ELECTRICAL
Welcome to MicroMetl’s Electrical Knowledge Center
Electrical fundamentals and terminology can feel overwhelming—even for seasoned HVAC professionals. Yet understanding the essentials is critical when working with rooftop units, controls, motors, sensors, and accessories.
This section breaks down electrical concepts in simple, practical terms. Our goal isn’t to turn you into an electrical engineer—it’s to make sure you have the clarity and confidence needed to work safely and effectively in the field.
Have an electrical question or a topic you’d like us to cover?
Send it our way. We’d be happy to explore it in a future blog post or multimedia feature.
The 101 Basics On NEMA Standards For Enclosures & Motors
If you think NEMA is the name of your long lost cousin, you're reading the wrong article. NEMA is an acronym for The National Electrical Manufacturers Association. Most often organizational ratings are confined to a single manufactured product, whereas NEMA offers...
HVAC — Single Phase, Three Phase… What’s the Difference?
The HVAC Industry offers end-user equipment operating with either single phase, or three phase electricity. We spec it every day, but what are the differences, and are there advantages. Electrical Phase Explained No Phase - DC Power Allow me to use a battery for this...
Basic Electricity Defined & Simplified
Those of us in the HVAC industry are faced with the complexity of electrical jargon whether we like it or not. This article is designed to explain the jargon, without attempting to make you into the next Thomas Edison.
