| Feature | Specification |
| Model | EA04C |
| Sensing Input Voltage | 160~265 VAC / 300~550 VAC (Single Phase) |
| Power Input Voltage | 90~240 VAC (Single Phase, 2 Wire) |
| Output Voltage | Max 63 VDC @ 240 VAC input |
| Current | Continuous 4A, Intermittent 7A for 10 sec. |
| Resistance | Min. 15 $\Omega$, Max. 100 $\Omega$ |
| Voltage Regulation | < ±1% (with 4% engine governing) |
| Voltage Build-up | Residual voltage at AVR terminal > 5 VAC |
| Thermal Drift | 0.05% per °C change in AVR ambient |
| External Volts Adj. | ±15% with 1K $\Omega$ 1 watt trimmer |
| Unit Power Dissipation | Max. 8 Watt |
| Under Frequency Protection | 50Hz system knee point at 45Hz / 60Hz at 55Hz |