Heaters & Thermostats

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Heaters, Thermostats & Hygrostats are geared toward the protection of electronic equipment for customers in many industries and applications, such as:

  • CCTV Surveillance Cameras
  • Power Generation including Backup Power
  • Wind and Solar Power Systems
  • Electrical and Electronic Control Systems
  • Wireless and Broadband Telecommunications Systems
  • Automatic Teller Machines (ATMs)
  • DOT and Traffic Control Systems
  • Parking Control Systems
  • Information Kiosks

The formation of condensation is one of the biggest dangers for electrical enclosures. As long as they are working under load, their own warmth prevents water from condensing. If the process is switched off, the electronics cool down. This is precisely where the function of our control cabinet heaters (radiant heaters and fan heaters) begins to protect. We offer a wide variety of performance classes of FLH control cabinet heaters which are complemented by thermostats and hygrostats from the FLZ series. As a team, they ensure that the temperature inside the control cabinet is always correct and that the formation of condensation is prevented. The control of filterfans by thermostats from the FLZ series represents an intelligent use of filterfans for control cabinet air cooling to suit individual needs. It increases energy efficiency, reduces CO2 emissions and reduces filter maintenance levels. Accordingly the combination with thermostats and hygrostats from the FLZ series offers a better environmental balance through higher energy efficiency. It also results in greater reliability of your production process:

  • Pinpoint distribution and constant temperature in the control cabinet
  • Reduced energy consumption and optimization of the efficiency of the heaters
  • Additional savings on energy, materials and time

Click to download sales literature in pdf format

Radiant & Fan Heaters Radiant heaters are compact and cover a wide operating range. They are used in combination with a thermostat or hygrostat, predominantly for the avoidance of excessively low temperatures or excessively high humidity in the control cabinet and help to avoid the formation of corrosion. Mini-heaters and surface temperature-limited heaters are particularly suitable for use in small housings or for the heating of isolated spots in sensitive areas.

FLH Fan Heaters & FLH -TF Fan Heaters with Thermostat
These radiant heater products are more ideal for use in larger electrical enclosures. They have an integrated fan that assists the natural convection and provides fast and even distribution of the heat. Fan heaters with thermostats are designed to protect electronics from the effects of low temperatures such as corrosion, freezing or condensation, which can damage critical components within a control enclosure.

Thermostats & Hygrostats

Thermostats are used as temperature controllers and, therefore, for the control of filterfans or electrical enclosure heaters. They are available with N.C. (normally closed) / N.O. (normally open) and changeover contacts. In combination with control cabinet heaters you can ensure, besides temperature control, that the control cabinet is ‘artificially’ dehumidified, in particular in outdoor applications. That means that the temperature is kept above the dew point so that no water condenses out of the air, which could lead to short circuits due to the formation of condensation.

Hygrostats switch on electrical enclosure heaters or filterfans when a preset relative humidity is exceeded. The relative humidity is kept above the dew point and the condensation of water on electrical components and the corrosion of unprotected sheet metal is prevented. A new electronic combination device unites the thermostat and hygrostat in one housing.

Mini-Radiant Heaters
Model Part No.
Heater Power
(Watts)
Rated Voltage
Dimensions HxWxD Inches (mm) Download
Data Sheet
FLH 010-M 17001005017
10
115-230 VAC
1.77 x 1.97 x 1.16 (45 x 50 x 29.5)
 
FLH 020-M 17002005017
20
115-230 VAC 1.77 x 2.95 x 1.16 (45 x 75 x 29.5) pdf
FLH 030-M 17003005017
30
115-230 VAC 1.77 x 2.95 x 1.16 (45 x 75 x 29.5)  
 
Radiant Heaters
Model Part No.
Heater Power
(Watts)
Rated Voltage
Dimensions HxWxD Inches (mm) Download
Data Sheet
FLH 045 17004505007
45
115-230 VAC
3.94 x 2.76 x 1.97 (100 x 70 x 50)
 
FLH 060 17006005007
60
115-230 VAC
3.94 x 2.76 x 1.97 (100 x 70 x 50)
 
FLH 075 17007505007
75
115-230 VAC 6.89 x 2.76 x 1.97 (175 x 70 x 50) pdf
FLH 100 17010005007
100
115-230 VAC 6.89 x 2.76 x 1.97 (175 x 70 x 50)  
FLH 150 17015005007
150
115-230 VAC
9.84 x 2.76 x 1.97 (250 x 70 x 50)
 
 
Surface Temperature-Limited Radiant Heaters
Model Part No.
Heater Power
(Watts)
Rated Voltage
Dimensions HxWxD Inches (mm) Download
Data Sheet
FLH-LST 020 17002105017
20
115-230 VAC
5.2 x 2.76 x 1.97 (132 x 70 x 50)
 
FLH-LST 030 17003105017
30
115-230 VAC
6.97 x 2.76 x 1.97 (177 x 70 x 50)
pdf
FLH-LST 050 17005105017
50
115-230 VAC
9.92 x 2.76 x 1.97 (252 x 70 x 50)
 
 
Fan Heaters
Model Part No.
Heater Power
(Watts)
Rated Voltage
Dimensions HxWxD Inches (mm) Download
Data Sheet
FLH 250 17025015007
250
115 VAC
7.34 x 3.35 x 4.09 (186.5 x 85 x 104)
 
FLH 250 17025010007

250

230 VAC
7.34 x 3.35 x 4.09 (186.5 x 85 x 104)  
FLH 400 17040015007
400
115 VAC
8.92 x 3.35 x 4.13 (226.5 x 85 x 105)
pdf
FLH 400 17040010007

400

230 VAC
8.92 x 3.35 x 4.13 (226.5 x 85 x 105)  
FLH 250 SL 17025110007
250
230 VAC
6.71 x 4.98 x 4.06 (170.5 x 126.5 x 103)
 
 
Thermostats    
Model Part No.
Temperature
Control Range
Rated Voltage
Dimensions HxWxD Inches (mm) Download
Data Sheet
FLZ 510 17103000000
0-60ºC
AC or DC
2.52 x 1.46 x 1.81 (64 x 37 x 46)
 
FLZ 510 17103000010
32-140ºF
AC or DC 2.52 x 1.46 x 1.81 (64 x 37 x 46)  
FLZ 520 17111000000
0-60ºC
AC or DC
2.52 x 1.46 x 1.81 (64 x 37 x 46)
pdf
FLZ 520 17111000010
32-140ºF
AC or DC 2.83 x 1.57 x 1.42 (72 x 40 x 36)  
FLZ 530 17121000000
0-60ºC
AC or DC
2.83 x 1.57 x 1.42 (72 x 40 x 36)  
FLZ 530 17121000010
32-140ºF
AC or DC 2.83 x 1.57 x 1.42 (72 x 40 x 36)  
 
Twin Thermostats
Model Part No.
Heater Power
(Watts)
Rated Voltage
Dimensions HxWxD Inches (mm) Download
Data Sheet
FLZ 541 17141000000
0-60ºC
AC or DC
3.17 x 2.32 x 1.5 (80.5 x 59 x 38)
 
FLZ 541 17141000010
32-140ºF
AC or DC 3.17 x 2.32 x 1.5 (80.5 x 59 x 38)  
FLZ 542 17142000000
0-60ºC
AC or DC
3.17 x 2.32 x 1.5 (80.5 x 59 x 38) pdf
FLZ 542 17142000010
32-140ºF
AC or DC 3.17 x 2.32 x 1.5 (80.5 x 59 x 38)  
FLZ 543 17143000000
0-60ºC
AC or DC
3.17 x 2.32 x 1.5 (80.5 x 59 x 38)  
FLZ 543 17143000010
32-140ºF
AC or DC 3.17 x 2.32 x 1.5 (80.5 x 59 x 38)  

 

Hygrostat and Hygrostat-Thermostat
Model Part No.
Relative Humidity
Range
Rated
Voltage
Dimensions HxWxD Inches (mm)

Download DataSheet

FLZ 600 17207000000
40-90% rh
230
2.52 x 1.46 x 1.81 (64 x 37 x 46)  
FLZ 610 17218151000

40-90% rh

115
3.17 x 2.32 x 1.5 (80.5 x 59 x 38)
FLZ 610 17218100000

40-90% rh

230
3.17 x 2.32 x 1.5 (80.5 x 59 x 38)  
 
Fan Heaters With Thermostat
Model Part No.
Heater Power
(Watts)
Rated Voltage
Dimensions HxWxD Inches (mm) Download
Data Sheet
FLH-TF 125 17012515407
125
115VAC
5.5 x 4 x 4.5 (140 x 102 x 114)
 
FLH-TF 125 17012510407 125
230VAC
5.5 x 4 x 4.5 (140 x 102 x 114)  
FLH-TF 200 17020015407
200
115VAC
5.5 x 4 x 4.5 (140 x 102 x 114)  
FLH-TF 200 17020010407 200
230VAC
5.5 x 4 x 4.5 (140 x 102 x 114)
FLH-TF 400 17040015407
400
115VAC
7.5 x 4 x 4.5 (191 x 102 x 114)
 
FLH-TF 400 17040010407 400
230VAC
7.5 x 4 x 4.5 (191 x 102 x 114)  
FLH-TF 800 17080015407
800
115VAC
7.5 x 4 x 4.5 (191 x 102 x 114)  
FLH-TF 800 17080010407 800
230VAC
7.5 x 4 x 4.5 (191 x 102 x 114)