OF
The Challenge
A datacenter equipment manufacturer required an IP65-rated power distribution unit capable of handling 100kW in high-humidity environments. The PDU needed to dissipate heat from high-current bus bars and protection devices while maintaining complete ingress protection. Previous attempts at sealing the enclosure resulted in thermal failures during summer months. The design also required UL 508A listing for industrial control panels.
Our Approach
- Analyzed heat generation from 400A bus bars and circuit breakers
- Designed sealed enclosure with external heat exchanger system
- Implemented heat pipes to transfer internal heat to external fins
- Selected IP65-rated cooling fans with filtered air intake
- Optimized internal component placement for thermal zoning
- Validated IP65 rating through third-party testing
Results
IP65
IP Rating
Full dust and water jet protection
-20 to +55°C
Ambient Range
Extended operating range
UL 508A
Certification
Listed industrial control panel