| Input |
| Voltage |
115 VAC ±10%, single phase for units 2000 VA and below. 200 V single phase, or 208 V three phase for units above 2000 VA. Other inputs available. Contact MajorPower.Com |
| Frequency |
47 - 65 Hz. 47 - 420 Hz input is available. |
| Output |
| Voltage |
120/208 V for 60 Hz and 400 Hz outputs. 220/380 V for 50 Hz output.
Other voltages available. Contact MajorPower.Com |
| Voltage Regulation |
Less than 2% for combined no load to full load
change and rated input voltage change. Voltage regulation also applies for 3-phase Frequency Converters reglardless of load inbalances. |
| Frequency |
Rated output frequency for each model is shown
on chart. For adjustable frequency models, adjustment is on the front panel. (Custom output frequencies are available. Contact MajorPower.Com) |
| Frequency Stability |
Oscillator included in the unit base price. Fixed frequency oscillators are crystal crontrolled with a stability of ±0.05%. Adjustable oscillators are RC controlled and have a stability of ±0.25%. |
| Efficiency |
Between 70 - 80% (typical 75%). At least 70% from 40% of full load to full load. |
| Configuration |
3-Phase, 4-wire neutral floating. (Delta output available as an option). |
| Protective Circuits |
All models are equipped with automatic overload
protection, including short circuit. Automatic reset upon overload
removal. Circuit breaker or fuse on the input and fuse on the output.
Automatic shutdown for input over-voltage, undervoltage. |
| Meters |
Output voltmeter, ammeter, frequency meter &
elapsed time meter offered as options. Adjustable frequency models include digital voltage and frequency meters. |
| Power |
Rated ouput power for each model is shown on chart opposite model number. Maximum power per phase is 1/3 of the 3-phase output. |
| Waveshape |
Sinewave less than 3% THD, 1% max any single frequency. Less than 4% for non-linear loads such as computer power supplies. |
| Load Power Factor |
0.7 lead to 0.7 lag. Continuous 0 lead to 0 lag at full rated output without damage. |
| Peak Output Current |
110%, subcyclic reset. |
| Duty Cycle |
Continuous cuty at full rated output. |
| Environmental |
| Ambient Temperature Range |
Operating 0° to 40°C. Non operating -20°
to +85°C.
Extended temperature range available as an option. |
| Ambient Humidity Range |
±95% to 25°C, ±75% to 40°C and ±45% to
50°C |
| Mechanical |
| Input and Output Terminations |
Rear mounted barrier strips provided. Rear mounted MS connectors and mates provided for all 400 Hz and 350 to 450 Hz output units (3500 VA or less). MS connectors optional on all units. |
| Construction |
Units less than 6KVA are standard 19" Rackmount. Larger units are cabinet models. |
