Square D 8502REQ3537G2 &H R47370D7 Lighting Contactor

R47370D7 is a Square D (Schneider Electric) lighting contactor in the 8903 panelboard family, a cross-reference commonly listed as 8903REQ3537G2, designed to switch lighting loads in commercial and industrial panelboard applications. Built for reliability in centralized lighting control, it supports panel- and bus-mount configurations within Square D’s lighting-contactor ecosystem, simplifying replacement and retrofit in existing installations. Square D lighting contactors like the 8903 class are fully rated for resistance loads up to 600 V, delivering dependable operation for a range of lighting circuits, including fluorescent, HID, and LED installations in offices, retail spaces, data centers, and manufacturing facilities. The R47370D7 designation identifies a specific variant used by distributors and OEMs to ensure compatibility with legacy panelboard designs without requiring wiring or mounting changes. This part is positioned for medium to heavy lighting-control duties in panelboards, offering the rugged NEMA-type construction expected from Square D products and the mechanical endurance needed for frequent switching events. In practice, it serves as a drop-in replacement in many 8903-series panelboards, helping maintain system continuity while preserving existing mounting footprints, terminal connections, and interlock expectations. For project planners and installers, the R47370D7 option provides a proven, standards-aligned solution for centralized lighting control that aligns with Schneider Electric’s Class 8903 specifications and broad distributor availability.