Major500, Major1000 and Major2000 Steel Mill Inverters from MDS Power. Rugged, DC/AC inverter systems with field proven, microprocessor controlled high frequency PWM technology to generate the required output power with pure sine wave output voltage.
The built-in fans provide sufficient airflow for operation without de-rating to the specified temperature. The high frequency conversion enables a compact construction, low weight and high efficiency.
The units have full electronic protection. The input and output are filtered for low noise.
| MODEL | Major500-250 | Major1000-250 | Major2000-250 |
| Input Voltage | 250Vdc nominal. 200-400Vdc operating range | ||
| Input Current | 3A max | 6A max | 13A max |
| Output voltage | 115VAC/60Hz | ||
| Input Connection | Terminal block | ||
| Output Connection | NEMA 5-15R duplex receptacle | NEMA 5-15R duplex receptacle | NEMA 5-20R duplex receptacle |
| Package Dimensions (WxHxL) | 5.2”x5.2”x16” (132 x 132 x 407mm) | 7.4”x 5.2” x 17” (187 x 132 x 432mm) | 14” X 5.2” X 16” (355 x 132 x 406mm) |
| Weight | 14 lbs (6.3 kg) | 18 lbs (8 kg) | 25 lbs (11 kg) |
| MAJOR500 | MAJOR1000 | MAJOR2000 | |
| Input protection | Inrush current limiting. MOV protection. Reverse polarity protection. Varistor. Internal safety fuses. | ||
| Isolation | 2250Vdc Input to chassis / output to chassis | 2100Vdc input to chassis/ 2250Vdc output to chassis | |
| Output neutral is connected to the chassis | |||
| Output Wave Form | Sinusoidal | ||
| Total Harmonic Distortion | Less than 5% at full load | ||
| Line/Load regulation | Max +6 from no load to full load | ||
| Load Crest Factor | Maximum 2.5 at 90% load | ||
| Output Noise | High frequency ripple is less than 500mVrms (20MHz BW) | ||
| Output Overload Protection | Current limiting with short circuit protection. Thermal shutdown with automatic recovery in case of insufficient cooling | ||
| Output Overvoltage Protection | By internal supply voltage limiting at 140Vac | ||
| Efficiency | 90% at full load | 80% at full load | 78% at full load |
| Operating Temperature Range | 0°C to +50°C | ||
| Cooling | By built-in high quality fans | ||
| Environmental Protection | Ruggedizing. Conformal coating | ||
| Shock/Vibration | IEC 61373 Cat 1 A&B | ||
| Humidity | 5 - 95% non condensing | ||
| Standards | Designed to meet C22.2 No. 107.1 - 01. UL 458 and EN 60950-1 | ||
| EMI | EN55022 Class A with margins | ||
| RoHS Compliance | Compliant | ||
| Warranty | Two years | ||
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