The IP20 power distribution (WPD) blocks’ design incorporates finger safety and joins individual blocks to create small bus modules in the control cabinet. The compact, single-bus modules can manage multiple load connections from one to nine poles. This design provides space-savings in the cabinet, while the transparent top cover offers a clear view of wire termination points and bussing configurations. The WPD blocks can be DIN rail- or direct-mounted and ganged together via built-in joiners to create multi-pole assemblies of two- and three-phase groupings. The blocks are suitable for power source distribution in low-voltage applications.