Electrical Enclosure Cooling

The internal temperature of an electrical enclosure must be closely monitored and controlled in order to protect sensitive equipment housed inside. Electrical equipment is susceptible to high temperatures and can result in shortened life expectancy of components and equipment failure. Unwanted heat can come from internal sources ( the components themselves) and external sources (environmental conditions). There are four main methods for enclosure cooling: air conditioners, thermoelectric coolers, compressed air coolers and air-to-air heat exchangers.

Enclosure air conditioners use chemical refrigerants, compressors, evaporators, condensers and fans to cool the inside of an enclosure. They create a closed loop system for cooling, which circulates the air inside the enclosure without mixing with outside air.

Enclosure thermoelectric coolers are solid-state heat pumps that use the Peltier Effect. This occurs when a direct current (DC) is passed through two different semiconductors, causing one side to get colder while the other side gets hotter. The cold side of the thermoelectric cooler is placed inside the enclosure and the hot side is placed outside the enclosure. Fans are used to circulate cool air throughout the enclosure.

Enclosure compressed air ac coolers are devices that use a compressed, filtered air stream and spin it into a high-speed vortex. This vortex splits the air into a hot stream of air and a cold stream of air. The cold stream is placed into the enclosure which displaces the warm air inside and exhausts it with the hot air stream out of the enclosure.

Enclosure heat exchangers or air to air exchangers use a heat pipe filled with a type of refrigerant liquid that boils when absorbing heat from the hot  air of the enclosure. The heated vapor moves to the cooler end of the pipe, which is outside of the enclosure, expelling it into cooler ambient air. The vapor is changed back to a liquid and moves back towards the warmer end of the heat pipe to start the process again.

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$19893.90
Hoffman T-Series Large Capacity Outdoor Enclosure Air Conditioner. Stock models equipped with head pressure control for lowambient operation, compressor heater, coated condenser coil, malfunction switch, thermostat and heater package. R134A earth-friendly refrigerant. Models for 115, 230 and 460 VAC power input. UL Listed to save customers time and money with agency approvals (some models UL recognized). Outdoor model operating temperature range from -40 F/-40 C to 131 F/55 C. Exterior and fully recessed mounting options on many models. Compact footprint to minimize real estate and maximize capacity. Reliable mechanical thermostat on enclosure side of the unit. Dual condenser-side air movers for performance redundancy.
$7341.10
SpectraCool Narrow Indoor/Outdoor Enclosure Air Conditioner.
$386.40
Hoffman EXDBDM25SS6 Hazardous Locations Breather Drain Hazardous Location Breather Drains prevent moisture build-up within hazardous approved enclosures while maintaining enclosure UL Type rating. Drains are to be used when an enclosure is subject to fluctuations in temperature which can lead to the formation of condensation and a subsequent moisture build-up. These drains allow air within an enclosure to breathe with the surrounding atmosphere, preventing condensation and any potential damage to electrical equipment.
$263.20
Hoffman EXDBDM20SS6 Hazardous Locations Breather Drain Hazardous Location Breather Drains prevent moisture build-up within hazardous approved enclosures while maintaining enclosure UL Type rating. Drains are to be used when an enclosure is subject to fluctuations in temperature which can lead to the formation of condensation and a subsequent moisture build-up. These drains allow air within an enclosure to breathe with the surrounding atmosphere, preventing condensation and any potential damage to electrical equipment.
$165.20
Hoffman EXEBDM25SS6 Hazardous Locations Breather Drain Hazardous Location Breather Drains prevent moisture build-up within hazardous approved enclosures while maintaining enclosure UL Type rating. Drains are to be used when an enclosure is subject to fluctuations in temperature which can lead to the formation of condensation and a subsequent moisture build-up. These drains allow air within an enclosure to breathe with the surrounding atmosphere, preventing condensation and any potential damage to electrical equipment.
$122.22
Hoffman EXEBDM20SS6 Hazardous Locations Breather Drain Hazardous Location Breather Drains prevent moisture build-up within hazardous approved enclosures while maintaining enclosure UL Type rating. Drains are to be used when an enclosure is subject to fluctuations in temperature which can lead to the formation of condensation and a subsequent moisture build-up. These drains allow air within an enclosure to breathe with the surrounding atmosphere, preventing condensation and any potential damage to electrical equipment.
$4734.63
Rittal 3130115 Air to Air Heat Exchanger 90 W/C 115V 50/60HZ TYPE 12 SIDEMTG, RAL 7035, STEEL
$4887.93
Rittal 3130100 Air to Air Heat Exchanger 90 W/C 230V 50/60HZ TYPE 12 SIDEMTG, RAL 7035, STEEL
$3558.28
Rittal 3129115 Air to Air Heat Exchanger 60 W/C 115V 50/60HZ TYPE 12 SIDEMTG, RAL 7035, STEEL
$3599.12
Rittal 3129100 Air to Air Heat Exchanger 60 W/C 230V 50/60HZ TYPE 12 SIDEMTG, RAL 7035, STEEL
$3254.75
Rittal 3128115 Air to Air Heat Exchanger 45 W/C 115V 50/60HZ TYPE 12 SIDEMTG, RAL 7035, STEEL
$3310.28
Rittal 3128100 Air to Air Heat Exchanger 45 W/C 230V 50/60HZ TYPE 12 SIDEMTG, RAL 7035, STEEL
$2820.86
Rittal 3127115 Air to Air Heat Exchanger 30 W/C 115V 50/60HZ TYPE 12 SIDEMTG, RAL 7035, STEEL
$2908.84
Rittal 3127100 Air to Air Heat Exchanger 30 W/C 230V 50/60HZ TYPE 12 SIDEMTG, RAL 7035, STEEL
$1967.62
Rittal 3126115 Air to Air Heat Exchanger 17 5 W/C 115V 50/60HZ TYPE12 SIDEMTG, RAL 7035, STEEL
$1967.62
Rittal 3126100 Air to Air Heat Exchanger 17 5 W/C 230V 50/60HZ TYPE12 SIDEMTG, RAL 7035, STEEL
$12015.82
Rittal 3387540 AC 18430BTU 460V 3 PH 60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$10160.80
Rittal 3386540 AC 12630BTU 460V 3 PH 60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$9416.80
Rittal 3385540 AC 8270BTU 400V 2 PH 50/60HZ TYPE12 STE ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$8883.32
Rittal 3385510 AC 8270BTU 115V 50/60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$8924.16
Rittal 3385500 AC 8270BTU 230V 50/60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$7491.71
Rittal 3384540 AC 6000BTU 400V 2 PH 50/60HZ TYPE12 STE ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$6300.81
Rittal 3384510 AC 6000BTU 155V 50/60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$6339.97
Rittal 3384500 AC 6000BTU 230V 50/60HZ TYPE12 STEEL ROOFMTG, BLUE ECOMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE
$6347.95
Rittal 3383540 AC 4460BTU 400V 2 PH 50/60HZ TYPE12 STE ROOFMTG, BLUE ECOMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE
$5778.80
Rittal 3383510 AC 4460BTU 115V 50/60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$6096.87
Rittal 3383500 AC 4460BTU 230V 50/60HZ TYPE12 STEEL ROOFMTG, BLUE ECOMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE
$4794.78
Rittal 3382510 AC 1740BTU 115V 50/60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$4972.70
Rittal 3382500 AC 1740BTU 230V 50/60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$7705.43
Rittal 3375510 Air to Water Heat Exchanger 17060BTU 115V 50/60HZ TYPE 12 SIDEMTG, COMFORT CONTROL, RAL 7035, STEEL
$6972.91
Rittal 3375500 Air to Water Heat Exchanger 17060BTU 230V 50/60HZ TYPE 12 SIDEMTG, COMFORT CONTROL, RAL 7035, STEEL
$6494.96
Rittal 3375100 Air to Water Heat Exchanger 17060BTU 230V 50/60HZ TYPE 12 SIDEMTG, BASIC CONTROL, RAL 7035, STEEL
$5395.26
Rittal 3374500 Air to Water Heat Exchanger 10236BTU 230V 50/60HZ TYPE 12 SIDEMTG, COMFORT CONTROL, RAL 7035, STEEL
$4907.51
Rittal 3374110 Air to Water Heat Exchanger 10236BTU 115V 50/60HZ TYPE 12 SIDEMTG, BASIC CONTROL, RAL 7035, STEEL
$4922.20
Rittal 3374100 Air to Water Heat Exchanger 10236BTU 230V 50/60HZ TYPE 12 SIDEMTG, BASIC CONTROL, RAL 7035, STEEL
$4432.78
Rittal 3373500 Air to Water Heat Exchanger 6824BTU 230V 50/60HZ TYPE 12 SIDEMTG, COMFORT CONTROL, RAL 7035, STEEL
$4245.21
Rittal 3373100 Air to Water Heat Exchanger 6824BTU 230V 50/60HZ TYPE 12 SIDEMTG, BASIC CONTROL, RAL 7035, STEEL
$10919.48
Rittal 3366540 AC 5800BTU 460 3 PH 60HZ TYPE12 STEEL SLIMLINE, SIDEMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER,CONDENS
$10017.15
Rittal 3366500 AC 5800BTU 230V 50/60HZ TYPE12 STEEL SLIMLINE, SIDEMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER,CONDENS
$3434.21
Rittal 3364500 Air to Water Heat Exchanger 3412BTU 230V 50/60HZ TYPE 12 SIDEMTG, COMFORT CONTROL, RAL 7035, STEEL
$2959.62
Rittal 3364100 Air to Water Heat Exchanger 3412BTU 230V 50/60HZ TYPE 12 SIDEMTG, BASIC CONTROL, RAL 7035, STEEL
$3558.28
Rittal 3363500 Air to Water Heat Exchanger 1706BTU 230V 50/60HZ TYPE 12 SIDEMTG, COMFORT CONTROL, RAL 7035, STEEL
$2546.70
Rittal 3363100 Air to Water Heat Exchanger 1706BTU 230V 50/60HZ TYPE 12 SIDEMTG, BASIC CONTROL, RAL 7035, STEEL
$4633.36
Rittal 3361510 AC 2660BTU 115V 60HZ TYPE12 STEEL SIDEMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER
$4835.62
Rittal 3361500 AC 2660BTU 230V 50/60HZ TYPE12 STEEL SIDEMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER
$7906.15
Rittal 3359540 AC 3080BTU 400V 2 PH 50/60HZ TYPE12 STE ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$6958.22
Rittal 3359510 AC 3080BTU 115V 50/60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.
$6816.39
Rittal 3359500 AC 3080BTU 230V 50/60HZ TYPE12 STEEL ROOFMTG, COMFORT CONTR, RAL7035, NANOCOATED CONDENSER, CONDENSATE EVAP.