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.
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.
The 101 Basics On NEMA Standards For Enclosures & Motors
NEMA is not a person — it’s the National Electrical Manufacturers Association, an organization that develops standards for a wide range of electrical equipment. Unlike a single-product rating system, NEMA provides standardized guidelines that cover hundreds of...
HVAC — Single Phase vs. Three Phase: What’s the Difference?
In the HVAC industry, equipment is commonly built to operate on either single phase or three phase electrical power. Technicians spec these options every day, but understanding the differences—and the advantages of each—helps ensure the correct equipment and...
