the Circuit

the Circuit

Extended lead times and material availability on raw materials like polymers and resins are continuing challenges when ordering custom spec wire and cable products.  Raw materials continue to trend at or near record levels with increased demand, reduced capacity and continued supply chain issues. We have seen some stabilization over the past 30 days but expect continued instability through at least the first half of 2023.

While we are all looking forward to improved supply chain stability long term, we continue to navigate the volatile market by investing in inventory to insulate our customers from the challenges as much as possible.  If you have any questions or concerns regarding your outstanding wire order, contact your account manager.

ratings matter

Extreme cold temperatures can cause cables to stiffen, crack, and even break. To avoid cable damage, select a cable with a sufficient cold temperature rating for your application.

Industry standards allow a variety of cold temperature ratings. This rating reflects the cable’s lowest recommended temperature for installation. Cables made of thermoplastic insulation (THHN/THWN-2) may stiffen at temperatures colder than -10°C, while cables made of thermoset insulation (XHHW-2) are temperature rated for -40°C. Thermoset products like XHHW-2 have XLPE (crosslink) insulation instead of PVC. The cold temperature resistant polymer allows the cable to better maintain its flexibility during cold weather installations.

size matters

The two (2) most important factors to be considered are

    How much current the wire has to carry
    How long the wire run is

The most important factor of these is current. The more current drawn the larger the wire you will need.

Wire size (diameter) is specified in terms of “AWG” (American Wire Gauge) which is more commonly known as “Gauge”. The confusing thing about wire sizing is that as the wire gets larger, its’ gauge number gets smaller until you get into 1/0 and up. Once you get into these sizes it runs traditionally, the larger the number; the larger the wire size.

what does it stand for?

Understanding electrical wire lettering will help you decide which type wire is best for the installation that you are using.  Here are a few examples:


The meaning of each letter used in the labels above is given below: