Tag Archives: Current sharing Power Supply

Military Grade Ingress Protected AC/DC Power Supplies – LPM Series

LPM Series, Low Profile, IP65+, Mil-Grade AC/DC Power Supply

ETA-USA has expanded its  line of conduction cooled military grade AC/DC power supplies to provide a low profile solution with improved thermal conduction, 1.80″ height, and multiple mounting locations for heatsinking along 4 planes. Designed rugged and harsh environments and MIL-S 901 D Shock.  Great for indoor and outdoor shipboard applications, covered or exposed ground systems, and airborne applications up to 15,000ft

Units can be built in as little as 6 weeks.

LPM500 Series

  • Input: 95~264 VAC in, 50/60/400 Hz (47~440Hz) operation.
  • In-rush current limited
  • Available voltages: 12, 24, 28, 48
  • Slim profile, 1.8″ height 
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding
  • Conformal coated internal circuitry
  • Mounting: 0.20″ diameter thru holes  along the perimeter of the base for secure mounting and thermal conductivity. Threaded M5 inserts for additional mounting or heatsink expansion
  • >20 msec Hold Up time at full load, 115VAC input
  • DC  Output Regulation: Less than 10 mV voltage drift from 0 to full load (measured at output terminal)
  • Ripple and Noise: <1% peak-to peak

LPM650 Series

  • Input: 95~264 VAC in, 50/60/400 Hz (47~440Hz) operation.
  • In-rush current limited
  • Available voltages: 12, 28, 48
  • Current Sharing (Droop) without additional wiring, up to 5 units in parallel proving 630W each (3,150W total)
  • Slim profile, 1.8″ height 
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding
  • Conformal coated internal circuitry
  • Mounting: 0.20″ diameter thru holes  along the perimeter of the base for secure mounting and thermal conductivity. Threaded M5 inserts for additional mounting or heatsink expansion
  • >20 msec Hold Up time at full load, 115VAC input
  • Ripple and Noise: <1% peak-to peak

LPM1100 Series

  • Input: 95~265 VAC in, 50/60/400 Hz (47~440Hz) operation.
  • In-rush current limited
  • Available voltages: 12, 24, 28, 48, 55
  • Slim profile, 1.8″ height 
  • Aluminum Enclosure with chromate finish for corrosion resistance and low resistance bonding
  • Conformal coated internal circuitry
  • Mounting: 0.20″ diameter thru holes  along the perimeter of the base for secure mounting and thermal conductivity. Threaded M5 inserts for additional mounting or heatsink expansion
  • >20 msec Hold Up time at full load, 115VAC input
  • DC  Output Regulation: Less than 10 mV voltage drift from 0 to full load (measured at output terminal)
  • Ripple and Noise: <1% peak-to peak
  • Optional Remote on/off
  • Optional I2C reporting functions (Vout, Iout, internal temp and humidity)

Mil-Standard Compliances (Without External Circuitry)

  • EMI: Mil-Std 461, CE101, CE102, RE102
  • Susceptibility: CS114, CS115
  • Input Transient Mil-Std 704
  • Power Factor: Mil-Std 1399
  • Environmental: Mil-Std 810, Mil-S-901 D, IP65 standard, up to IP67 possible. 

Available Modifications

  • Non-standard Voltages (LPM500, LPM1100, Inquire with ETA-USA Representative)
  • Hard Anodized Enclosure with EMI Grounding
  • Powder Coat Paint
  • External Voltage Trim (10%, 20%)
  • User Selectable I/O Interface

Contact ETA-USA for Product Availability and CAD Files. 

See Our Full Line of Military and Aviation Power Supplies 

Government Customers- See Our Capability Statement