Due to fluctuating temperatures, condensation can form in enclosures. This can lead to serious malfunctions or, worst case, to component failure. Convection heaters protect against low temperatures, thus preventing the formation of condensation. Furthermore, fan heaters provide air circulation and ensure constant temperatures in enclosures.
Heater Calculation
Heater
PTC Heater HG 140 These heaters are used in enclosures where damage from condensation must be prevented, or where the temperature must be maintained above a minimum value. The aluminum profile heater body design has a chimney effect to distribute heat evenly. The cage clamp connectors save time and simplify installation. 
PTC Heater HGK 047The HGK 047 heaters are used in enclosures to maintain minimum operating temperatures and to help prevent failure of electronic components caused by condensation and corrosion. 
PTC Heater RCE 016 The RCE 016 small heaters have been designed to prevent condensation and to ensure a minimum operating temperature in small enclosures. 
PTC Heater RC 016 The RC 016 small heaters are designed to prevent condensation and to ensure a minimum operating temperature in small enclosures. 
CSK 060 Touch-Safe PTC Heater The CSK 060 is a touch-safe heater for use in enclosures. The design of the heater utilizes natural convection which results in a circulating current of warm air. The surface temperatures on the accessible side surfaces of the housing are minimized as a result of the heater design. 
CS 060, CSF060 Touch-Safe PTC Heater The CS 060 is a touch-safe heater for use in enclosures. The design of the heater utilizes natural convection which results in a circulating current of warm air. The surface temperatures on the accessible side surfaces of the housing are minimized as a result of the heater design. The CS 060 is also available in a version with a plug-in thermostat requiring no additional wiring (CSF 060).The CSF 060 is a touch-safe heater for use in enclosures. The design of the heater utilizes natural convection which results in a circulating current of warm air. The surface temperatures on the accessible side surfaces of the housing are minimized as a result of the heater design. This model with plug-in thermostat does not require additional wiring. The CSF 060 is also available in a version without thermostat (CS 060).
Fan Heater
Space-saving Fan Heater HVL 031, HV 031 The compact high-performance fan heater prevents formation of condensation in control or switch systems and provides an evenly distributed interior air temperature in enclosures. This fan heater is available with fan (HVL 031) as well as without fan (HV 031).The compact high-performance fan heater prevents formation of condensation in control or switch systems and provides an evenly distributed interior air temperature in enclosures. This fan heater is available without fan (HV 031) as well as with fan (HVL 031).
Compact Fan Heater Series HGL 046 Compact fan heater prevents formation of condensation. The integrated high performance axial fan provides forced air circulation and so guarantees an even temperature in enclosures. With internal terminal connector. 
Compact semiconductor Fan Heater CS/CSL 028 Fan heater prevents formation of condensation and provides an evenly distributed interior air temperature in enclosures with electric/electronic components. The heater is connected using the internal terminal connectors The small size of the CS/CSL 028 makes it ideal for use in enclosures where space is at a premium. 
Semiconductor Fan Heater CR 027 Semiconductor fan heaters prevent the formation of condensation and ensure an even temperature in switch and control equipment. The built-in regulator is used to set the desired temperature. 
Compact high-performance Fan Heater CR 030, CR130 The compact high performance fan heater prevents formation of condensation and provides an evenly distributed interior air temperature in enclosures with electric/electronic components. The plastic enclosure provides double insulation and acts as protection against contact. The fan heater is available with integrated thermostat or pre-set hygrostat for temperature or humidity control. The CR 030 was designed as a stationary unit for the bottom of the enclosure. For wall fixing the fan heater CR 130 is recommended.The compact high performance fan heater prevents formation of condensation and provides an evenly distributed interior air temperature in enclosures with electric/electronic components. The plastic enclosure provides double insulation and acts as protection against contact. The fan heater is available with integrated thermostat or pre-set hygrostat for temperature or humidity control. The CR 130 was designed as a stationary unit for wall fixing. For fixing on the bottom of the enclosure the fan heater CR 030 is recommended.
Compact high-performance Fan Heater CS 030, CS 130 Heating capacity (W)The compact high performance fan heater prevents formation of condensation and provides an evenly distributed interior air temperature in enclosures with electric/electronic components. The plastic enclosure provides double insulation and acts as protection against contact. The fan heater is available with optional integrated thermostat for temperature control. The CS 030 was designed as a stationary unit for the bottom of the enclosure. For wall fixing the fan heater CS 130 is recommended.The compact high performance fan heater prevents formation of condensation and provides an evenly distributed interior air temperature in enclosures with electric/electronic components. The plastic enclosure provides double insulation and acts as protection against contact. The fan heater is available with optional integrated thermostat for temperature control. The CS 130 was designed as a stationary unit for wall fixing. For fixing on the bottom of the enclosure the fan heater CS 030 is recommended.
Hazardous Area Heater
Hazardous area Heater CREx 020 Series Compact convection heater for use in areas with explosion hazard for prevention of formation of condensation, temperature fluctuations and for protection against frost in transmitter housings, switch cabinets and measuring equipment.
Prerequisite for a clean operation of your components is the right climate in your enclosure. The right climate can be attained by a temperature and moisture control system which is put in place. Thermostats and Hygrostats are used for the control of heaters, filter fans, heat exchangers and air conditioning equipment. They activate when set temperature or humidity values are exceeded or have fallen below. Additionally ventilators can be monitored to ensure the smooth function, e.g. of filter fans . The airflow monitor detects and signalises fan malfunctions or blockages.
Relay
Electronic Relay SM 010 Electronic relay for switching DC appliances with high switching capacity. A separate conventional switch contact is used as controller (e.g. temperature regulator, humidity regulator). The electronic relay is available in 24VDC and 48VDC versions.Heating / Cooling
Small, compact Thermostat KT 011 Thermostat “NC” (normally closed): Thermostat opens at temperature rise. Comes with a Red temperature dial.Thermostat “NO” (normally open): Thermostat closes at temperature rise. Comes with a Blue temperature dial.
Tamperproof Thermostats (Pre-set) FTO 011 / FTS 011 Tamperproof (Pre-set) Thermostat FTO 011: Contact breaker /NC (red casing) for regulating heaters or for switching signal devices when temperature has fallen below the minimum value. The contact opens when temperature is rising. Tamperproof (Pre-set) Thermostat FTS 011: Contact maker /NO (blue casing) for regulating filter fans, heat exchangers, cooling devices or for switching signal devices when temperature limit has been exceeded. The contact closes when temperaure is rising.
Dual Thermostat ZR 011 Two thermostats in one casing: Thermostat (contact breaker, normally closed) for regulating heaters. Thermostat (contact maker, normally open) for regulating filter fans and heat exchangers or switching signal devices when temperature limit has been exceeded.Heaters and cooling equipment can be switched independently from each other with a temperature offset as opposed to the usual change-over contacts.
Mechanical Thermostat FZK 011 The mechanical thermostat is used for controlling heating and cooling equipment, filter fans or signal devices. The thermostat registers the surrounding air and can switch both inductive and resistive loads via snap-action contact.Functionality: The temperature setting on the scale equals to the upper switch point, which means that the Normally Closed contact opens. The temperature setting minus switch temperature difference (and tolerances) equals to the lower switch point, which means that the Normally Closed contact closes.
Electronic Thermostat ET 011 (24VDC) Electronic thermostat for regulating high performance DC 24V equipment. Heating or cooling appliances as well as signal devices can be switched via the potential free change-over contact. In comparison to mechanical thermostats, the ET 011 has a low hysteresis making the switching point and setting accuracy more precise.