Enclosure Thermal Management

The internal temperature of an electrical enclosure must be closely monitored and controlled in order to protect sensitive equipment housed inside. The changing temperature outside of an enclosure can require heating or cooling applications for the inside of an enclosure to prevent components from freezing or overheating and to prevent condensation from forming. 

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. Thermoelectric coolers have a cold side that is placed inside the enclosure and a hot side placed outside the enclosure with fans that circulate the cool air throughout the enclosure.

Enclosure fans draw filtered, ambient air into the enclosure at the same time as internal, heated air is blown out as exhaust. An exhaust filter can be used with a filter fan to aid in pressurization of the enclosure, reducing the chance of unfiltered air entering back into the enclosure. A filter fan should be located in the bottom third of the enclosure and the filtered exhaust grill placed as high as possible on the opposite side of the fan.

Enclosure heaters are necessary when an outdoor enclosure is located where temperatures dip well below freezing and heating is required to keep the internal temperature of the enclosure within an optimal operating range for the electrical components. Heaters also help to reduce condensation, with relative humidity inside the enclosure ideally kept below 65 percent. A heater should be placed near the bottom of the enclosure to allow natural convection of heat distribution, but some larger enclosures could require a fan to distribute heat. 

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$159.60
Mechanical thermostat for controlling filter fans and heaters. Registers surrounding air and can switch inductive and resistive loads via snap-action contact. Clips for vertically mounting on 35 mm DIN rail (EN 60715). An integrated resistor (RF) can be connected to improve the switch temperature differenceanical thermostat for controlling filter fans and heaters.
$159.60
Mechanical thermostat for controlling filter fans and heaters. Registers surrounding air and can switch inductive and resistive loads via snap-action contact. Clips for vertically mounting on 35 mm DIN rail (EN 60715). An integrated resistor (RF) can be connected to improve the switch temperature differenceanical thermostat for controlling filter fans and heaters.
$509.60
Hazardous Location Heater Thermostat. Two thermostat options available with a 50 F / 10 C or 68 F / 20 C set point
$856.70
Electric Heater thermostatically controlled, fan-driven heater that maintains a stable enclosure temperature. Fan draws cool air from the bottom of the enclosure and passes this air across the thermostat and heating element before being released into enclosure cavity. Heated air is discharged through the top of the heater unit.
$856.70
Electric Heater thermostatically controlled, fan-driven heater that maintains a stable enclosure temperature. Fan draws cool air from the bottom of the enclosure and passes this air across the thermostat and heating element before being released into enclosure cavity. Heated air is discharged through the top of the heater unit.
$371.80
Touch Safe Heater protects electrical, mechanical equipment from low temperatures, condensation, and corrosion. Maintains stable enclosure temperatures by using natural convection resulting in current circulation of warm air.
$257.40
Touch Safe Heater protects electrical, mechanical equipment from low temperatures, condensation, and corrosion. Maintains stable enclosure temperatures by using natural convection resulting in current circulation of warm air.
$127.53
Stainless steel frame and mesh with 0.13 (3 mm) holes to keep large pests and debris from entering and clogging filter media.
$118.69
Stainless steel frame and mesh with 0.13 (3 mm) holes to keep large pests and debris from entering and clogging filter media.
$112.84
Stainless steel frame and mesh with 0.13 (3 mm) holes to keep large pests and debris from entering and clogging filter media.
$103.74
Stainless steel frame and mesh with 0.13 (3 mm) holes to keep large pests and debris from entering and clogging filter media.
$740.60
Fan trays are a versatile solution to cooling card cages and racks. Redundant cooling with optional failure detection makes this air mover the obvious choice for sensitive equipment. Minimal rack space and repositionable fans are suited to today’s smaller enclosures.
$1033.20
Fan trays are a versatile solution to cooling card cages and racks. Redundant cooling with optional failure detection makes this air mover the obvious choice for sensitive equipment. Minimal rack space and repositionable fans are suited to today’s smaller enclosures.
$791.00
Fan trays are a versatile solution to cooling card cages and racks. Redundant cooling with optional failure detection makes this air mover the obvious choice for sensitive equipment. Minimal rack space and repositionable fans are suited to today’s smaller enclosures.
$791.00
Fan trays are a versatile solution to cooling card cages and racks. Redundant cooling with optional failure detection makes this air mover the obvious choice for sensitive equipment. Minimal rack space and repositionable fans are suited to today’s smaller enclosures.
$105.42
FDA approved, blue silicone gasket that is easily replaceable.
$96.04
FDA approved, blue silicone gasket that is easily replaceable.
$83.30
FDA approved, blue silicone gasket that is easily replaceable.
$73.78
FDA approved, blue silicone gasket that is easily replaceable.
$700.00
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$449.40
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$449.40
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$494.20
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$417.20
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$417.20
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$425.60
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$371.00
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$371.00
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$343.00
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$327.60
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$327.60
Protects filter fan and exhaust grill from standard washdown procedures. Meets Type 4/4X standards when used with HF or TFP Type 12 Filter Fans and Grilles. Hinge allows the shroud to be opened at a 45-degree angle for easy filter replacement, allows for easy and complete removal for cleaning. Only reduces filter fan airflow by 10 percent.
$516.10
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$566.80
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$708.50
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$679.90
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$462.80
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$1081.60
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$972.40
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$357.50
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$917.80
Filter Grille Panels add valuable ventilation to a rack for either inlet or exhaust air. Used alone, filter grille panels allow adequate air flow on natural convection applications or in conjunction with an air moving device to provide filtered air intake.
$1340.30
Thermal filter boxes are high volume air movers that require minimal enclosure space. Fans can be mounted internally or externally, and used for either intake or exhaust. Inlet Guard, Outlet Guard, Power Cord, 5-15 plug available on catalog numbers ending with “M” only. Permanently lubricated ball bearing motors.
$1192.10
Thermal filter boxes are high volume air movers that require minimal enclosure space. Fans can be mounted internally or externally, and used for either intake or exhaust. Inlet Guard, Outlet Guard, Power Cord, 5-15 plug available on catalog numbers ending with “M” only. Permanently lubricated ball bearing motors.
$1027.00
Thermal filter boxes are high volume air movers that require minimal enclosure space. Fans can be mounted internally or externally, and used for either intake or exhaust. Inlet Guard, Outlet Guard, Power Cord, 5-15 plug available on catalog numbers ending with “M” only. Permanently lubricated ball bearing motors.
$984.10
Thermal filter boxes are high volume air movers that require minimal enclosure space. Fans can be mounted internally or externally, and used for either intake or exhaust. Inlet Guard, Outlet Guard, Power Cord, 5-15 plug available on catalog numbers ending with “M” only. Permanently lubricated ball bearing motors.
$917.80
Thermal filter boxes are high volume air movers that require minimal enclosure space. Fans can be mounted internally or externally, and used for either intake or exhaust. Inlet Guard, Outlet Guard, Power Cord, 5-15 plug available on catalog numbers ending with “M” only. Permanently lubricated ball bearing motors.
$880.10
Thermal filter boxes are high volume air movers that require minimal enclosure space. Fans can be mounted internally or externally, and used for either intake or exhaust. Inlet Guard, Outlet Guard, Power Cord, 5-15 plug available on catalog numbers ending with “M” only. Permanently lubricated ball bearing motors.
$410.80
Hoffman 89139592R HR16 Replacement Filters
$1223.30
HR Top-Mount Filter Fans Bolt in place to ensure a tight seal. Terminal block connections.