| Additional Information | : | 240 V Capacitor Voltage, 55 uF Capacitor, S51 ANSI Designation |
| Amperage Rating | : | 0.9 to 3.8 A |
| Circuit Type | : | CWA |
| Frequency Rating | : | 60 Hz |
| Height | : | 4-3/4 in |
| Input Wattage | : | 400 W |
| Lamp Type | : | High Pressure Sodium |
| Lamp Wattage | : | 400 W |
| Length | : | 4-1/4 in |
| Minimum Starting Temperature | : | -40 deg F |
| Model | : | HPS |
| Voltage Rating | : | 120/208/240/277/480 V |
| Width | : | 2.56 in |
KEYSTONE offers a variety of HID ballast kits in high-pressure sodium, probe and pulse start metal halide ballast options. Known for dependability and superior efficiency, KEYSTONE's HID ballasts are perfectly suited for even the most demanding HID lighting applications. KEYSTONE utilizes sophisticated quality control and manufacturing processes to guarantee solid performance in the field. Each kit includes the HID ballast pre-wired to a properly rated capacitor and ignitor (if required), mounting hardware and a visual installation guide. KEYSTONE's HID ballast kit options range from 35 W to 1500 W. They also come in single, quad and 5-tap configurations to offer maximum input voltage flexibility. In addition to HID ballast kits, KEYSTONE also offers metal halide F-can ballasts. These F-can ballasts are ideal for environments that require a silent operation.
KEYSTONE Ballast Kit, Model: HPS, High Pressure Sodium Lamp, 400 W Lamp, 400 W Input Wattage, 120/208/240/277/480 V, 0.9 to 3.8 A, 60 Hz, -40 deg F Minimum Starting, CWA, 4-1/4 in Length, 2.56 in Width, 4-3/4 in Height, Additional Information: 240 V Capacitor Voltage, 55 uF Capacitor, S51 ANSI Designation