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Air to Air Heat Exchanger for Outdoor & Telecom Cabinets

Our air to air heat exchangers provide high-efficiency, energy-saving thermal management for outdoor cabinets, telecom enclosures, battery cabinets, power distribution boxes, and other sealed electronic housings.
Designed for harsh outdoor environments, these units offer reliable cooling without refrigerants, making them ideal for remote telecom sites, 5G base stations, and industrial outdoor equipment.
  • AE30HA4E

  • Cytech

  • Telecom, Battery, Integrated

  • IP 55, IP 65

  • Wall Mount

Availability:
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Product Description

What Is an Air to Air Heat Exchanger?

An air to air heat exchanger is a closed-loop cooling system that transfers heat from inside the cabinet to the outside environment using a high-efficiency plate or heat pipe core.
It operates without compressors or refrigerants, providing silent, maintenance-free cooling.


▼DC48v 325w/k dual control model air to air heat exchanger ▼


Benefits for Telecom & Outdoor Applications


  • No Dust Ingress – Perfect for Outdoor Electronics

Closed-loop system maintains a sealed cabinet environment.

  • Zero Refrigerant – Eco-Friendly Cooling

Meets global environmental standards and reduces maintenance.

  • Stable Performance for Remote Sites

Designed for unmanned, remote, and extreme-weather locations.

  • Reduced OPEX for Operators

Low energy use + maintenance-free = significantly lower operation cost.



Comparison: Air to Air vs. Air Conditioner Cooling


  • Energy Usage Differences

Air to air systems use up to 80% less energy.

  • Maintenance Requirements

Almost zero maintenance — no filters, no refrigerant leaks.

  • Cost and Reliability Analysis

Air to air heat exchangers reduce long-term costs and improve system uptime.


How Cross-Flow Heat Exchange Works


The internal hot air passes through a heat exchanger core where heat is transferred to the outdoor airflow, maintaining stable internal cabinet temperature.

working principle of plate heat exchanger (2)


working principle of plate heat exchanger



The 3D cross section view of plate air to air heat exchanger 

▼for 325w/k cooling,dual control ▼


air to air plate heat exchanger 3D view (2)       air to air plate heat exchanger 3D view




Technical Features of Our Air to Air Heat Exchangers


  • IP55 / IP65 Cabinet Protection

Completely prevents dust, moisture, insects, and pollutants from entering.

  • High Airflow & Efficient Heat Dissipation

Optimized fans ensure stable airflow even in hot climates.

  • Aluminum Heat Pipe or Plate Heat Exchanger Core

Available for different thermal performance requirements.

  • DC/AC Fan Options for Flexible Integration

12V DC, 24V DC, 48V DC, and 230V AC options for any installation.


DC48v 325w/k cabinet heat exchanger Data sheet 


Name

Cabinet air to air heat exchanger

Model

H325NA0E / H325HA0E

Mounting Method

Semi-embedded Mounting,Side-mount / Door-mount / Top-mount options available.

Power Supply -48VDC
Cooling capacity 325w/k
Power capacity 450w
Max Noise Level 65dB(A)
IP Grade IP55
Net Weight 54kg
Working Temperature Range -15℃~+65℃         Typical: -40°C to +70°C (customizable).
Dimensions(H*W*D) 1350*770*240(mm)
Color RAL7035
Lifetime 10 Years

Note:@L35/L35 is Internal temperature 35℃, ambient temperature 35℃



External  Dimensions


Outer dimension of DC Power Cabinet Heat Exchanger



Installation and Wiring


Please design and install the product according to the installation holes drawings below

Installation and wiring of DC Power Cabinet Heat Exchanger



Wiring


Equipped with a display LED in internal side of product, can display running, alarm information and parameter


Wiring of DC325wk cabinet heat exchanger Data sheet



Definition of Electrical TerminalDefinition of electrical terminal of DC325wk cabinet heat exchanger Data sheet


No.

Symbol

Definition

No.

Symbol

Definition

1

RS485+ Communication port A+ 9 RTN DC power- Positive

2

RS485- Communication port B- 10 -48V DC power- Negative

3

ALR-NC Hardware alarming output like fans and sensors failure 11 PE PE

4

ALR-COM


5

ALR-NC1 High temperature alarming output


6 ALR-COM1


7 I/O Control signal input:on/off dry switch type


8 I/O




Attention:

▶It is strictly prohibited to turn the air conditioner upside down or lie flat during transportation or handling.

▶Install vertically and make sure the polarity of wiring is correct and firm.

▶To avoid objects blocking the air circulation at the inlet and outlet of internal and external circulation.

▶If the protective cover is added, the vent area of the cover shall not be less than that of the air conditioner.


Application

Applications in Outdoor Cabinets & Telecom Enclosures


Our air to air heat exchangers support a wide range of industries.

  • Outdoor Telecom Base Stations

Ensures stable operation of BBU, RRU, transmission equipment.

  • Battery Cabinets & Energy Storage Systems

Keeps lithium-ion batteries at optimal temperature.

  • 5G/4G Remote Radio Units (RRU)

Protects sensitive electronics from overheating.

  • Street Cabinets & Network Distribution Boxes

For fiber networks, IoT deployments, and traffic control systems.




Options

More Cooling Options for air to air heat exchanger


Model Voltage Cooling Capacity(W/K)  Power Consumption 
IP Grade  Heater (W) Optional  Internal Air flow (m3/h) Weight(kgs) Noise(dbA)
H08NA0E 48VDC±20% 80w/k 70 IP55 1000 470 17 65
H12NA03 48VDC±20% 120w/k 180 IP55 1000 620 32 69
H18NA0E 48VDC±20% 180w/k 330 IP55 1000 980 45 69
H26NA0E 48VDC±20% 260w/k 400 IP55 1000 1650 65 70


​Advantage

Why Choose Our Air to Air Heat Exchangers


Our products are designed specifically for outdoor telecom applications with strong cooling performance and durability.

  • High Efficiency Heat Transfer for Outdoor Enclosures

Our heat exchanger cores use premium aluminum plates for maximum thermal conductivity.

  • Maintenance-Free, Filter-Free Design

No filters required — reducing operational cost and maintenance visits.

  • Long Lifespan for Harsh Outdoor Environments

Resistant to dust, rain, UV, salty air (optional coating) and extreme temperatures.

  • Low Energy Consumption for Remote Telecom Sites

Ideal for battery-powered and solar-powered telecom cabinets.



Contact Us for a Quote for Air to Air Heat Exchangers


Fast Delivery & Global Shipping

We support telecom operators, system integrators, and enclosure manufacturers worldwide.

Support for Telecom, Power, and IoT Projects

Send us your cabinet size and cooling requirement — we will recommend the best model.




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