Description NEMA 4 (IP66) thermostat control systems operate Cabinet Cooler® units only when internal temperatures approach set limits, providing efficient enclosure cooling and purge. Systems use a vortex tube to convert compressed air into cold air with no moving parts, include a 5-micron automatic drain water/dirt filter separator and a cold air distribution kit to direct airflow to general circulation or specific hot spots. Units are UL Listed and CE compliant.
Applications - Programmable controllers
- Line control cabinets
- Motor control centers
- Relay panels
- NC/CNC systems
- Modular control centers
- CCTV cameras
- Computer cabinets
- Cold laser housings
- Electronic scales
Advantages - Low cost
- Compact design
- Cooling capacities up to 5,600 Btu/hr (1,641 W)
- Quiet operation
- Fast installation (mounts through standard electrical knockout)
- Maintains NEMA 4 integrity (IP66)
- No CFCs, no moving parts (maintenance free)
- Stabilizes enclosure temperature and humidity
- Eliminates fans and filters that draw contaminated air
Models (Thermostat Control) - NEMA 4 (IP66)Model | Btu/hr. (Watts)
4804 | 275 (80)
4808 | 550 (162)
4815 | 1,000 (293)
4825 | 1,700 (498)
4830 | 2,000 (586)
4840 | 2,800 (821)
4850 | 3,400 (997)
4860 | 4,000 (1,171)
4870 | 4,800 (1,406)
4880 | 5,600 (1,641)
Models (Thermostat Control) - 240V variants4804-240 | 275 (80)
4808-240 | 550 (162)
4815-240 | 1,000 (293)
4825-240 | 1,700 (498)
4830-240 | 2,000 (586)
4840-240 | 2,800 (821)
4850-240 | 3,400 (997)
4860-240 | 4,000 (1,171)
4870-240 | 4,800 (1,406)
4880-240 | 5,600 (1,641)
Models (Thermostat Control) - 24VDC variants4804-24VDC | 275 (80)
4808-24VDC | 550 (162)
4815-24VDC | 1,000 (293)
4825-24VDC | 1,700 (498)
4830-24VDC | 2,000 (586)
4840-24VDC | 2,800 (821)
4850-24VDC | 3,400 (997)
4860-24VDC | 4,000 (1,171)
4870-24VDC | 4,800 (1,406)
4880-24VDC | 5,600 (1,641)
Performance (summary)Model group | Btu/hr. | Watts | Sound Level (dBA)
4804 (and variants) | 275 | 80 | 59*
4808 (and variants) | 550 | 162 | 67*
4815 (and variants) | 1,000 | 293 | 73
4825 (and variants) | 1,700 | 498 | 80
4830 (and variants) | 2,000 | 586 | 80
4840 (and variants) | 2,800 | 821 | 82
4850 (and variants) | 3,400 | 997 | 84
4860 (and variants) | 4,000 | 1,171 | 84
4870 (and variants) | 4,800 | 1,406 | 84
4880 (and variants) | 5,600 | 1,641 | 85
*With optional cold muffler installed. Cooling capacity measured at 100 PSIG (6.9 BAR) supply pressure.
How it works Compressed air enters the vortex-tube-powered Cabinet Cooler® and is separated into hot and cold streams. The hot air is muffled and exhausted to atmosphere; the cold air is directed into the cabinet via the cold air distribution kit. Displaced hot air exhausts through a cabinet air exhaust, providing cooling and purge without introducing outside air into the panel.
Other details - Includes: cooler, solenoid valve and thermostat (for thermostat-control systems), 5-micron automatic drain filter/separator, and cold air distribution kit.
- Thermostat: factory set at 95°F (35°C), typically holds ±2°F (1°C) inside the cabinet.
- Materials: aluminum construction with a 303 stainless steel vortex tube (NEMA 4 units). NEMA 4X variants use stainless steel for corrosive environments.
- Mounting: mounts through drilled hole or standard electrical knockout; side-mount kits available to maintain NEMA rating where required.
- Cooling performance: provides approximately a 54°F (30°C) temperature drop from supply air at 80 PSIG (5.5 BAR); elevated inlet temperature or lower inlet pressure reduces capacity.
- Filtration: 5 micron automatic drain water & dirt filter standard; if oil is present in compressed air, add a coalescing (oil removal) filter.
- Cold Air Distribution Kit: vinyl tubing, clips and fittings to direct cold air to circulate or hot spots.
- ETC (Electronic Temperature Control): optional digital ETC provides precise control, LED readout of internal temperature, and activates solenoid when setpoint is exceeded. ETC units are RoHS and CE compliant.
Features / Technical specifications - Series name: NEMA 4 Cabinet Cooler® Systems (Thermostat Control)
- Manufacturer / Brand: EXAIR
- Model family examples: 4804, 4808, 4815, 4825, 4830, 4840, 4850, 4860, 4870, 4880 (and -240, -24VDC, -ETC variants)
- Cooling capacity range: 275 to 5,600 Btu/hr (80 to 1,641 W)
- Typical sound levels: 59–85 dBA depending on model and options (cold muffler reduces noise)
- Thermostat factory setpoint: 95°F (35°C); typical control accuracy ±2°F (1°C)
- Supply pressure reference for published capacity: 100 PSIG (6.9 BAR); typical temp drop of ~54°F (30°C) at 80 PSIG (5.5 BAR)
- Standard filtration: 5 micron automatic drain water & dirt filter separator
- Materials: aluminum body; 303 stainless steel vortex tube; 4X variants use stainless steel suitable for corrosive environments
- Approvals / Compliance: UL Listed and CE compliant
- Includes cold air distribution kit (tubing, clips, fittings)
- Mounting: standard electrical knockout or drilled hole; side mount kits available to maintain NEMA rating
- ETC options: digital ETC with internal thermocouple, LED readout and push-button setpoint; ETC variants available for retrofit or included configurations