2521 Black Plug Locking 4-Pole 5-Wire 3-Phase L22 20P 20A 277/480V

At Maple Electric Supply, we’re dedicated to delivering a shopping experience grounded in trust, expertise, and a commitment to quality. Our owners have over a decade of hands-on experience in the electric supply space, and we’ve proudly served thousands of happy customers across the USA and Canada, building strong relationships through every interaction. We’re not just about selling products; we’re here to guide you in finding the best electrical solutions to meet your unique needs. Our team is deeply knowledgeable across top brands and a wide range of electrical supplies, making us a trusted partner whether you’re a professional electrician or a DIY enthusiast. Every electrical product on our site reflects our high standards, and every customer benefits from our dedication to safety, reliability, and lasting value. At Maple Electric Supply, we’re here to make your projects successful and your experience seamless—because your satisfaction is our priority.