Siemens XLVB421N Industrial Power Relay Module

Siemens XLVB421N is a four-pole fusible bus switch module designed for Siemens XJ-L busway systems, delivering four distinct conductors for power distribution across bus sections with a 30 A, 240 V AC rating. This 4-pole bus plug, often listed as Siemens/ITE XLVB421N, is part of the XLVB/XJ-L family and is used to interconnect segments of heavy-duty bus duct in modular industrial power layouts. It serves as a plug-in component within industrial power distributions, enabling quick reconfiguration of feeds in manufacturing facilities and other environments that rely on modular busway architecture. In practice, the XLVB421N supports straightforward, tool-free sectioning and reconfiguration of power distribution paths within large-scale electrical installations, helping streamline maintenance and expansion of power networks.