All Primaries 50/60 Hz.
| Mfr. Part No. | Description |
| 592-9012 | Input Voltage, 120 |
| 592-9013 | Input Voltage, 240 |
| 592-9016 | Input Voltage, 120/240 |
| 592-9017 | Input Voltage, 208/240 |
| 592-9018 | Input Voltage, 120/208/240 |
| T40-24F1 | Input Voltage, 120 |
| T40-24F2 | Input Voltage, 208/240 |
| T40-24F3 | Input Voltage, 120/208/240 |
| T40-24 | Input Voltage, 120/208/240 |
| T50-24F3 | Input Voltage, 120/208/240 |
| T40-24M1 | Input Voltage, 120 |
| T40-24M2 | Input Voltage, 208/240 |
| T40-24M3 | Input Voltage, 120/208/240 |
| T50-24M3 | Input Voltage, 120/208/240 |
| T40-24S1 | Input Voltage, 120 |
| T40-24S2 | Input Voltage, 208/240 |
| T40-24S3 | Input Voltage, 120/208/240 |
| T50-24S3 | Input Voltage, 120/208/240 |
| T50-24C3 | Input Voltage, 120/208/240 |
| T60-24C3 | Input Voltage, 120/208/240 |