you operate industrial machinery, your control panels are the brain of your operations. When sensitive electronics like PLCs, VFDs, and motor drives are housed inside sealed cabinets, the internal heat generated by these components—combined with high ambient facility temperatures—can quickly push equipment past its thermal limits. Implementing effective NEMA enclosure cooling is not just a preventative measure; it is a critical requirement for avoiding premature component failure, system trips, and costly unplanned downtime.
At Supreme Air Products™, we manufacture industry-leading cooling solutions designed specifically to maintain safe operating temperatures while preserving the integrity of your cabinet’s seal. Our Cabinet Panel Coolers are engineered to provide unparalleled protection and thermal management for your most critical electronics, avoiding the high maintenance and failure rates typically associated with traditional freon-based AC units.
If you are enclosing an electrical panel to protect it from dust, dirt, or water, you cannot simply cut ventilation holes or install standard exhaust fans. Fans merely circulate ambient, potentially contaminated air and often fail to actively reduce the internal temperature. To maintain the specific NEMA rating of the enclosure while keeping the internal components cold, you need an active, sealed cooling solution.
Our Cabinet Panel Coolers utilize highly efficient vortex tube technology. Operating solely on your facility’s standard compressed air, the integrated vortex tube separates the air into hot and cold streams with zero moving parts. The hot air is safely exhausted into the atmosphere through an integrated muffler, while the refrigerated cold air is injected directly into the electrical cabinet. As the cold stream enters, the rising hot air inside the cabinet is gradually purged through the cooler’s built-in pressure release valve. This creates a positive pressure environment that not only actively cools the electronics but also blocks out dust, moisture, and corrosive contaminants.
Selecting the proper NEMA enclosure cooling system depends heavily on your facility’s environmental hazards. We design our stainless steel panel coolers to meet the strictest environmental ratings:
When evaluating NEMA enclosure cooling methods, our vortex tube cabinet coolers offer several distinct operational advantages over traditional mechanical AC units:
Properly sizing your NEMA enclosure cooling system is essential to prevent under-cooling and wasted energy. Our systems are available in a wide range of capacities to match the specific thermal load of your cabinet, from compact 550 BTU units for small panels to robust 5,600 BTU dual systems for heavily loaded enclosures.
Below is the performance and specification data for our standard NEMA 12 and NEMA 4/4X Cabinet Coolers:
| Model No. | Capacity (Btu/hr) | Capacity (Watt/hr) | Air Consumption (SCFM @ 80 PSI) | Air Consumption (SLPM @ 5.5 Bar) | Sound Level (dB) |
|---|---|---|---|---|---|
| CPC0812-1 | 550 | 161 | 8 | 226 | 67* |
| CPC1512-1 | 1,100 | 322 | 15 | 425 | 73* |
| CPC2512-1 | 1,800 | 528 | 25 | 708 | 74* |
| CPC3012-1 | 2,060 | 603 | 30 | 849 | 74* |
| CPC4012-1 | 2,800 | 821 | 40 | 1,132 | 79* |
| CPC5012-1 | 3,400 | 996 | 50 | 1,415 | 74* |
| CPC6012-1 | 4,000 | 1,171 | 60 | 1,698 | 76* |
| CPC7012-1 | 4,800 | 1,406 | 70 | 1,981 | 76* |
| CPC8012-1 | 5,600 | 1,640 | 80 | 2,264 | 77* |
