Enclosure Heaters

Enclosure heating is sometimes required to keep internal temperatures within the operating range of electrical components, especially when an enclosure is installed outside in an area where ambient temperatures dip well below freezing. More importantly, heating is needed to reduce moisture and related corrosion. The goal of enclosure heating is to keep the relative humidity inside below 65%. A consistent temperature helps guarantee optimal operating conditions and prevent condensation. Optimal performance is achieved by placing the heater near the bottom of the enclosure to allow natural convection for heat distribution. Larger enclosures often require fan heaters to distribute the heat throughout the enclosure.

Hoffman Heaters protect mechanical and electrical equipment from low temperatures, condensation and corrosion. The heaters maintain stable enclosure temperatures by using natural convection resulting in current circulation of warm air. Hoffman Electric Heaters are fan-driven, thermostatically controlled heaters that maintain a stable enclosure temperature. The fan draws cool air from the bottom of the enclosure and passes the air across the thermostat and heating element before releasing it into the enclosure cavity. Heated air is discharged through the top of the heater unit.

Pfannenberg Heaters with Thermostats are designed to protect electrical components from low temperatures, condensation and corrosion. The built in thermostat allows the heater to be set to the precise temperature required for the application. Pfannenberg Mini Radiant Heaters are ideal for small outdoor enclosures and Pfannenberg FLH Heaters are ideal for larger electrical enclosures.

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$107.90
Pfannenberg 17000305317 ◦Easy Mounting allows unit to connected to a standard DIN rail without tools◦3 different performance-based models from 10 W to 30 W. Choose the total heat to be distributed based on your calculated requirements◦Compact design easily installs into areas that have a limited installation space◦Rugged design for consistent reliability over a long period of time◦UL Recognized to NITW2 standards for easy integration into UL 508A panels
$93.60
Pfannenberg 17000205317 ◦Easy Mounting allows unit to connected to a standard DIN rail without tools◦3 different performance-based models from 10 W to 30 W. Choose the total heat to be distributed based on your calculated requirements◦Compact design easily installs into areas that have a limited installation space◦Rugged design for consistent reliability over a long period of time◦UL Recognized to NITW2 standards for easy integration into UL 508A panels
$74.10
Pfannenberg 17000105317 ◦Easy Mounting allows unit to connected to a standard DIN rail without tools◦3 different performance-based models from 10 W to 30 W. Choose the total heat to be distributed based on your calculated requirements◦Compact design easily installs into areas that have a limited installation space◦Rugged design for consistent reliability over a long period of time◦UL Recognized to NITW2 standards for easy integration into UL 508A panels
$782.60
Pfannenberg 17080010407 ◦Unit can be directly mounted within the enclosure without the need for DIN Rails◦Built in thermostat allows for precise temperature control◦Integrated fan switch allows circulating fan to run continuously or only when the unit is actively heating◦Best temperature guaranteed to avoid excessively low temperatures or excessively high humidity◦Standard performance ratings from 125 to 800 Watts ensure that the units will be compatible with common heater requirements◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels
$748.80
Pfannenberg 17080015407 ◦Unit can be directly mounted within the enclosure without the need for DIN Rails◦Built in thermostat allows for precise temperature control◦Integrated fan switch allows circulating fan to run continuously or only when the unit is actively heating◦Best temperature guaranteed to avoid excessively low temperatures or excessively high humidity◦Standard performance ratings from 125 to 800 Watts ensure that the units will be compatible with common heater requirements◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels
$614.90
Pfannenberg 17040010407 ◦Unit can be directly mounted within the enclosure without the need for DIN Rails◦Built in thermostat allows for precise temperature control◦Integrated fan switch allows circulating fan to run continuously or only when the unit is actively heating◦Best temperature guaranteed to avoid excessively low temperatures or excessively high humidity◦Standard performance ratings from 125 to 800 Watts ensure that the units will be compatible with common heater requirements◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels
$572.00
Pfannenberg 17040015407 ◦Unit can be directly mounted within the enclosure without the need for DIN Rails◦Built in thermostat allows for precise temperature control◦Integrated fan switch allows circulating fan to run continuously or only when the unit is actively heating◦Best temperature guaranteed to avoid excessively low temperatures or excessively high humidity◦Standard performance ratings from 125 to 800 Watts ensure that the units will be compatible with common heater requirements◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels
$513.50
Pfannenberg 17020010407 ◦Unit can be directly mounted within the enclosure without the need for DIN Rails◦Built in thermostat allows for precise temperature control◦Integrated fan switch allows circulating fan to run continuously or only when the unit is actively heating◦Best temperature guaranteed to avoid excessively low temperatures or excessively high humidity◦Standard performance ratings from 125 to 800 Watts ensure that the units will be compatible with common heater requirements◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels
$491.40
Pfannenberg 17020015407 ◦Unit can be directly mounted within the enclosure without the need for DIN Rails◦Built in thermostat allows for precise temperature control◦Integrated fan switch allows circulating fan to run continuously or only when the unit is actively heating◦Best temperature guaranteed to avoid excessively low temperatures or excessively high humidity◦Standard performance ratings from 125 to 800 Watts ensure that the units will be compatible with common heater requirements◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels
$484.90
Pfannenberg 17012510407 ◦Unit can be directly mounted within the enclosure without the need for DIN Rails◦Built in thermostat allows for precise temperature control◦Integrated fan switch allows circulating fan to run continuously or only when the unit is actively heating◦Best temperature guaranteed to avoid excessively low temperatures or excessively high humidity◦Standard performance ratings from 125 to 800 Watts ensure that the units will be compatible with common heater requirements◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels
$443.30
Pfannenberg 17012515407 ◦Unit can be directly mounted within the enclosure without the need for DIN Rails◦Built in thermostat allows for precise temperature control◦Integrated fan switch allows circulating fan to run continuously or only when the unit is actively heating◦Best temperature guaranteed to avoid excessively low temperatures or excessively high humidity◦Standard performance ratings from 125 to 800 Watts ensure that the units will be compatible with common heater requirements◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels
$510.90
Pfannenberg 17040010007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$494.00
Pfannenberg 17040015007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$430.30
Pfannenberg 17025010007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$416.00
Pfannenberg 17025015007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$283.40
Pfannenberg 17015005007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$219.70
Pfannenberg 17010005007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$201.50
Pfannenberg 17007505007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$183.30
Pfannenberg 17006005007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$158.60
Pfannenberg 17004505007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$130.00
Pfannenberg 17003005007 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Larger FLH 250 and FLH 400 Heaters include a fan to help circulate the heat for even distribution◦Rugged design for consistent reliability over a long period of time◦UL listed quick connects save time and money when installing◦UL Recognized for easy integration into UL 508A panels
$790.40
Pfannenberg 17099810034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$726.70
Pfannenberg 17099710034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$709.80
Pfannenberg 17099715034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$660.40
Pfannenberg 17080710034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$646.10
Pfannenberg 17080715034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$613.60
Pfannenberg 17065710034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$598.00
Pfannenberg 17065715034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$549.90
Pfannenberg 17040710034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$534.30
Pfannenberg 17040715034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$471.90
Pfannenberg 17020710034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$455.00
Pfannenberg 17020715034 ◦Flexible Mounting allows unit to be direct mounted or connected to a standard DIN rail without tools◦Touch-safe outer housing stays cool and safe to touch during operation◦Built in thermostat allows for precise temperature control◦UL listed quick connects save time and money when installing◦compact design is the same for all 200W to 1200W heat options◦Intergrated fan moves air across heater elements to provide quick, efficient heating◦PTC Heater technology prevents overheating for safe operation◦UL Recognized to NITW2 & NITW8 standards for easy integration into UL 508A panels.
$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.
$2993.20
Hoffman DAHHL6002A
$2993.20
Hoffman DAHHL6001A
$2224.60
Hoffman DAHHL4002A
$2224.60
Hoffman DAHHL4001A
$2245.60
Hoffman DAHHL300AC
$1825.60
Hoffman DAHHL200AC
$1059.80
Hoffman DAHHL801AC Electric Heater 115V 100W. Protect mechanical, electrical and electronic equipment from low temperatures, condensation and corrosion with this thermostatically controlled, fan-driven heater.
$1113.00
Hoffman DAHHL501AC
$806.00
Hoffman DAH8002B Electric Heater 230V 800W. Protect mechanical, electrical and electronic equipment from low temperatures, condensation and corrosion with this thermostatically controlled, fan-driven heater that maintains a stable enclosure temperature.
$711.10
Hoffman DAH4002B Electric Heater 230V 400W. Protect mechanical, electrical and electronic equipment from low temperatures, condensation and corrosion with this thermostatically controlled, fan-driven heater that maintains a stable enclosure temperature.
$613.60
Hoffman DAH2002A Electric Heater 230V 200W. Protect mechanical, electrical and electronic equipment from low temperatures, condensation and corrosion with this thermostatically controlled, fan-driven heater that maintains a stable enclosure temperature.