Telecom Series (AT) 48VDC Air Conditioners

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Air Conditioners with Capacity of 4,000 through 12,000 Nominal Btu/h

VoltAire Systems AT Series (48 VDC) Air Conditioning Units are designed for high efficiency and high performance heat management of electronic enclosures or equipment.


UL 484 and Type 4 (X)

UL recognized-69

Standard Features

  • UL 484 Recognized
  • UL Type 4 Enclosure Listed
  • High efficiency rotary compressor
  • Coated condenser coil (>6,000 hr salt spray)
  • R134a refrigerant for high ambient operation
  • GR487 compliant
  • Low ambient cooling/head pressure control
  • RoHS Compliant
  • Acrylume corrosion resistant cabinet
  • Compressor crank case heater
  • Stainless steel exterior hardware
  • Stainless steel base and evaporator pan
  • Sloped top
  • Temperature control board with LED status lights, adjustable settings for temperatures and alarms, self-test, and remote temperature sensor
  • Compressor and fan modulation

Optional Features

  • Evaporator side heater element: 500W or 750W
  • Condenser side fan intake filter
  • Custom paint finishes
  • Stainless steel enclosure (UL Type 4X Enclosure)
  • Ethernet controller with digital display


  • Radio base stations
  • Telecom shelters and indoor / outdoor OSP cabinets
  • Network switching rooms and computer rooms
  • Automation control cabinets, process control centers
  • CNC machines
  • Drive cabinets
  • Digital advertisement boards, kiosk display systems
  • Power supply cabinets, battery cabinets, and rectifier cabinets

Proudly Engineered, Tested, and Manufactured in the USA

Technical Data

Performance at 131°F / 131°F
Nominal Capacity (BTU)4,0006,00012,000
Operation Range (°F / °C)-40 to 131 / -40 to 55
Electrical Data
Voltage Input (VDC) ±10%484848
MCA (Amps)12.322.531.7
Unit Dimensions
Height (in/mm)29.6 / 74947.3 / 1201
Width (in/mm)17.4 / 44119.6 / 498
Depth (in/mm)12.9 / 32812.2 / 310
Weight (lbs/kg)74.7 / 33.9109.7 / 50

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