9
6
Description
• Material of the housing: UV resistant PE (PRF-EX from PP)
• Material of the impeller: PP
Warning
• Examined according to ATEX directive 2014/34/EU
• Antistatic housing
The explosion-protected fans can be used for temperature classes T1 to T4 and have been registered for
conveying explosion-capable atmosphere in Zone 1 and 2, category 2G and 3G, with the groups IIA, IIB and
IIC (only PRF-EX Ex d).
PRF-EX Ex d possess an IEC norm motor in an Ex d finish which can be controlled via a frequency inverter
and has an added-on terminal box in Ex e finish. Motor protection by integrated PTC resistor with connection
to a motor protection switching device e.g. U-EK230E.
6.1
Dimension
Table 2 Dimensions
[mm]
A
B
C
ØD
E
F
H
I
J
L
M
N
O
PRF, PRF EX 125
142
165
60
125
150
183
200
235
250
115
40
100
140
PRF, PRF EX 160
182
210
80
160
190
237
255
290
310
150
40
100
140
PRF, PRF EX 180
205
230
80
180
205
275
277
320
350
160
40
120
190
PRF, PRF EX 200
227
245
80
200
220
313
320
355
410
170
40
150
230
PRF, PRF EX 250
284
330
80
250
270
380
330
370
495
195
40
170
250
6.2
Fan and motor data
• Max. temperature of transported air, max. ambient temperature, sound pressure –> see data sheet, available in our
online catalogue.
• Voltage, current, enclosure class, weight –> see name plate
• The motor data can be found on the name plate of the motor, or in the technical documents of the motor
manufacturer.
6.3
Chemical components
The standard variants of the plastic used are polyethylene (PE) and polypropylene (PP). As a matter of principle, the ro-
tor material is the indicator for the selection.
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