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Galaxy Series 240 VDC Nominal Input Pure Sine Wave DC-AC Inverters


  • Pure Sine Wave Output
  • Extremely Rugged Construction Suitable For Harsh Environments
  • High Reliability – MTBF Exceeds 100,000 hours
  • Overload, Overvoltage, and Overtemp Protected
  • MTTR below 30 minutes
  • Transformer-Isolated For High Inrush Loads
  • Withstands Highly Reactive Load
  • Tight Voltage and Frequency Regulation
  • Custom Voltages and Frequencies Available
  • Conformal Coated PCBs and All Stainless Hardware


The transformer-isolated Galaxy Series Rugged Inverters are designed for harsh environment, military, steel mills, aluminum mills, cranes, and other harsh environment applications. They feature an optional advanced Internal Suppression Filter Network (ISFN) to suppress the significant transients usually associated with these types of conditions, and can be built to meet MIL-STD-810, MIL-S-901, MIL-STD-1472, MIL-STD-461, MIL-STD-167 and other standards optionally. Transformer-isolated topology makes these Inverters suitable for very high inrush loads, such as motors and compressors. These models utilize the most durable components, offering maximum field-proven reliability for severe environment and high reliability applications such as:

  • Steel and Aluminum Mills
  • Cranes
  • Military Applications: Including HMMWV, UAV, Shipboard, Submarine, Aircraft, Mobile Power Units, Shelters, Transportable Systems, Tactical Systems, Ground Support, and more
  •  Heavy-Duty Industrial Applications
  • Demanding Commercial Applications
  • Communications Systems
  • Utility Applications
  • MIL-STD-810
  • MIL-S-901
  • MIL-STD-167


  • Input Voltage: 210 – 280 VDC (Extended range available)
  • Output Voltage: See Table
  • Frequency: 50 Hz, 60 Hz, 400 Hz (+/-0.5%)
  • Frequency Regulation: +/-0.5% N.L. to F.L.
  • Voltage Regulation: +/-1.5% N.L. to F.L.
  • Efficiency: Approximately 80% (depending on model)
  • Reactive Load: 0.75 Lead to 0.75 Lag
  • Distortion: 5% THD, 3% Single Harmonic
  • Overload: 125% for 5 minutes
  • Overload Protection Range: Automatic overload & short circuit protection
  • Sync & Phase Lock Range: +/-3 Hz, Typical (50/60 Hz models)
  • Transient Response: Approx. 1/4 cycle recovery to 95% of nominal
  • Operating Temp: -20°C to +50°C Standard -40°C to +71°C Optional
  • Cooling: By internal DC brushless fan
  • Vibration: Normal shipping and handling
  • Shock: 20g, 11 mS half sinewave
  • Humidity: To 95% RH non-condensing
  • EMI: Designed to meet FCC Part 15, Class A, Can meet MIL-STD-461 with additional filtering


  • Ruggedization against high shock, vibration and humidity
  • MS Connector Mates
  • Shock Mounts
  • Floor Mounts
  • Internal Transfer Switch (Static or Electromechanical)
  • High IP Protection for front / rear panels including louvers on all intake and exhaust, as well as fully gasketed breakers, switches, and indicators
  • Input Volt and Amp Meter Set (available on select models)
  • Elapsed Time Meter (available on select models)
  • Environmental Stress Screening Services