MFG Part Number 43700000108000

AA-250-24-44

Legacy Product

Outdoor Cooler Series Thermoelectric Cooler Assembly

Note: This product is not recommended for new designs. Please use the recommended replacement.
Please click the [Legacy Stock] button to see inventory available.
The recommended replacement is:
      MFG Part Number: 387011578
      Description: AAX-260-24-55
The AA-250-24-44 is an Air-to-Air thermoelectric cooler assembly that uses impingement flow to transfer heat. It offers dependable compact performance by cooling objects via convection. Heat is absorbed and dissipated through high density heat exchangers equipped with air ducted shrouds and brand name fans. The heat pumping action occurs from custom designed thermoelectric modules that achieve a high coefficient of performance (COP) to minimize power consumption. This model has been designed to pass rigorous Telcordia test requirements conducted by our customers such as earthquake resistance, salt, fog, wind-driven rain, high temperature exposure, and dust contaminants. This is due to the selection of world class components such as brand name fans with the highest degree of environmental protection and lifetime guaranteed waterproof connectors heavy duty anodization on the high-density heat sinks overheat protection and double environmental seals for the thermoelectric modules.

Features

  • Wide operating temperature range from -40°C to +55°C
  • Telcordia GR-487-CORE tested and verified by customers when integrated in telecom outdoor enclosures
  • Environmentally friendly solid-state operation
  • No compressor or CFC refrigerants
  • Optional bi-polar thermostatic control

You can interact with the Performance Curves below to estimate the cooling performance by entering the thermal and electrical operating conditions for your application.
Click the [Custom Datasheet] button to create a Customized PDF Datasheet.
Please Note: Actual application performance will vary from calculated values based on actual thermal design characteristics.

Specifications

Heat Transfer Mechanism, Cold Side
Air - Forced Convection
Heat Transfer Mechanism, Hot Side
Air - Forced Convection
Temperature Range (External Ambient)1
-40°C to 55°C
Temperature Range (Internal Enclosure)
-20°C to 55°C
Supply Voltage
24.0 VDC nominal / 28.0 VDC maximum
Current Draw
12.1 A running / 15.1 A startup
Power Supply
290.4 Watts
Performance Tolerance
10%
Hi-Pot Testing
707 VDC
Fan MTBF
70000 hours
Heating2
250 W
Over-Temp Thermostat (Hot and Cold Side Heat Sink)
75°C ± 6°C (accessory)
Sound Level (1 m distance)
63 dBA
Degree of Protection (Unit Internal Side)
IP54
Degree of Protection (Unit External Side)3
IP54
Weight
6.30 kg
Panel Mounting
Through (From External Side)

Mounting Hole Location

Wiring Schematic

Electrical and Thermal Performance

Use the sliders, input fields and [UPDATE] button below to enter your application's electrical and thermal conditions. Use the Graph Y and X Axis buttons to display a variety of performance curves and use the Voltage/Current slider to choose the electrical operating point to display performance.
Click [Custom Datasheet] button to save your results as a Customized PDF Datasheet.

Select Graph Y - Axis

Select Graph X - Axis

Optimum COP
Cooling Power (Qc) = 59.15 Watts
TEM Voltage = 12.86 Volts
TEM Current = 4.24 Amps
TEM COP = 1.08
Power Supply = 54.5 Watts
Power Dissipated (Qh) = 113.69 Watts
Fan Voltage = 24.0 Volts
Fan Current = 3.0 Amps
Maximum Qc
Cooling Power (Qc) = 171.67 Watts
TEM Voltage = 28.12 Volts
TEM Current = 10.01 Amps
TEM COP = 0.61
Power Supply = 281.6 Watts
Power Dissipated (Qh) = 453.3 Watts
Fan Voltage = 24.0 Volts
Fan Current = 3.0 Amps

Electrical Operating Point

Imin: 2.2 A
Imax: 10.0 A

Vmin: 7.5 V
Vmax: 28.1 V
TEC Voltage

TEC Current
Cooling Power (Qc)

Power Supply (Pin)

TEC COP (Qc/Pin)

Power Dissipated (Qh)

Fan Voltage

Fan Current

Thermal Operating Conditions

Cooling
Heating
Ambient High Temperature
Control Temperature
Ambient Low Temperature
Cooling ΔT
Heating ΔT
Click to UPDATE performance after changing thermal operating conditions or switching between heating and cooling mode.

Notes

1Controller function shall not operate the external fan during heating mode.
2Heating capacity is rated at external temperature of -40°C, nominal voltage, and dT = -45°C.
3The highest environmental protection level NEMA 4 (IP55) requires an external shroud and is defined as the protection level for the enclosure.

Any information furnished by Tark and its agents, whether in specifications, data sheets, product catalogues or otherwise, is believed to be (but is not warranted as being) accurate and reliable, is provided for information only and does not form part of any contract with Tark. All specifications are subject to change without notice. Tark assumes no responsibility and disclaims all liability for losses or damages resulting from use of or reliance on this information. All Tark products are sold subject to the Tark Terms and Conditions of sale (including Tark's limited warranty) in effect from time to time, a copy of which will be furnished upon request.

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Revision: 00 Date: 06-01-2022

Print Date: 05-07-2025