According to EN ISO 80079-36 the following correlation exists between the temperature
class and the maximum surface temperature:
Temperature class Max. surface temperature
T1 450 °C
T2 300 °C
T3 200 °C
T4 135 °C
T5 100 °C
T6 85 °C
3.1.5 Fan marking
Example for marking of an ER..C plug fan:
II 2G Ex h IIB T4 Gb
A fan marked in this manner would meet the following requirements.
: General ATEX marking
•
II: Group II requirements compliant with Directive 2014/34/EU (not suitable for under-
ground applications)
•
2G: Category 2, gas explosion protection outdoors
•
h: General marking (previously “c” for constructional safety)
•
IIB: Gas explosion group
•
T4: Temperature class
•
Gb: Equipment protection level (EPL)
The local process parameters should be compared with the specifications for intended
use and the data on the rating plate.
Other uses which do not coincide with, or which exceed those specified will be deemed
unauthorised unless contractually agreed. Damages resulting from such unauthorised
uses will not be the liability of the manufacturer. The user will assume sole liability.
3.2 Name plate
Example: Fan-rating plate
Information
A fan rating plate is located on the product and an identical fan rating plate is stuck onto
the title page of the enclosed assembly instructions during production.
Assembly instructions RH..C and ER..C Product overview
L-BAL-F019-GB 2021/12 Index 003 Part.-No. 00282064-GB
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