The AP Labs Thermal Electric ATR Chassis is a 3/4 long ruggedized enclosure designed for five slots of 6U VME or cPCI boards.  The Thermal Electric Cooling chassis is designed for tough sealed environments.  Using thermo-electric technology (TEC), this chassis enables the use of convection cooled boards in a sealed environment.    

 This unit will not only withstand temperature extremes, shock, vibration, humidity and dust, but is also designed to withstand exposure to high-pressure sprays such as those seen by vehicles passing through a tank wash. 

The cooling unit consists of a cold plate, a thermo-electric module, multiple heat sinks, and a fan to assist heat rejection. The cold surface faces the inside of the chassis and the hot side is exposed to the external environment. The thermo-electric module carries the heat from the cold plate to the heat sink. The internal fan drives cold air over the circuit cards and through the card cage as the external fan helps airflow over the external heat sink to assist in the dissipation of heat.