An enclosure for terminal blocks for interconnecting conductors of multiconductor cables includes provision for two or more terminal block modules. A lid is pivotably hinged to a box-like base section, by dowels trapped in slots of hinge hooks by free ends of latch arms, with both hinge hooks and latch arms molded integrally to the rear wall of the base section. A single-piece molded clip is also defined by the hook and latch arm joined to a common base section.