the image above is for cables with gauges up to 4mm², supporting a current of up to 24A. But you can find these multiple connectors with capacity for cables with a gauge of 4,6,10 and up to 16mm². So, just choose the one that will suit your need.

The handling of this connector is similar to that of porcelain, you must use the appropriate screwdriver to loosen the screws of the connection terminals, then just insert the cables and lastly just tighten it!

Twist connector

The fourth is the twist connector which is an excellent option for those who want to make fast and secure cable splices, because just like automatic connectors, twist connectors are also very simple to handle and are great insulators.

Know where to use twist connector.

The torsion connectors can be used in ceiling fans, splicing for luminaires, pass-through box and splicing of sockets. These connectors have different colors which are: red, yellow, orange, blue and gray. It is important to be aware that each connector color supports a different chain and gauge.

Another important information is that the gauge corresponds to the sum of the gauge of the two cables to be spliced, that is, in the case of the splicing of two 2.5mm² cables, you must use a connector for a gauge of at least 5mm².

  • Gray – Gauge between 0.8 and 2.5 mm² and up to 21 amps
  • Blue – Gauge between 0.8 and 4.5 mm² and up to 28 amps
  • Orange – Gauge between 1.5 – 6 mm² and up to 36 amps
  • Yellow – Gauge between 2.5 – 6 mm² and up to 36 amps
  • Red – Gauge between 4.5 – 17 mm² and up to 68 amps

The connection is very simple! You must strip the cables, join the ends, insert into the connector and screw until it is very firm. The use of these connectors grows more and more every day, precisely because it is very fast to make the splice, which once ready does not come loose even if you pull the cables very hard.

Split bolt connector

This fifth and last one is a Split Bolt connector, which is the type of connector most suitable for use in standard pass-through boxes. Insulation with Split Bolt connectors requires insulation with self-fusing tape and electrical tape!

Know where to use split bolt connectors.

This model in the image above is for cable splices with a gauge between 4 and 25mm², but there are several other models with different capacities. So just look for the right model for the amendment you need to make.