How do we know which connector we need and how to choose the proper industrial connector for the application? Every connector has its own unique properties and specialties; choosing a suitable connector enables smooth functioning of power or signal transmission. When it comes to selecting an industrial connector, there are certain parameters that you must consider.
Every connector package is designed for a specific wire gauge. Always choose a connector that perfectly matches your wire gauge otherwise you increase electrical resistance at the connection point. The wire gauge is usually printed on the cable. Globally AWG (American Wire Gauge) is more common, but other standards are also used in some regions; make sure you us the proper gauge wire for your connector based on the current it will be carrying.
Just like wire gauge, note the outer diameter of the cable. Cable sizes differ according to specification, and it is essential to choose a housing (connector) with a large enough inner diameter so that the cable can fit in properly. Choosing a connector with smaller inner diameter can damage the cable, affect current capacity and cause difficulty in the fitting. Similarly, choosing a connector with a larger inner diameter can lead to lose connections and the possibility for arcing or sparks.
Every cable and connector is specified for a limited voltage and current range. Always choose a connector rated for the same voltage and current range as your cable. You can always overrate the current and voltage carrying capacity, but never underrate. The material, size and even the contact area of connectors affect the flow of current and potential difference, so choosing an improper connector can lead to malfunctioning.
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Some applications are highly susceptible to vibrations and bend. It is essential to choose a flexible connector so that it can withstand movements and will not deteriorate. In the case of bends, special connectors with wire mesh or strain reliefs are used for the protection of cables.
In some cases, the connectors are prone to chemical contact. Since chemicals can damage and affect connectors, special connectors made of stainless steel or PVC can be used for longevity.
Primarily, the factors mentioned above are the most important factors to be considered when selecting industrial connectors, but for better efficiency, it is recommended to consider the scalability of the project. Choosing a more standard connector that is compatible with modern equipment will be useful in the long-term if at any stage the equipment is upgraded.
Selecting the right connector for industrial needs demands technical knowledge. There are companies that specialize in connectors and would be considered expert resources for connector advice. It is recommended to avail the services of a technical person for selecting the best connector for your equipment.