The PTH Series of fiberglass boxes assures strong protection by virtue of its polycarbonate plastic reinforced with 10% glass fibers. The design offers dual configuration for the location of the hinge: on the long side or on the short side. Clear covers are available. A self-locking latch prevents unintended opening of the enclosure door due to vibration and other forces. All models in the series meet IP67 and 1, 2, 4, 4x and 6 specifications.