7F.20.8.230.1020

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 VII-2019, www.findernet.com 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 17