Navy Galaxy Series 1.5-2.5 KVA Rugged True Online UPS

  • Formally Qualified to MIL-STD-1399, MIL-STD-461, MIL-S-901, MIL-STD-167, MIL-STD-810, and MIL-STD-740
  • Field Proven Reliability
  • Compact Chassis
  • Lithium Iron Phosphate Batteries Available Optionally
  • Double-Conversion UPS Systems
  • Rack-Mount, Double-Conversion UPS Systems
  • Rugged UPS System
  • Military UPS System
  • True Online UPS Technology
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Nova Electric’s rugged Navy Galaxy-Series true online UPS Systems are specifically designed for submarine and shipboard applications in compliance to MIL-STD-1399, MIL-STD-461, MIL-S-901, MIL-STD-167, MIL-STD-810, and MIL-STD-740. These units are in heavy use on the US Virginia Class Submarine, as well as countless other high profile shipboard and submarine applications in US and US-friendly fleets worldwide. This true online UPS series has a three-phase power factor corrected (PFC) input of 115 VAC L-L, 50/60 Hz per MIL-STD-1399 Section 300 Type I and a pure sinewave galvanically isolated output. Output frequency is available in 50, 60, or 400 Hz (specify.)

Model Selection

NGRS11-1.5K60-115(D)-115 1.5 / 1 115VAC L-L 115VAC 11510 min QUOTE
NGRS11-2.5K60-115(D)-115 2.5 / 1.5 115VAC L-L 115VAC12510 min QUOTE
  • Input Voltage: 115 VAC L-L, 50/60 Hz per MIL-STD-1399 Section 300 Type I
    (other voltages available optionally)
  • Input Frequencies available (specify): 50, 60 or 400 Hz
  • Output Voltages Available (specify): 115, 120, 208, 220, 230, or 240 VAC 1Ø
  • Output Frequency (specify): 50, 60 or 400Hz
  • Voltage Regulation: +/- 2% NL to FL
  • Frequency Regulation: 0.1%
  • Harmonic Distortion: 2% THD Typical 5% Max
  • Input Power Factor: 0.99
  • Efficency at full load: 82% typical
  • Overload: 125% for 5 minutes
  • Premium 10 year life wide temp batteries which are sealed, maintenance free, and user replaceable
  • AC & DC Input Circuit Breakes
  • Low Battery Shut Off
  • Overload and Thermal Protection
  • Audible Alarm with Silence Switch
  • Optional EPO
  • Operating Temperature: -20° to +50° C per MIL-STD-810D
  • Storage Temperature Range: -40° to +71° C
  • Humidity: to 95% non-condensing
  • Elevation: 15,000 Ft. (4.572m) operating
  • Audible noise: Less than 55 dBA at 5 ft. (1.5 m)
  • Cooling: Forced air (exhaust at rear) Airflow 200 CFM Maximum
  • EMI: Per MIL-STD-461B/E
  • Vibration: Per MIL-STD-167-1
  • Shock: 20g for 20ms half sinewave per MIL-STD-901C Grade A
  • Structureborne Noise: MIL-STD-740B Grade A
  • System Status: Green/Red
  • Utility Off: Red
  • UPS Off: Red
  • Low Battery: Red
  • Logic Fault: Red
  • UPS Overload: Red
  • Over-Temperature: Red
  • Load on Utility: Red (with XFR SW option)
  • Alarm Contacts: Standard
  • RS 232 or SNMP: Optional


MIL-STD-1399 Section 300B: For Type I apparatus

Additional Ruggedization to meet MIL-STD-901, MIL-STD-167, and MIL-STD-810: This true online UPS System’s construction is extremely robust, and ruggedized throughout. All components and modules within the unit are mounted using additional steel brackets and heavy-duty stainless-steel hardware, which is then further secured using Loctite and RTV where required. All boards are conformal-coated (Acrylic MIL-I-46058 Type R) for maximum resistance to potential condensation and fungus growth. The true online UPS unit was tested and qualified as follows:

MIL-STD-901C for Grade A, Class II Equipment: Shock test with half sinewave, 20ms duration, 15g peak acceleration shock pulse.

MIL-STD-167-1 for Type I Equipment: Vibration test with range of 4 Hz low frequency to 33 Hz high frequency.

MIL-STD-810D: Operating Temperature Tests including High Temperature Test per Procedure II, Method 501.2, Table 501.2-II Ambient Air, 4 Cycles @ 24 Hours per cycle, Low Temperature Test per Procedure II, Method 505.2, Table 505.2-I Region CO, 4 Cycles @ 24 Hours per cycle, and Temperature Shock Test per Procedure I, Method 503.2, between 0-40 degrees Celsius, 4 Cycles @ 24 Hours per cycle.

MIL-STD-740B Structureborne and Airborne Noise: For Grade A Type III Equipment.

Internal EMI Reduction Package to meet MIL-STD-461: The design of this true online UPS system is specifically focused on reducing EMI emissions. The true online UPS contains substantial internal filtering to minimize EMI emissions. Inputs which may be susceptible to transients are protected by several methods, including MOVs. All internal magnetics are shielded with copper and mu-metal to further minimize emissions. The compact rack mount chassis (5.25” High x 19” Wide x 24.125” Deep) is specifically treated with low surface resistivity finishes on the interior. All aluminum parts are treated with clear irridite. The steel parts are treated with zinc plate, followed by a clear chromate. All exterior portions (except for mating surfaces) are then painted with glossy ANSI-61 gray to assure excellent bonding of mating sheet metal parts. All input and output ventilation filters include metal honeycomb-style filters.

MIL-STD-461B Part VI for EMI Class A5: CE01, CE03, CS01, CS02, CS06, CS09, RE01, RE02, RS01, RS02, RS03.

Super-Rugged, Long Life Hawker Energy Batteries: Internal Hawker Energy sealed, maintenance free batteries provide 10 minutes back up time at full load. These batteries are extremely resistant to shock, vibration, and wide temperature ranges. Also, they have a very long service life (8-10 years measured at 25 degrees Celsius ambient temperature) for a minimum of maintenance. The batteries are user replaceable.

Pressure Tests for Submarine Usage: The Navy Galaxy Series true online UPS System was tested to atmospheric pressure within the range of 750-1250 millibars, and maintained standard operation to specification to the following test pressures for 1 hour:
250 millibars above ambient (applied within 30 seconds and released within 30 seconds)
250 millibars below ambient (applied within 30 seconds and released within 30 seconds)
Ambient pressure of 1000 millibars


Navy Galaxy Series 1.5-2.5 KVA Rugged True Online UPS PDF Data Sheet

Navy Galaxy Series 1.5-2.5 KVA Rugged True Online UPS PDF Outline Drawing