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CS A 03 E D
chunshucooling
92100
Chunshu Mini 48V DC Enclosure Air Conditioner is a compact full-DC inverter cooling unit designed for small industrial cabinets, telecom cabinets, power cabinets, outdoor equipment enclosures and DC-powered control systems.
With a -48VDC power supply, full DC compressor, DC fans and intelligent controller, the unit provides stable closed-loop cooling for sensitive electronic and electrical components installed in compact outdoor or indoor enclosures.
It is especially suitable for applications where space is limited, power consumption must be controlled, and the cabinet needs reliable protection against heat, dust, humidity and outdoor temperature changes.
Front view
Rear view
| Item | Description |
|---|---|
| Product Type | Mini DC Enclosure Air Conditioner |
| Model | CS A 03 E D |
| Cooling Capacity | 300W |
| Power Supply | -48VDC ±20% |
| Application | Industrial cabinets, telecom cabinets, power cabinets, outdoor enclosures |
| Installation | Semi-embedded cabinet mounting |
| Protection Grade | IP55 |
| Working Temperature | -40°C to +55°C |
| Refrigerant | R134a |
| Communication | RS485 / Modbus optional |
Typical Applications
This mini DC air conditioner is not limited to battery cabinet cooling. It is widely suitable for many small cabinet and enclosure applications where electronic components generate heat and require a stable operating temperature.
Typical applications include industrial control cabinets, telecom outdoor cabinets, power distribution cabinets, traffic control cabinets, monitoring equipment cabinets, solar power cabinets, remote control boxes and small battery enclosures.
| Application | Short Text |
|---|---|
| Industrial Control Cabinets | Cooling for PLC, VFD, servo drive and automation control panels. |
| Telecom Cabinets | 48VDC cooling for BTS, 5G, fiber optic and network equipment cabinets. |
| Power Cabinets | Temperature control for UPS, inverter, RTU and distribution cabinets. |
| Traffic Cabinets | Cooling for traffic signal, railway signal and roadside monitoring cabinets. |
| Solar Cabinets | DC cooling for PV inverter, hybrid power and off-grid control cabinets. |
| Monitoring Cabinets | Cooling for sensors, weather stations, radar and data collection systems. |
| Equipment Enclosures | Closed-loop cooling for compact outdoor electronic enclosures. |
| Battery Cabinets | Cooling for small battery and DC backup power cabinets. |
Small cabinets often face serious thermal challenges. Internal electronic components generate heat, while outdoor environments bring high temperature, dust, rain, humidity and solar radiation.
Using only a fan may not be enough. A fan exchanges air with the outside environment, which may bring dust, moisture, salt mist or polluted air into the cabinet.
Chunshu mini DC enclosure air conditioner uses a closed-loop refrigeration system. The internal cabinet air and external ambient air are separated, allowing heat to be removed while keeping the cabinet interior cleaner and more stable.
The unit uses a full DC design, including DC compressor, DC fans and intelligent controller. Compared with traditional fixed-speed cooling units, the DC inverter system provides lower starting current, smoother operation and better energy efficiency.
This is especially important for DC-powered cabinets, telecom sites, battery backup systems and remote outdoor equipment.
The air conditioner is designed for -48VDC power systems, making it suitable for telecom, power, solar, battery backup and industrial DC applications.
It can operate directly from a DC power source without requiring a separate AC power supply, simplifying cabinet system design.
The mini cabinet design is suitable for applications where installation space is limited. It can be mounted on cabinet doors or side panels using a semi-embedded installation method.
The compact structure makes it suitable for small outdoor cabinets, narrow equipment enclosures and integrated control boxes.
The internal and external air circuits are separated. Heat inside the cabinet is transferred to the outside through the refrigeration system, while dust, humidity and polluted outdoor air remain outside the enclosure.
This design helps protect sensitive electronics, control modules, communication devices and power components.
The unit is designed for harsh cabinet environments and can operate under wide ambient temperature conditions from -40°C to +55°C.
It is suitable for outdoor installations, remote sites, industrial environments and regions with seasonal temperature changes.
The built-in controller supports automatic temperature control, alarm protection and communication options such as RS485 / Modbus.
It can be integrated into cabinet monitoring systems for remote status checking and system management.
With IP55 protection design, the unit is suitable for outdoor cabinets and equipment enclosures exposed to dust, rain and environmental changes.
It helps maintain stable cabinet operation in demanding industrial and outdoor conditions.
| Component | Design | Customer Benefit |
|---|---|---|
| DC Compressor | R134a DC inverter compressor | Soft start, stable cooling, lower power impact |
| DC Fan System | DC fan with PWM speed control | Adjustable airflow and energy-saving operation |
| Main Controller | Intelligent PID control logic | Accurate temperature control and system protection |
| Communication | RS485 / Modbus optional | Easy integration with cabinet monitoring systems |
| Protection Logic | Multiple alarm and protection functions | Improved reliability and easier maintenance |
DC PID Intelligent control board
DC Hitachi R134A Compressor
DC Fan
The air conditioner uses two separated air circuits:
Internal Air Circuit
Hot air inside the cabinet enters the evaporator side, is cooled by the refrigeration system, and returns to the cabinet as cold air.
External Air Circuit
Ambient air passes through the condenser side, removes heat from the refrigeration system, and discharges hot air outside the cabinet.
This structure prevents external dust, moisture and polluted air from entering the cabinet, making it more reliable than direct ventilation fans in harsh environments.
This product can also be positioned as part of a mini DC cabinet air conditioner series.
| Cooling Capacity | Recommended Application |
|---|---|
| 300W | Small control cabinets, sensor cabinets, compact telecom enclosures |
| 500W | Telecom cabinets, outdoor electrical cabinets, small power cabinets |
| 600W / 800W | Industrial control cabinets, traffic cabinets, inverter cabinets |
| 1000W | Larger outdoor cabinets, battery cabinets, power equipment enclosures |
For accurate model selection, please provide cabinet size, internal heat load, ambient temperature, installation method and power supply requirements.
| Item | Parameter |
|---|---|
| Model | CS A 03 E D |
| Cooling Capacity | 300W |
| Rated Voltage | -48VDC |
| Voltage Range | -48VDC ±20% |
| Rated Current | Please refer to final datasheet |
| Rated Power | Please refer to final datasheet |
| Refrigerant | R134a |
| Mounting Type | Semi-embedded mounting |
| Protection Grade | IP55 |
| Working Temperature | -40°C to +55°C |
| Control Mode | Intelligent temperature control |
| Communication | RS485 / Modbus optional |
| Application | Industrial cabinets, telecom cabinets, power cabinets, outdoor equipment enclosures |
The mini DC enclosure air conditioner can be installed on the cabinet door or side panel. The semi-embedded structure reduces external protrusion and helps save installation space.
Before installation, please confirm the following information:
| Required Information | Purpose |
|---|---|
| Cabinet dimensions | To confirm installation space |
| Internal heat load | To select correct cooling capacity |
| Ambient temperature | To evaluate high-temperature performance |
| Cabinet material and thickness | To confirm mounting method |
| Power supply | To confirm DC voltage compatibility |
| IP protection requirement | To confirm outdoor suitability |
| Communication requirement | To confirm RS485 / Modbus integration |
| Cabinet Fan | Mini DC Enclosure Air Conditioner |
|---|---|
| Exchanges air with outside environment | Closed-loop cooling, internal and external air separated |
| May bring dust and moisture into the cabinet | Keeps polluted outdoor air outside |
| Cooling effect depends on ambient temperature | Active compressor cooling |
| Limited performance in hot environments | Stable temperature control under high ambient conditions |
| Suitable for simple ventilation | Suitable for sensitive electronics and industrial equipment |
For cabinets installed in dusty, humid, hot or outdoor environments, an enclosure air conditioner provides better protection than direct ventilation.
Compact mini cabinet design
-48VDC power supply
Full DC inverter cooling system
DC compressor and DC fans
Soft start and low starting current
Closed-loop cooling design
Internal and external air circuits separated
Suitable for small industrial and outdoor cabinets
IP55 protection design
Wide temperature operation from -40°C to +55°C
RS485 / Modbus communication optional
Multiple protection and alarm functions
Suitable for telecom, power, industrial and outdoor equipment applications
Industrial automation
Telecom and communication
Power distribution
Smart grid
Solar and off-grid energy
Railway and traffic systems
Environmental monitoring
Outdoor equipment manufacturing
Battery backup systems
Remote control and monitoring stations
To help us recommend the correct cooling solution, please send us the following information:
Cabinet size
Internal heat load
Ambient temperature range
Power supply voltage
Installation method
Cabinet protection grade
Application environment
Communication or alarm requirements
Chunshu can help select a suitable mini DC cabinet air conditioner or provide a customized enclosure cooling solution according to your project requirements.
Chunshu provides mini DC enclosure air conditioners for industrial cabinets, telecom cabinets, power cabinets, outdoor equipment enclosures and battery-related applications.
Contact us with your cabinet size, heat load and working environment. Our team will help you select the right cooling capacity and installation solution.
Contact Chunshu for a Cabinet Cooling Solution
