Control cabinet heater for explosion protection
Explosion-proof switch cabinet heater – ATEX-approved – Switch cabinet heater for hazardous areas
A control cabinet heater in hazardous areas is indispensable in industrial plants where flammable gases, vapors, or dusts may be present. They ensure the functionality of electrical components in control cabinets even under extreme conditions. This not only protects against failures and malfunctions but also significantly increases safety in hazardous areas.
Why explosion-proof switch cabinet heating is important
The main task of ATEX switch cabinet heating is temperature control, but the benefits of heating for Ex switch cabinets go far beyond that::
- Prevents condensation: Protects against moisture that can lead to short circuits and corrosion.
- Increases service life: Sensitive electronics are protected from damage.
- Protection against icing: Stable operation even at extremely low temperatures.
- Cost savings: Reduced maintenance costs and less downtime.
With a control cabinet heater in the hazardous area, you can sustainably increase the operational safety of your system.
Typical areas of application for heating systems for explosion-proof control cabinets
Explosion-proof control cabinet heaters are ideal for environments with explosive atmospheres, such as:
- Chemical and pharmaceutical industry
- Oil and gas production
- Refineries
- Food production
- Energy generation
- Mining
- Waste management
Thanks to their robust design and ATEX certification, switch cabinet heaters in hazardous areas ensure process stability even under the most difficult conditions.
Product overview at Lm-therm
At Lm-therm, you will find a wide range of switch cabinet heaters for hazardous areas, which have been specially developed for use in Zone 1/21 or Zone 2/22:
- Power ranges: 70W to 400W
- Voltage ranges: 115V to 230V AC
- Temperature classes: e.g. < +135°C (T4) or < +200°C (T3)
- Approvals: CE, UKCA, ATEX, CSA
With the Lm-therm Ex control cabinet heater, you are ideally equipped to ensure the safety and efficiency of your systems.
Conclusion:
Choosing the right explosion-proof switch cabinet heater is a decisive factor for safe and reliable operation in hazardous industrial areas.
Trust in the quality and expertise of Lm-therm.
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Frequently Asked Questions
What heating capacity do I need for a control cabinet heater in potentially explosive atmospheres?
The heating capacity also depends on the heat balance (cabinet size, Tmin, setpoint temperature); however, the Ex zone requirements and permissible surface temperatures must also be taken into account. The design should therefore always be tailored to the specific zone and equipment.
In which Ex zones can control cabinet heaters be used?
This depends on the product’s specific certification (e.g., for Zone 1/2 or 21/22). It is crucial that the heater and accessories are explicitly approved for the required zone and gas/dust group. Electric heating is not permitted in Zone 0.
What should be considered regarding the temperature class or surface temperature?
In Ex areas, the maximum surface temperature defined by the temperature classes must not be exceeded to prevent the generation of sufficient ignition energy. Therefore, the heater must be suitable for the required temperature class and must be properly controlled and protected.
How is an Ex control cabinet heater controlled and monitored?
Suitable thermostats or temperature limiters are often used to ensure safe shutdown. Depending on the application, additional monitoring or protection measures may be required.
Can I install Ex-rated heaters in the same way as standard equipment?
No, installation and operation are subject to specific requirements (e.g., appropriate cable glands, protection ratings, documentation). Installation must be carried out in accordance with the approval, manufacturer’s specifications, and applicable Ex-directives. The installation must generally be approved by a certification body.