The 1591XXSSBK is a multipurpose plastic enclosure designed for horizontal mounting of printed circuit boards. It features smooth internal surfaces for easy connector installation and a robust tongue-and-groove lid-to-box construction, providing protection against dust and splashing water. Made from easy-to-machine, economical black plastic with a satin texture, the enclosure also includes molded-in PCB standoffs in both the lid and the box. Suitable for industrial applications.