Provide strong, versatile and easily installed terminal block mounting supports. These assemblies fit many Single-Door, Type 4, 12, and 13 Enclosures. They also fit large Type 1 enclosures and the larger sizes of Hinged Cover Lift-Off Type 3R enclosures as well as most of the Two-Door Wall-Mounted Type 12 enclosures. Each enclosure requires one terminal block bracket kit plus the desired number of terminal straps. The terminal block brackets and the terminal straps must be ordered separately. To select the correct terminal straps, determine whether the terminal straps will be mounted parallel to the A dimension or the B dimension of the enclosure. Be sure to specify the quantity required. To select the correct bracket assembly, determine whether the brackets will be mounted parallel to the A dimension or the B dimension of the enclosure.