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Enclosure Thermal Management

Managing the temperature within electrical enclosures is a vital part of ensuring their reliable operation and long-term safety. This is especially true for enclosures that contain delicate electronic components. The goal of a thermal management program is to keep the temperature steady and within a defined safe range. Failure to do so could lead to the kind of overheating that could compromise the safety and reliability of the enclosure’s contents. There are many ways to cool something, but the methods tend to fit into just a few broad categories.

Industrial air conditioners are often employed for the thermal regulation of enclosures, especially in high-temperature outdoor conditions or where the electrical devices generate a substantial heat load. These air conditioning systems cool the air within the enclosure by transferring the hot air to the outside. In robust designs intended for industrial environments, the air conditioners can operate effectively in a large ambient temperature range and in many weather conditions.

Found 946 items
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Found 946 items
Manufacturer
Hoffman (679)
Rittal (259)
Stahlin (8)
Component
Air Conditioner Accessories (15)
Air Filter (2)
Air Vent (2)
Assembly Impeller (5)
Axial Fan (16)
Blower (2)
Blower & Louver (1)
Blower Assembly (26)
Blower Base (2)
Blower Capacitor (4)
Sub Component
Blower Package Exhaust Grille (1)
Blue E+ Fan And Filter Unit (60)
Box Fan (4)
Capacitor (1)
Cover (1)
Cover Plate (1)
Door For Installing Cooling Modules (1)
Exhaust Filter Package (1)
Exhaust Grille (18)
Exhaust Package (9)
Air Flow Component Type
Dual Heat-Cooling Thermostat (1)
Fan Speed Control (2)
Fan Thermostat (1)
Finger Guard (16)
Grille (120)
Hood (2)
Type 1 Foam Washable (1)
Type 12 Synthetic Disposable (2)
Air Flow Component Size
1" (2)
10" (35)
10" X 5" (1)
10" X 6" (1)
11" X 11" (4)
11" X 20" (2)
11" X 9" (3)
12" X 12" (2)
13" (37)
13" X 13" (4)
Air Flow Component Voltage
115 Volt (61)
120 Volt (17)
230 Volt (46)
24 Volt (25)
240 Volt (3)
250 Volt (9)
370 Volt (4)
460 Volt (2)
48 Volt (13)
480 Volt (1)
(CL)
COMES IN PACKS OF 6 (1)
AC Voltage
400 VAC (1)
Air Flow Component Composition
304 Stainless Steel (6)
Aluminum (3)
Fiberglass (1)
Galvanized Steel (7)
Mild Steel (2)
Plastic (119)
Silicone (4)
Stainless Steel (36)
Steel (48)
Thermoplastic (21)
Air Flow Component Shape
Rectangle (67)
Round (30)
Square (175)
Fan Environment
Indoor (119)
Outdoor (18)
Outdoor-Indoor (1)
Fan Filter Type Included
Filter Fan Shroud (4)
Type 1 Foam Washable (14)
Type 12 Synthetic Disposable (6)
Type 4/4X Pest Screens (4)
Fan Mount
Side-Mount (108)
Top-Mount (8)
Fits Package
AOEFG118 (1)
AOFF118 (1)
AVK Louver (10)
Exhaust Package (29)
Filter (4)
HF05 (7)
HF09 (4)
HF10 (7)
HF10 Filter Fans (2)
HF13 (7)
Heater Voltage
0-275 Volt (2)
108-132 Volt (1)
110-132 Volt (1)
110-240 Volts (7)
110-265 Volt (4)
120 Volt (11)
207-253 Volt (2)
250 Volt (5)
Heater Watts
10 Watts (3)
100 Watts (4)
110 Watts (1)
1300 Watts (2)
15 Watts (1)
150 Watts (1)
20 Watts (2)
200 Watts (3)
30 Watts (3)
300 Watts (1)
Vent Cover Compostion
Plastic (21)
Stainless Steel (39)
Vent Exhaust Package
Exhaust Package (29)
Vent Includes Filter Type
Aluminum (6)
None (7)
Stainless Steel (4)
Vent IP Rating
IP 54 (14)
IP 55 (4)
Vent Kit
Vent Kit (4)
Line
Global IEC (17)
WEATHERFLO (5)
Number of Devices Controlled
1 Device (3)
2 Devices (1)
Normally In Stock
Rittal 3311016 Fan module for LCP Rack/Inline CW
Free U.S Ground shipping
$2251.98
$1876.65
Normally In Stock
Rittal 3237067 Chopped-fibre filter mat
Free U.S Ground shipping
$47.65
$39.71
Normally In Stock
Rittal 3237055 Chopped-fibre filter mat
Free U.S Ground shipping
$152.35
$126.96
Normally In Stock
Rittal 3237054 Chopped-fibre filter mat
Free U.S Ground shipping
$29.42
$24.52
Normally In Stock
Rittal 3399915 Filter housing for fan-and-filter units
Free U.S Ground shipping
$259.74
$216.45
Normally In Stock
Rittal 3399914 Filter housing for fan-and-filter units
Free U.S Ground shipping
$234.43
$195.36
Normally In Stock
Rittal 3399913 Filter housing for fan-and-filter units
Free U.S Ground shipping
$169.32
$141.10
Normally In Stock
Rittal 3399912 Filter housing for fan-and-filter units
Free U.S Ground shipping
$141.41
$117.84
Normally In Stock
Rittal 3399911 Filter housing for fan-and-filter units
Free U.S Ground shipping
$106.04
$88.37
Normally In Stock
Rittal 3237021 Blanking cover for fan-and-filter units / outlet filters
Free U.S Ground shipping
$62.68
$52.23
Normally In Stock
Rittal 3201941 Security clip for Blue e+ fan-and-filter units / outlet filters
Free U.S Ground shipping
$76.30
$63.58
Normally In Stock
Rittal 3201940 Security clip for Blue e+ fan-and-filter units / outlet filters
Free U.S Ground shipping
$76.30
$63.58
Normally In Stock
Rittal 3245918 Blue e+ fan-and-filter unit with EC technology
Free U.S Ground shipping
$1240.51
$1033.76
Normally In Stock
Rittal 3245910 Blue e+ fan-and-filter unit with EC technology
Free U.S Ground shipping
$1147.12
$955.93
Normally In Stock
Rittal 3245908 Blue e+ fan-and-filter unit with EC technology
Free U.S Ground shipping
$1237.61
$1031.34
Normally In Stock
Rittal 3245900 Blue e+ fan-and-filter unit with EC technology
Free U.S Ground shipping
$1147.12
$955.93
Normally In Stock
Rittal 3245810 Blue e+ fan-and-filter unit EMC
Free U.S Ground shipping
$2602.20
$2168.50
Normally In Stock
Rittal 3245800 Blue e+ fan-and-filter unit EMC
Free U.S Ground shipping
$2299.30
$1916.08
Normally In Stock
Rittal 3244900 Blue e+ fan-and-filter unit with EC technology
Free U.S Ground shipping
$807.32
$672.77
Normally In Stock
Rittal 3244810 Blue e+ fan-and-filter unit EMC
Free U.S Ground shipping
$1418.30
$1181.92
Normally In Stock
Rittal 3244800 Blue e+ fan-and-filter unit EMC
Free U.S Ground shipping
$1375.52
$1146.27
Normally In Stock
Rittal 3244740 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$754.46
$628.72
Normally In Stock
Rittal 3244718 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$651.74
$543.12
Normally In Stock
Rittal 3244710 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$699.76
$583.13
Normally In Stock
Rittal 3244708 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$757.25
$631.04
Normally In Stock
Rittal 3244700 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$699.76
$583.13
Normally In Stock
Rittal 3243900 Blue e+ fan-and-filter unit with EC technology
Free U.S Ground shipping
$710.60
$592.17
Normally In Stock
Rittal 3243810 Blue e+ fan-and-filter unit EMC
Free U.S Ground shipping
$1097.47
$914.56
Normally In Stock
Rittal 3243800 Blue e+ fan-and-filter unit EMC
Free U.S Ground shipping
$1037.70
$864.75
Normally In Stock
Rittal 3243718 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$651.25
$542.71
Normally In Stock
Rittal 3243710 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$603.04
$502.53
Normally In Stock
Rittal 3243708 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$650.72
$542.27
Normally In Stock
Rittal 3243700 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$603.04
$502.53
Normally In Stock
Rittal 3243400 Blue e+ outlet filter EMC
Free U.S Ground shipping
$434.80
$362.33
Normally In Stock
Rittal 3243308 Blue e+ outlet filter
Free U.S Ground shipping
$148.38
$123.65
Normally In Stock
Rittal 3243300 Blue e+ outlet filter
Free U.S Ground shipping
$123.91
$103.26
Normally In Stock
Rittal 3241900 Blue e+ fan-and-filter unit with EC technology
Free U.S Ground shipping
$612.06
$510.05
Normally In Stock
Rittal 3241810 Blue e+ fan-and-filter unit EMC
Free U.S Ground shipping
$1011.05
$842.54
Normally In Stock
Rittal 3241800 Blue e+ fan-and-filter unit EMC
Free U.S Ground shipping
$981.00
$817.50
Normally In Stock
Rittal 3241724 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$582.46
$485.38
Normally In Stock
Rittal 3241718 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$479.17
$399.31
Normally In Stock
Rittal 3241710 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$443.81
$369.84
Normally In Stock
Rittal 3241708 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$479.57
$399.64
Normally In Stock
Rittal 3241700 Blue e+ fan-and-filter unit
Free U.S Ground shipping
$443.81
$369.84
Normally In Stock
Rittal 3240900 Blue e+ fan-and-filter unit with EC technology
Free U.S Ground shipping
$588.34
$490.28

More Information about Enclosure Thermal Management

Using heat exchangers is another effective solution. They work by transferring heat from inside the enclosure to the ambient air outside. The heat exchanger uses the temperature difference to cool the electrical components of the enclosure. This method works well in applications where the air outside the enclosure is cooler than the desired temperature of the inside.

There are other options for cooling besides those already discussed. One of them is the vortex cooler—it uses compressed air to provide what is essentially spot cooling. This makes it well-suited for some specific application or requirement where cooling is needed in a certain place or to a certain degree. Another option is the thermoelectric cooler. While not as common as some of the other options we've mentioned here, it is very reliable with a low operating cost, largely because it doesn't really have any moving parts and needs almost no maintenance.

Whereas the ambient temperature may dip at times, the enclosure's internal temperature must remain stable. When maintaining such a stable environment is necessary, using heaters is advisable. Heaters can keep enclosures at a desired temperature so that moisture doesn't condense in any uncontrolled corners of the enclosure.

Managing the temperature and humidity inside an enclosure is essential to ensure that the equipment contained within operates reliably and has a long service life. Venting devices and filter fans are among the thermal management solutions that use natural convection to draw cool air into an enclosure, circulating stale, warmer air out. They do an excellent job of maintaining the enclosed environment within the necessary parameters.

Industrial Enclosure Accessories and Modifications

Common modifications or accessories that are used to enhance electrical cabinets.

Lighting kits. Lighting kits are often used in outdoor applications. There are many different styles of lighting kits that can be used, but LEDs have become the preferred lighting solution in the past several years.

Pressure switches. Pressure switches operate on a spring and react to the cabinet door opening and closing. They can be used for lights, intrusions alarms and exhaust fans.

Passive air vents. Passive air vents allow natural air circulation to flow through a cabinet providing proper ventilation.

Enclosure fans. Enclosure air fans are used when more ventilation is required. The size of the fan will depend on the size of the enclosure as well as the amount of air that needs to be circulated.

Air conditioners. Air conditioners are used when ambient air circulation is inadequate to cool the cabinet. The air conditioner size will depend on the enclosure size, ambient air temperature and heat generated within the cabinet.

Heaters. Heaters are used when a cabinet is located in areas that may be exposed to cold temperatures.

Locking mechanisms. Locking mechanisms are used to secure cabinets.

Conduit hole seals. Conduit hole seals are used on cabinets that have holes that need to be plugged after conduit has been removed.