Industry News & Insights

THHN vs THWN-2: What the Letters Mean and Why It Matters

Nearly every spool of THHN sold today is dual-rated THHN/THWN-2. Here's what each rating actually certifies, a...

SIS Wire Guide: Switchboard Wiring, NEC Rules, and Specifications

SIS is the wire the NEC expects inside switchboards and switchgear. Here's what makes it different from other ...

DLO Cable vs Welding Cable: When to Use Each

DLO and welding cable are both flexible, rubber-jacketed power cables — but they are not interchangeable. Volt...

What Size Welding Cable Do I Need? (Amps × Distance Guide)

Welding cable size depends on two things: your welder's output amperage and the total length of your leads. Th...

Metric to AWG / MCM Conversion Chart (mm² to Wire Gauge Guide)

Copper vs. Aluminum Conductors: Key Differences, Advantages, and Applications

Copper and aluminum are the two most common electrical conductors used today. Learn how they compare in conduc...

UL1007 vs UL1015 Wire: Key Differences and Which One to Use

UL1015 handles 600V and 105°C with a heavier wall; UL1007 is the thinner 300V wire that routes easier in tight...

Welding Cable: Construction, Ratings, and How to Size It

Welding cable is fine-stranded copper under thermoset rubber, built for the abuse of a welder's secondary circ...

Diesel Locomotive Cable (DLO)

Diesel locomotive cable (DLO) is a flexible, heavy-duty cable with EPR insulation and a CPE jacket. Learn abou...