NEMA AC Input and Output Connector Styles….. Are You Confused?

by Jennifer, Inside Sales Associate 6. July 2011 08:35

If you find yourself confused about what NEMA AC input and output connector styles exist, you’re not alone.  It can truly be confusing to the untrained eye.

Different types of AC input and output connectors are designed to address various wiring systems. Each unique design also aids in the area of safety, as only the appropriate plug will fit into the proper receptacle. For example, the 5-20R outlet is capable of accepting the 5-20P as well as the 5-15P. However, the 5-20P will not connect to a 5-15R. A quick reference guide is provided below to serve as a helpful tool in clearing up some of that confusion.

**Fields highlighted in yellow are 3Ø∆; Fields highlighted in green are 3ØY

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