The SERPAC M4-BLK is an utility enclosure made from black, high impact polycarbonate. They are specifically designed for housing electrical components and equipment and feature a unique interlocking design which allows enclosures to be mounted side by side. This means that more than one enclosure can be stacked on top of each other and joined together for a secure fit, creating the space to accommodate larger devices such as a battery banks, dashboard components, and other electronic devices. The M4-BLK enclosures are manufactured according to UL and NEMA standards and are waterproof and dust-proof, making them suitable for harsh environments, and they feature an easy-off lid which can be removed by tool-less thumbscrews.