How to choose the right cooling unit for electrical cabinets
Find the right cooling unit to protect electronics and reduce downtime
A correctly sized cooling unit protects the electronics, extends their lifespan and minimizes downtime.
In this guide, we'll go over how to choose the right model – from wall and ceiling mounted to Peltier coolers.
Find the right cooling unit to protect electronics and reduce downtime
A correctly sized cooling unit protects the electronics, extends their lifespan and minimizes downtime.
In this guide, we'll go over how to choose the right model – from wall and ceiling mounted to Peltier coolers.
1. Start with a Needs Analysis
To choose the right model you need to know:
- Heat generation: How much power does the equipment in the cabinet generate?
- Ambient temperature: How warm is the environment where the cabinet is located?
- Protection requirements: How warm is the environment where the cabinet is located?
- Location and design: Is wall, ceiling or semi-recessed mounting best?
2. Wall-mounted cooling units
Advantages:
- Easy installation and service
- Wide capacity range
- Flexible placement
Recommended for:
- Indoor installations
- Cabinets with medium to high heat generation
3. Roof-mounted chillers
Advantages:
- Takes up no space on the cabinet wall
- More even air distribution in the cabinet
- Modern design
Recommended for:
- Tight spaces
- Closely spaced cabinets
4. Semi-built-in chillers
Advantages:
- Discreet design
- Protected assembly
- Low noise level
Recommended for:
- Public environments
- When design and quiet operation are important
5. Peltier cooler
Advantages:
- Quiet operation and vibration-free cooling
- Maintenance-free
- Perfect for smaller enclosures
Recommended for:
- Small applications with low heat load
- Environments where vibration-free operation is required
6. Sizing – avoid over- or under-capacity
For optimal operation:
- Calculate the heat load in the cabinet
- Add a safety margin of 10–15 %
- Use the manufacturer's calculation tool or contact us for help
7. Care and maintenance
- Change or clean filters regularly
- Check seals to maintain correct IP rating
- Document operating times and service intervals
Checklist before buying
- Be aware of the heat development in the cabinet
- Know which mounting method is best suited
- Check if there are any special IP or EMC requirements
- Plan for service and filter replacement
- Ensure correct sizing
FAQ
When do I need a cooling unit?
If the cabinet becomes more than 10 °C warmer than the surrounding environment, or if sensitive equipment is affected by heat, a cooling unit is necessary.
What type of cooling unit is best suited for confined spaces?
Roof-mounted cooling units save space on the sides and provide more even temperature distribution.
How do I size the right cooling unit?
Calculate the heat load in the cabinet and add a safety margin. Our experts will be happy to help you with the calculation.
Do you need help choosing the right IP rating?
Our experts will help you find the right cabinet for your application.
