Industrial 71A8493500D HPS Ballast Assembly Kit

Philips Advance 71A8493500D HPS ballast assembly kit is a 400-watt high-pressure sodium ballast with a core-and-coil design housed in an enclosed configuration, intended for compatible HID fixtures. Listed under 71A8493500D, retailers describe it as a 400 W HPS ballast in an S51 Quad configuration, supporting 120/208/240/277 VAC input and drawing approximately 3.8 A at 120 V, 2.2 A at 208 V, 1.9 A at 240 V, and 1.7 A at 277 V. The unit is designed to power a 400 W HPS lamp and is part of Signify/Philips Advance's core-and-coil family, which forms the nucleus for multiple ballast configurations. As an enclosed ballast assembly, it delivers a ready-to-install package that includes the essential ballast components for HID lighting systems requiring 400 W HPS operation.