10/14/2026
WELCOME TO OUR NEW EXPLAINER SERIES!
In this series we will break down electrical products, terminology, and common questions into short, practical videos. Each episode focuses on one topic to help you understand the differences and what they mean for your application.
Today's topic:
NEMA 1, 3R, 4 or 4X? The difference starts with the environment.
In our first episode, we EXPLAIN what these enclosure ratings mean and the protection each describes.
• Type 1: Indoor use and falling dirt.
• Type 3R: Rain, sleet and snow.
• Type 4: Adds protection against windblown dust, splashing water and hose-directed water.
• Type 4X: Adds corrosion resistance to Type 4 protection.
The details matter.
Let us know what you think!