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Since 1962

Supplies, Fixtures & Resources for any Electrical Project

McGowan Electric Supply, Inc. is a full-line electrical distributor based in Jackson, Michigan with a branch in Adrian. We offer top-quality electrical and lighting products for contractors, building managers, commercial requirements, architects, and others in the trade.

Since 1962 we have listened to our professional electrical customers to build our broad and deep inventory. Our professional sales staff will be able to help you make the appropriate selections for your projects.

For 50 years, McGowan has been committed to selling superior products at competitive prices, all with an emphasis on excellent customer service. McGowan Electric Supply, Inc. doesn’t just want to be your vendor; we would also like to be your partner.

Download the NEMA Locking Blade Configurations Chart and NEMA Straight Blade Configurations Chart.

Calculate how much you will save each month upon upgrading your lighting to LED options.

Calculate the voltage drop for installing wire at certain lengths.

Take a look at our ampacity chart to discover the relationship between wire size and amp ratings.