| 1kW | 1kW | 2kW | 4kW | 6kW | |
| INPUT | – | – | – | – | – |
| Voltage | 120VAC +/- 10% |
240VAC +/- 10% |
208 or 240VAC +/- 10% |
240VAC +10 / -15% |
240VAC +10 / -15% |
| – | 50/60 Hz | 50/60 Hz | 50/60 Hz | 50/60 Hz | 50/60 Hz |
| – | 1 Phase | 1 Phase | 1Phase | 3 Phase | 3 Phase |
| Current | – | – | – | – | – |
| @120v | 15 Amps | – | – | – | – |
| @240v | – | 8.0 Amps | 11.3 Amps | 12.3 Amps | 18.4 Amps |
| Power | 1.6kVa | 1.6kVa | 2.7kVa | 5.1kVa | 7.65kVa |
| – | – | – | – | – | – |
| Output | – | – | – | – | – |
| Current | 6.0 Amps | 6.0 Amps | 11 Amps | 15 Amps | 18.3 Amps |
| Frequency | 40 – 60 kHz | 40 – 60 kHz | 40 – 60 kHz | 40 – 60 kHz | 40 – 60 kHz |
| Power | 1000 Watts | 1000 Watts | 2000 Watts | 4000 Watts | 6000 Watts |
| Voltage | 175 Vrms | 175 Vrms | – | – | – |
| Low(SP1) | – | – | – | 212 Vrms | 261 Vrms |
| Low(SP2) | – | – | – | 310 Vrms | 381 Vrms |
| Low Tap (H2) | – | – | 268 Vrms | 398 Vrms | 489 Vrms |
| Middle Tap (H3) | – | – | 350 Vrms | 508 Vrms | 625 Vrms |
| Hight Tap (H4) | – | – | 440 Vrms | 610 Vrms | 750 Vrms |
| – | – | – | – | – | – |
| Ambient Temp | – | – | – | – | – |
| Maximum | 105°F (40°C) | 105°F (40°C) | 105°F (40°C) | 105°F (40°C) | 105°F (40°C) |