This document provides specifications for various distribution boxes including dimensions, mounting sizes, and number of ways. Before you customize your packaging, you need to pay attention to the box dimensions. It involves multiplying the width, depth, and height of an entity to determine its total size or volume. Actual units use PNP status indicator, NPN status indicator, or neither. Dimensions are shown in mm (in. 81 ft)]. Understanding box dimensions is essential whether you're involved in shipping, moving, or custom product packaging. In this comprehensive guide, we. Feature highlights: High-quality WHD series terminal block connectors with flame-resistant Nylon PA66 and brass conductors, designed for 500V/125A unipolar power distribution.