Filter Fan
(24…630)m³/h and
Exhaust Filter
Drying kilns
7F
SЕRIES
Textile machines
Machines
for paper
processing
Machines for
ceramics
Woodprocessing
machines
Panels for
electrical
distribution
Control panels
Forced-air
ventilators
FINDER reserves the right to alter characteristics at any time without notice. FINDER assumes no liability for damage to persons or property, caused as a result of the incorrect use or application of its products.
7F SERIES
Filter Fan (24…630)m3/h
7F
SERIES
7F.20.8.xxx.1020
Filter Fan for electrical cabinets and
enclosures 120 V or 230 V AC versions
7F.20.8.xxx.2055
7F.20.8.xxx.3100
• Very low acoustic noise
• Minimal depth within enclosure
• Air volume 24, 55 and 100 m3/h (free flow)
• Air volume 14, 40 and 75 m3/h
(with Exhaust Filter installed in cabinet)
• Nominal voltage: 120 or 230 V AC (50/60 Hz)
• Time-saving installation and maintenance
• Easily replaceable filter mat
• Filter Fan supplied in Reverse flow mode (7F.21)
• Nominal voltage
• Nominal voltage
• Nominal voltage
120 or 230 V AC
• Air volume 24 m3/h
• Rated power 17 W
• Size 1
120 or 230 V AC
• Air volume 55 m3/h
• Rated power 28 W
• Size 2
• Air volume 100 m3/h
• Rated power 28 W
• Size 3
120 or 230 V AC
G
For outline drawing see page 14
Fan data
Air volume (free flow)
m3/h
24
55
100
Air volume (with exhaust filter installed)
3
m /h
14
40
75
dB (A)
27
42
42
50000
50000
50000
Noise level
Life time at 40 °C
h
Electrical data
Nominal voltage (UN)
V AC (50/60 Hz)
Operating range
120
AC
230
120
230
120
(0.8...1.1)UN
(0.8...1.1)UN
230
(0.8...1.1)UN
Current consumption
A
0.23
0.1
0.25
0.12
0.25
0.12
Rated power
W
17
17
28
28
28
28
Other data
Housing, cover
Plastics according to UL94 V-0, light grey (RAL 7035)
Filter mat (included)
G3 according to EN 779, filtering degree (80…90)%
Filter material
Synthetic fibre with progressive construction, temperature resistant to +100 °C,
self extinguishing, Class F1 (DIN 53438)
Electrical connections
VII-2019, www.findernet.com
Push-in terminals
Wire size (mm )
min/max
0.7/2.5
Wire size (AWG)
min/max
18/14
2
Ambient temperature range
Protection class
Protection category according to EN 60529
Protection category according to NEMA
°C
–15…+55
I
IP 54
Type 12
Approvals (according to type)
3
7F
SERIES
7F SERIES
Filter Fan (24…630)m3/h
7F.50.8.xxx.4230
Filter Fan for electrical cabinets and
enclosures 120 V or 230 V AC versions
7F.50.8.xxx.4370
• Very low acoustic noise
• Minimal depth within enclosure
• Air volume 230 and 370 m3/h (free flow)
• Air volume 180 and 250 m3/h
(with Exhaust Filter installed in cabinet)
• Nominal voltage: 120 or 230 V AC (50/60 Hz)
• Time-saving installation and maintenance
• Further available versions*:
- EMC Filter Fan (7F.70) and
EMC Exhaust Filter (7F.07)
- Filter Fan supplied in Reverse flow mode (7F.80)
* Product codes, see pages 8 & 11
• Nominal voltage
120 or 230 V AC
• Air volume 230 m3/h
• Rated power 40 W
• Size 4
• Air volume 370 m3/h
• Rated power 70 W
• Size 4
120 or 230 V AC
Note:
By reversing the fan motor, the air direction
can be changed from “Inlet” Filter Fan mode
to “Exhaust” Filter Fan mode** (except for the
types 7F.50.8.xxx.4370, 7F.50.8.xxx.5500 and
7F.50.8.xxx.5630).
** Supplied in “Inlet” Filter Fan mode (Standard).
For outline drawing see page 15
Fan data
Air volume (free flow)
m3/h
230
370
Air volume (with exhaust filter installed)
m /h
180
250
Noise level
3
dB (A)
Life time at 40 °C
h
53
65
50000
50000
Electrical data
Nominal voltage (UN)
V AC (50/60 Hz)
Operating range
120
AC
230
120
230
(0.8…1.1)UN
(0.8…1.1)UN
Current consumption
A
0.34
0.17
0.8
0.4
Rated power
W
40
40
70
70
Other data
Housing, cover
Plastics according to UL94 V-0, light grey (RAL 7035)
Filter mat (included)
G3 according to EN 779, filtering degree (80…90)%
Filter material
Synthetic fibre with progressive construction, temperature
resistant to +100 °C, self extinguishing, Class F1 (DIN 53438)
3-pole screw terminals/max. 2.5 mm2
Electrical connections/wire size
Screw torque
Ambient temperature range
Protection class
Protection category according to EN 60529
Approvals (according to type)
4
Nm
°C
0.8
–10…+70
I
IP 54
VII-2019, www.findernet.com
G
• Nominal voltage
7F SERIES
Filter Fan (24…630)m3/h
7F
SERIES
7F.50.8.xxx.5500
Filter Fan for electrical cabinets and
enclosures 120 V or 230 V AC versions
7F.50.8.xxx.5630
• Very low acoustic noise
• Minimal depth within enclosure
• Air volume 500 and 630 m3/h (free flow)
• Air volume 370 and 470 m3/h
(with Exhaust Filter installed in cabinet)
• Nominal voltage: 120 or 230 V AC (50/60 Hz)
• Time-saving installation and maintenance
• Further available versions*:
- EMC Filter Fan (7F.70) and
EMC Exhaust Filter (7F.07)
- Filter Fan supplied in Reverse flow mode (7F.80)
* Product codes, see pages 8 & 11
• Nominal voltage
• Nominal voltage
120 or 230 V AC
• Air volume 500 m3/h
• Rated power 70 W
• Size 5
• Air volume 630 m3/h
• Rated power 130 W
• Size 5
120 or 230 V AC
Note:
By reversing the fan motor, the air direction
can be changed from “Inlet” Filter Fan mode
to “Exhaust” Filter Fan mode** (except for the
types 7F.50.8.xxx.4370, 7F.50.8.xxx.5500 and
7F.50.8.xxx.5630).
G
** Supplied in “Inlet” Filter Fan mode (Standard).
For outline drawing see page 15
Fan data
Air volume (free flow)
m3/h
500
630
Air volume (with exhaust filter installed)
m /h
370
470
Noise level
3
dB (A)
Life time at 40 °C
h
65
72
50000
50000
Electrical data
Nominal voltage (UN)
V AC (50/60 Hz)
Operating range
120
AC
230
120
230
(0.8…1.1)UN
(0.8…1.1)UN
Current consumption
A
0.8
0.4
1.10
0.55
Rated power
W
70
70
130
130
Other data
Housing, cover
Plastics according to UL94 V-0, light grey (RAL 7035)
Filter mat (included)
G3 according to EN 779, filtering degree (80…90)%
Filter material
Synthetic fibre with progressive construction, temperature
resistant to +100 °C, self extinguishing, Class F1 (DIN 53438)
screw terminals / max. 2.5 mm2
VII-2019, www.findernet.com
Electrical connections/wire size
Screw torque
Ambient temperature range
Protection class
Protection category according to EN 60529
Nm
°C
0.8
–10…+70
I
IP 54
Approvals (according to type)
5
7F
SERIES
7F SERIES
Filter Fan (24…630)m3/h
7F.20.9.024.1020
Filter Fan for electrical cabinets and
enclosures 24 V DC versions
7F.20.9.024.2055
7F.20.9.024.3100
• Very low acoustic noise
• Minimal depth within enclosure
• Air volume 24, 55 and 100 m3/h (free flow)
• Air volume 14, 40 and 75 m3/h
(with Exhaust Filter installed in cabinet)
• Nominal voltage: 24 V DC
• Time-saving installation and maintenance
• Easily replaceable filter mat
• Filter Fan supplied in Reverse flow mode (7F.21)
• Nominal voltage 24 V DC
• Air volume 24 m3/h
• Rated power 3.6 W
• Size 1
• Nominal voltage 24 V DC
• Air volume 55 m3/h
• Rated power 7 W
• Size 2
• Nominal voltage 24 V DC
• Air volume 100 m3/h
• Rated power 7 W
• Size 3
G
For outline drawing see page 14
Fan data
Air volume (free flow)
m3/h
Air volume (with exhaust filter installed)
Noise level
Life time at 40 °C
24
55
100
3
m /h
14
40
75
dB (A)
37.5
46
45
50000
50000
50000
24
24
24
h
Electrical data
Nominal voltage (UN)V DC
(0.8…1.1)UN
(0.8…1.1)UN
(0.8…1.1)UN
Current consumption
A
0.15
0.32
0.32
Rated power
W
3.6
7
7
Operating range
DC
Other data
Housing, cover
Plastics according to UL94 V-0, light grey (RAL 7035)
Filter mat (included)
G3 according to EN 779, filtering degree (80…90)%
Filter material
Synthetic fibre with progressive construction, temperature resistant to 100 °C, self extinguishing,
Class F1 (DIN 53438)
Push-in terminals
Wire size (mm )
min/max
0.7/2.5
Wire size (AWG)
min/max
18/14
2
Ambient temperature range
Protection class
Protection category according to EN 60529
Protection category according to NEMA
Approvals (according to type)
6
°C
–15…+55
I
IP 54
Type 12
VII-2019, www.findernet.com
Electrical connections
7F SERIES
Filter Fan (24…630)m3/h
7F
SERIES
7F.50.9.024.4230
Filter Fan for electrical cabinets and
enclosures 24 V DC versions
• Very low acoustic noise
• Minimal depth within enclosure
• Air volume 230 m3/h (free flow)
• Air volume 180 m3/h
(with Exhaust Filter installed in cabinet)
• Nominal voltage: 24 V DC
• Time-saving installation and maintenance
• Filter Fan supplied in Reverse flow mode ( 7F.80)
*P
roduct codes, see pages 8 & 11
• Nominal voltage 24 V DC
• Air volume 230 m3/h
• Rated power 26 W
• Size 4
Note:
By reversing the fan motor, the air direction
can be changed from “Inlet” Filter Fan mode
to “Exhaust” Filter Fan mode** (except for the
types 7F.50.8.xxx.4370, 7F.50.8.xxx.5500 and
7F.50.8.xxx.5630).
G
** Supplied in “Inlet” Filter Fan mode (Standard).
For outline drawing see page 15
Fan data
Air volume (free flow)
m3/h
230
Air volume (with exhaust filter installed)
3
m /h
180
dB (A)
61
Noise level
Life time at 40 °C
h
50000
Electrical data
Nominal voltage (UN)V DC
Operating range
DC
24
(0.8…1.1)UN
Current consumption
A
1.08
Rated power
W
26
Other data
Housing, cover
Plastics according to UL94 V-0, light grey (RAL 7035)
Filter mat (included)
G3 according to EN 779, filtering degree (80…90)%
Filter material
Synthetic fibre with progressive construction, temperature
resistant to 100 °C, self extinguishing, Class F1 (DIN 53438)
screw terminals / max. 2.5 mm2
VII-2019, www.findernet.com
Electrical connections/wire size
Screw torque
Ambient temperature range
Protection class
Protection category according to EN 60529
Nm
°C
0.8
–10…+70
I
IP 54
Approvals (according to type)
7
7F
SERIES
7F SERIES
Filter Fan (24…630)m3/h
Ordering information
Example: Series 7F, Filter Fan for mounting in sidewalls, nominal voltage 230 V AC, size 1, air volume 24 m3/h.
7 F . 2 0 . 8 . 2 3 0 . 1
0
2
0
Series
Type
20 = Filter Fan - for indoor use
21 = Reverse flow Filter Fan - for indoor use
50 = Filter Fan - for indoor use
70 = EMC Filter Fan - for indoor use
80 = Reverse flow Filter Fan - for indoor use
Supply version
8 = AC (50/60 Hz)
9 = DC
Operating voltage
024 = 24 V DC
120 = 120 V AC
230 = 230 V AC
Enclosure cut-out
1 = Size 1 (92+1.0 x 92+1.0) mm
2 = Size 2 (125+1.0 x 125+1.0) mm
3 = Size 3 (177+1.0 x 177+1.0) mm
4 = Size 4 (224+1.0 x 224+1.0) mm
5 = Size 5 (291+1.0 x 291+1.0) mm
Filter Fans - All versions
Standard versions
EMC versions
Reverse flow versions
7F.20.8.120.1020
—
7F.21.8.120.1020
Filter Fan, Size 1
7F.20.8.120.2055
—
7F.21.8.120.2055
Filter Fan, Size 2
7F.20.8.120.3100
—
7F.21.8.120.3100
Filter Fan, Size 3
7F.50.8.120.4230
—
7F.80.8.120.4230
Filter Fan, Size 4
7F.50.8.120.4370
—
7F.80.8.120.4370
Filter Fan, Size 4
7F.50.8.120.5500
—
7F.80.8.120.5500
Filter Fan, Size 5
7F.50.8.120.5630
—
—
Filter Fan, Size 5
7F.20.8.230.1020
—
7F.21.8.230.1020
Filter Fan, Size 1
7F.20.8.230.2055
—
7F.21.8.230.2055
Filter Fan, Size 2
7F.20.8.230.3100
—
7F.21.8.230.3100
Filter Fan, Size 3
7F.50.8.230.4230
7F.70.8.230.4230
7F.80.8.230.4230
Filter Fan, Size 4
7F.50.8.230.4370
7F.70.8.230.4370
7F.80.8.230.4370
Filter Fan, Size 4
7F.50.8.230.5500
7F.70.8.230.5500
7F.80.8.230.5500
Filter Fan, Size 5
7F.50.8.230.5630
7F.70.8.230.5630
—
Filter Fan, Size 5
7F.20.9.024.1020
—
7F.21.9.024.1020
Filter Fan, Size 1
7F.20.9.024.2055
—
7F.21.9.024.2055
Filter Fan, Size 2
7F.20.9.024.3100
—
7F.21.9.024.3100
Filter Fan, Size 3
7F.50.9.024.4230
7F.70.9.024.4230
7F.80.9.024.4230
Filter Fan, Size 4
Note:
The technical features (air volume, dimensions and electrical parameters) for the Standard Filter Fans (7F.20 and 7F.50), the EMC Filter Fans (7F.70) and
the Reverse flow versions (7F.21 and 7F.80) - are exactly the same.
7F.50.8.120.5630 has no UL approval. Other versions on request.
8
VII-2019, www.findernet.com
G
Air volume (free flow)
020 = 24 m3/h
055 = 55 m3/h
100 = 100 m3/h
230 = 230 m3/h
370 = 370 m3/h
500 = 500 m3/h
630 = 630 m3/h
7F SERIES
Exhaust Filter
Exhaust Filter
7F
SERIES
7F.02.0.000.1000
7F.02.0.000.2000
7F.02.0.000.3000
The size of the Exhaust Filter should match
the size of the Filter Fan to achieve the best
ventilation within the cabinet
• Minimum depth within enclosure
• Time-saving installation and maintenance
• Easily replaceable filter mat
• For Filter Fans
• For Filter Fans
• For Filter Fans
7F.20.x.xxx.1020
• Size 1
7F.20.x.xxx.2055
• Size 2
• Size 3
7F.20.x.xxx.3100
G
For outline drawing see page 14
Other data
Housing, cover
Filter mat (included)
Filter material
Protection category according to EN 60529
Protection category according to NEMA
Plastics according to UL94 V-0, light grey (RAL 7035)
G3 according to EN 779, filtering degree (80…90)%
Synthetic fibre with progressive construction, temperature resistant to +100 °C,
self extinguishing, Class F1 (DIN 53438)
IP 54
Type 12
VII-2019, www.findernet.com
Approvals (according to type)
9
7F
SERIES
7F SERIES
Exhaust Filter
Exhaust Filter
7F.05.0.000.4000
7F.05.0.000.5000
The size of the Exhaust Filter should match
the size of the Filter Fan to achieve the
best ventilation within the cabinet
• Minimum depth within enclosure
• Time-saving installation and maintenance
• Further available versions*:
- EMC Exhaust Filters (7F.07)
* Product codes, see page 11
• For Filter Fans
• For Filter Fans
7F.50.x.xxx.4230 or
7F.50.8.xxx.4370
• Size 4
7F.50.8.xxx.5500 or
7F.50.8.xxx.5630
• Size 5
G
For outline drawing see page 15
Other data
Housing, cover
Filter mat (included)
Filter material
Protection category according to EN 60529
Plastics according to UL94 V-0, light grey (RAL 7035)
G3 according to EN 779, filtering degree (80…90)%
Synthetic fibre with progressive construction, temperature
resistant to +100 °C, self extinguishing, Class F1 (DIN 53438)
IP 54
VII-2019, www.findernet.com
Approvals (according to type)
10
7F SERIES
Exhaust Filter
7F
SERIES
Ordering information
Example: Series 7F, Exhaust Filter for mounting in sidewalls, size 1.
7 F . 0 2 . 0 . 0 0 0 . 1
0
0
0
Series
Type
02 = Exhaust Filter - for indoor use
05 = Exhaust Filter - for indoor use
07 = EMC Exhaust Filter - for indoor use
Supply and operating voltage
0 = Not applicable for Exhaust Filter
Operating voltage
000 = Not applicable for Exhaust Filter
Exhaust Filter - All versions
Enclosure cut-out
1000 = Size 1 (92+1.0 x 92+1.0) mm
2000 = Size 2 (125+1.0 x 125+1.0) mm
3000 = Size 3 (177+1.0 x 177+1.0) mm
4000 = Size 4 (224+1.0 x 224+1.0) mm
5000 = Size 5 (291+1.0 x 291+1.0) mm
Components
Standard-versions
EMC - versions
7F.02.0.000.1000
—
Exhaust Filter, Size 1
7F.02.0.000.2000
—
Exhaust Filter, Size 2
7F.02.0.000.3000
—
Exhaust Filter, Size 3
7F.05.0.000.4000
7F.07.0.000.4000
Exhaust Filter, Size 4
7F.05.0.000.5000
7F.07.0.000.5000
Exhaust Filter, Size 5
Standard-Filter Fan
Standard-Exhaust Filter EMC-Filter Fan
EMC-Exhaust Filter
Filter mat
Size
7F.20.8.xxx.1020
7F.02.0.000.1000
—
—
07F.15
1
7F.20.8.xxx.2055
7F.02.0.000.2000
—
—
07F.25
2
7F.20.8.xxx.3100
7F.02.0.000.3000
—
—
07F.35
3
7F.50.8.xxx.4230
7F.05.0.000.4000
7F.70.8.230.4230
7F.07.0.000.4000
07F.45
4
7F.50.8.xxx.4370
7F.05.0.000.4000
7F.70.8.230.4370
7F.07.0.000.4000
07F.45
4
7F.50.8.xxx.5500
7F.05.0.000.5000
7F.70.8.230.5500
7F.07.0.000.5000
07F.55
5
7F.50.8.xxx.5630
7F.05.0.000.5000
7F.70.8.230.5630
7F.07.0.000.5000
07F.55
5
7F.20.9.024.1020
7F.02.0.000.1000
—
—
07F.15
1
7F.20.9.024.2055
7F.02.0.000.2000
—
—
07F.25
2
7F.20.9.024.3100
7F.02.0.000.3000
—
—
07F.35
3
7F.50.9.024.4230
7F.05.0.000.4000
7F.70.9.024.4230
7F.07.0.000.4000
07F.45
4
07F.25
07F.45
07F.55
Spare Filter mats
07F.15
Protection category
Accessories
IP54
Pressure compensation device, for pressure compensation
in closed cabinets or enclosures
Air interface area
cm2
Mounting
Torque
Nm
Protection category
7
5 (max. 10)
plastic according to UL94-V0
mm
Mounting position
Ambient temperature
07F.80
PG 29 thread with union nut
Material
Dimensions (diameter/depth)
07F.35
G
65.5/30.5
upper part of cabinet sidewalls
°C
–45…+70
IP 55
VII-2019, www.findernet.com
07F.80
Unit package contains 2 pressure compensation devices
11
7F
SERIES
7F SERIES
Filter Fan (24…630)m3/h
Mounting instructions for Filter Fans
Mounting arrangement of Filter Fans and Exhaust Filter
Filter
The installation with the only clips is optimized for 1.5 mm thick sheets;
it is also possible with thicknesses from 1 to 2.5 mm.
Fixing with screws (supplied) is recommended.
Tightening torque 0.3 Nm.
Fan
Replacement of Filter mat ( Type 7F.20)
VII-2019, www.findernet.com
G
12
7F SERIES
Filter Fan (24…630)m3/h
7F
SERIES
Drilling template and mounting cut-outs for Filter Fans and Exhaust Filter
Size 1
Size 2
Size 3
Size 4
Size 5
Mounting and maintenance
1. Make the panel cut-out according to the size of the Filter Fan or Exhaust Filter in the sidewall of the cabinet as appropriate.
A template of the panel cut-out is included in the packaging of the Filter Fan or Exhaust Filter.
2. Make the electrical connection.
3. Mount by simply snapping the side-located lugs on the Filter Fan or Exhaust Filter into the panel cut-out (without using screws for sidewall thickness
of 1.2…2.4 mm).
At other thickness it is recommended to mount the Filter Fan by the screws supplied (for size 1, the template shows the mounting cut-out only).
4. When screws are needed for the mounting, remove the plastic cover and fix the Filter Fan with the 4 screws supplied.
Then insert the filter mat and snap the plastic cover to the mounting frame.
5. During maintenance or when replacing the filter mat remove the plastic cover, replace the filter mat and snap on the plastic cover.
VII-2019, www.findernet.com
G
13
7F SERIES
Filter Fan (24…630)m3/h
7F
SERIES
Outline drawings
54.4
54.4
99
90 ±0.1
Type 7F.02.0.000.1000
120
120
120
120
120
DC version
92.5 ±0.5
92.5 ±0.5
AC version
92 ±0.5
92 ±0.5
Type 7F.20.x.xxx.1020
41
41
99
120
Type 7F.20.x.xxx.2055
Type 7F.02.0.000.2000
Type 7F.20.x.xxx.3100
Type 7F.02.0.000.3000
11.1 9
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G
14
7F SERIES
Filter Fan (24…630)m3/h
7F
SERIES
Outline drawings
Type 7F.50.x.xxx.4230
Type 7F.05.0.000.4000
Type 7F.50.x.xxx.4370
Type 7F.05.0.000.4000
G
Type 7F.05.0.000.5000
Type 7F.50.x.xxx.5630
Type 7F.05.0.000.5000
VII-2019, www.findernet.com
Type 7F.50.x.xxx.5500
15
7F
SERIES
7F SERIES
Filter Fan (24…630)m3/h
Fan selection
Power dissipation (W)
Temperature difference (ΔT=K) between the inside and
the outside of the cabinet
Air Flow (m3/h)
G
24 m3/h
55 m3/h
100 m3/h
230 m3/h
370 m3/h
500 m3/h
630 m3/h
VII-2019, www.findernet.com
Example
First, estimate the power dissipated within the cabinet. Then calculate the maximum difference between the internal and external temperature (green
lines) by considering the difference between the maximum permitted internal temperature (as dictated by the temperature rating of the enclosed
components, or specification) and the maximum temperature expected outside the cabinet.
The projection onto the X axis, of the intersection between the power (watts) and the appropriate green line, corresponds to the air flow rate in m3/h
required to meet the maximum internal temperature limit. Extending this line vertically to intersect with the blue horizontal lines, indicates the most
appropriate model of 7F fan to be fitted to the cabinet to provide the requisite air flow.
The example above considers a cabinet with an internal thermal power dissipation of 500 W, and assumes the maximum temperature difference between
the inside and the outside of the cabinet to be 20K. The required air flow can be seen to be a little less than 80 m3/h.
It is suggested that this is increased by 10% to allow for the affects of a dirty filter.
And so, it can be seen that models of the 7F with 100 m3/h flow rate will provide the proper dissipation of heat under these circumstances.
16
7F SERIES
Filter Fan (24…630)m3/h
7F
SERIES
Application notes
Filter Fan
The ball-bearing axial fan housing is made of aluminium and the rotor is
made of plastic or metal (depending on the type).
Filter classes
Within EN 779 are specified 9 filter classes, categorised into 4 coarse dust
filters und 5 fine dust filters.
The coarse dust filters G1 - G4 are able to filter particles > 10 μm and the
fine dust filters G5 - G9 are able to filter particles from (1…10)μm.
Filter classes
G1 - G4
(EU1 - EU4)
G5 - G9
(EU5 - EU9)
Example of particle
Textile fibers, hair, sand,
pollen, spores, insects,
cement dust
Pollen, spores, cement dust,
tobacco smoke, oil smoke,
soot
Particle size
> 10 μm
Mounting of the pressure compensation device
In sealed cabinets and enclosures the internal pressure can vary due to
changes in temperature. The pressure compensation device (07F.80) will
relieve this internal/external pressure differential whilst maintaining a high
level of protection - preventing the ingress of dust and moisture into the
cabinet or the enclosure. The pressure compensation device is approved
for use in cabinets and enclosures according to DIN EN 62208.
Drill a hole Ø 37+1.0 mm in the housing wall and fix the pressure
compensation device with the accompanying nut. It is important to ensure
that the sealing ring is located on the outside. To ensure optimum pressure
balance, it is recommended to fit 2 pressure compensation device at the
upper sides of the cabinet or enclosure.
(1…10)μm
Filtering degree (Am)
The degree of filtering (Am) is the percentages of dust, by weight, that is
caught and retained by the filter.
Filter mats
The quality of these filters mats has been independently tested, according
EN 779 and branded after passing the test.
The filter mats are to filter class G3 and have an average filtering degree
of (80…90)%.
Filter material
The filter material consists of a synthetic fiber with progressive construction
which is moisture-resistant to 100% RH and temperature resistant to
+100 °C.
According to the strict requirements of fire class F1, DIN 53438, these filter
mats are self extinguishing.
G
Progressive construction at filter mats
The individual fibers of these filter mats are bonded by a special process to
provide a progressive construction where the fiber size and spacing varies
through the thickness of the filter mat.
This means that coarse dust particles are caught early and fine dust later
through the thickness of the mat. In this way the entire depth of the filter
mat is used.
Flammability class of the housing and the cover
The plastic materials used comply with flammability class V-0, according
UL94.
VII-2019, www.findernet.com
EMC Filter Fans and EMC Exhaust Filters
The plastic mounting frame of the EMC Filter Fans (7F.70) and EMC Exhaust
Filters (7F.07) are sprayed with a conductive (metallic) paint.
The gasket located on the mounting frame, for sealing the Filter Fan or
Exhaust Filter in the cabinet is also metalised.
In addition; located at the EMC Filter Fan between the metalized mounting
frame and the filter mat, is a metal grid.
Therefore, between the metal parts of the Filter Fan and the metal cabinet,
there is a conductive connection.
Filter Fan in “reverse flow” version
As supplied, the standard Filter Fan is in “Draw-In”- mode, which means
that cool air is filtered and drawn into the cabinet. In some cases it may be
required that the warm air is blown out of the cabinet.
In which case it is possible to get Filter Fans in “Exhaust Filter” mode version
(7F.80).
Please see general technical information
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