400-Watt 4-Tap High Pressure Sodium Replacement Ballast Kit

This Keystone 4 Tap (120/208/240/277-Volt) High Pressure Sodium ballast kit operates one S51 400-Watt High Pressure Sodium lamp. The kit includes ballast, capacitor, mounting brackets and hardware. See the document below for complete specifications.|ANSI designation: S51|Line voltage: 120/208/240/277|Regulation: 10%|Frequency: 60 Hz|Recommended fuse (A): 15/8/8/5|Circuit type: CWA|Insulation class: 180 degree C|Capacitor: 55 degree F|Capacitor voltage rating: 300-Volt|Capacitor temperature rating: 90 degree C|Winding materials: copper/aluminum|Lamp starter: XG-02|Agency certification: RU, cRU|Maximum distance to lamp: 10 ft.