electrical protection

NEMA 3R vs NEMA 4 Choosing the Right Industrial Enclosure

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The real difference between a NEMA 3R and a NEMA 4 enclosure boils down to one thing: pressurized water. A NEMA 3R enclosure is built to handle outdoor weather—think rain, sleet, and snow. A NEMA 4 enclosure, however, is designed to take a direct blast from a high-pressure hose, making it the go-to choice for … Read more

A Practical Guide to Different Kinds of Fuses

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Fuses can be sorted in a few different ways, but the most common are by their response time and their physical form factor. The main types you'll encounter are fast-acting fuses for sensitive electronics and time-delay (or slow-blow) fuses for equipment with big startup currents, like motors. Their shapes also vary a lot, from classic … Read more