Category 1 (zone 0) covers areas, where there is a permanent or long lasting occurrence

Explosion proof fans General Systemair explosion proof fans have been developed to be used in effective supply and exhaust air systems allocated to category 2 (zone 1) and category 3 (zone 2) in explosion hazardous areas. All fans are manufactured in accordance with ATEX guideline 94/9/EG certified for EC countries. Certificates can be downloaded from our homepage. The fans are suitable for mounting in above mentioned explosion hazardous zones. Systemair ranges The materials used in Systemair EX fans are in accordance with DIN EN 50014. The fans of series DVEX, DVV-Ex and RVK-Ex are equipped with self-cleaning impellers with backward curved blades. EX, KTEX and DKEX are equipped with impellers with forward curved blades. AW-EX is equipped with profiled steel impellers with additional painting. The selection of an EX-fan Below Systemair provides you with helpful information for the selection of a suitable fan. We want to point out that we as manufacturers are responsible only for the appearance and workmanship of the fan. The system user is responsible for the correct system design for a proper operation. Pre-selection depends on the medium to be transported. Each medium has an individual ignition temperature. The fans supplied by Systemair comply with temperature classification T3, some units can also be used in T4. The next step is the selection of the correct zone resp. category. Basically the correct zone or category can only be given by the user of the system, after having conducted an analyse regarding the occurrence of explosion hazardous gases or gas mixtures in the project. All Systemair explosion proof fans are in unit category II, allowing an application in zone 1 and zone 2. In the industry, explosion hazardous areas are classified in zones. ATEX classifies the fans in categories, corresponding to the zones. Categories are independent from the substance causing the explosion hazard. The classification in categories (or zones) is related to the temporal appearance (frequency of occurrence) of explosion hazard - ous atmosphere (gas/vapour/fog-air mixture in ignitable condition). The categories or zones do not define the concentration! Category 1 (zone 0) covers areas, where there is a permanent or long lasting occurrence of explosion hazardous atmosphere (more than 1000h/year). Example: inside a fuel tank. Category 2 (zone 1) covers areas, where there is a regular occurrence of explosion hazardous atmosphere (10-1000 h/year). Example: Filling machine Category 3 (zone 2) covers areas, where there is a non-regular or short time appearance of explosion hazardous atmosphere (up to 10h/year). Example: defective gas pipe, accidents. i d e p o m q intrinsic safety pressure resistant capsulation increased safety overpressure capsulation oil capsulation cast capsulation sand capsulation The categories show the occurrence of an explosion hazardous area as a probability. It is important to know: In all categories (zones) there is the same momentary hazard (same substance and same concentration) when explosion hazardous atmosphere occurs. Example: zone 0, empty and noncleaned fuel tank, concentration 20Vol%; zone 2, leaked fuel, concentration 20Vol%. If an explosion hazardous atmosphere occurs, the hazard potential is the same in all zones! The last decision has to be made regarding the ignition protection class. All Systemair explosion proof fans correspond to ignition protection class Ex (e) = increased safety. The following table shows possible ignition protection classes. EEx q IIA T5 The ignition of an explosive mixture can be avoided by different ignition protection classes. Temperature Ignition temperatures of Admissible surface temperature classification different gas mixtures of electrical equipment T1 > 450 C 450 C T2 > 300...> 450 C 300 C T3 > 200...> 300 C 200 C T4 > 135...> 200 C 135 C T5 > 100...> 135 C 100 C T6 > 85...> 100 C 85 C The table shows the maximum surface temperature for each temperature classification. 238

Explosion proof fans Motors DVEX, AW-EX, KTEX, RVK and DKEX are equipped with speed controllable, certified external rotor motors in EXe execution. EX is equipped with non speed controllable IEC motors, Exe execution. DVV-EX is equipped with either single or two speed motors in Ex(d). This motor type can be speed controlled by frequency. All DVEX, KTEX, DKEX, AW-EX and RVK EX fan motors are equipped with a cold conductor for motor protection. The motor protection has to be connected with a motor protection device, described in the certificate and also certified. Motors of series DVV-Ex and EX do not have a thermal motor protection. Those motors have to be supervised by a suitable over-current device. The ignition temperature of the medium, but also the classification in explosion groups is important. Both classifications have to be considered (II A or II B) when selecting a suitable fan. A good example is hydrogen. Hydrogen is classified in temperature class T1, but in explosion group II C. Hydrogen can not be extracted with a Systemair explosion proof fan. Explosion group group II A group II B group II C Gases and vapours of substances acetone, ammonia, ethyl alcohol, fuel, benzene, methane, propane, carbon dioxide ethylene, diethyl ether, town gas hydrogen, carbon disulphide, acetylene. DVEX Example of an Installation. FTG Folding framework TDA Adapter framwork VKS Automatic shutter ASS Flexible connection ASF Inlet flange FDS Flat roof base Labelling of a fan tested in accordance with ATEX Approval office No. of approval office Unit category Classification G = gas, D = dust CE 0802 II 2 c G Exe II (B) T3 ATEX 2456 X Explosion group Temperature classification ATEX approval no. Experienced system designers and consultants often seek advice with the responsible approval offices in order to specify the correct version of the required explosion proof fan execution. 239

Explosion proof fans EX 140 1~ Certified according to ATEX Suitable for use in battery-charging rooms, fume cupboards and similar environments Compact design EX fans can be installed in any position, and their compact design makes them easy to install using the DS flexible connections. These fans are powered by specially manufactured EX-motors, and have impellers with forward-curved blades. The fan casing is cast in silumin, and the impeller is manufactured from aluminium. The single-phase fans have a capacitor enclosed in sand, which is approved for EX certification. Explosion proof versions comply with EN 50014, EN 50017, EN 50019, EN 1127- and EN 13463-1. Improved safety in accordance with EEx eq II T3. NOTE! EX 140-180 fans are not speed controllable. EX 140-4C EX 140-2C EX 140-4 EX 140-2 Voltage/Frequency V/50 Hz 230 230 400 400 Phase ~ 1 1 3 3 Power W 101 674 105 643 Current A 0,61 3,00 0,37 1,22 Maximum air flow m 3 /s (m 3 /h) 0,15 (555) 0,32 (1165) 0,16 (580) 0,33 (1180) R.p.m. min -1 1465 2885 1467 2890 Ambient temperature C -20 till +40-20 till +40-20 till +40-20 till +40 Sound pressure level at 3 m * db(a) 43 49 41 47 Weight kg 7 8 7 8 EX capacitor 400 V μf 8 25 - - Insulation class, motor F F F F Enclosure class, motor IP 54 IP 54 IP 54 IP 54 Motor protection MSEX 0,4-0,63 MSEX 2,5-4,0 MSEX 0,25-0,4 MSEX 1,0-1,6 Certificate SP03ATEX3101X SP03ATEX3101X SP03ATEX3101X SP03ATEX3101X Wiring diagram p. 11-17 9 9 10 10 * According to 20 m 2 Sabine EX 140-4C/EX 140-2C EX 140-4/EX 140-2 240

Explosion proof fans DS-Ex p. 482 IS p. 489 US p. 489 SG p. 476 EX 140-4C L wa Inlet db(a) 59 23 38 47 52 55 52 46 36 L wa Outlet db(a) 67 45 54 60 63 61 55 49 42 L wa Surrounding db(a) 50 19 22 31 43 43 46 41 32 Measuring point: q v = 0,08 m 3 /s, P s = 135 Pa EX 140-2C L wa Inlet db(a) 72 34 52 62 62 66 69 63 57 L wa Outlet db(a) 79 63 66 72 73 72 73 65 61 L wa Surrounding db(a) 56 22 34 42 50 48 52 47 43 Measuring point: q v = 0,16 m 3 /s, P s = 645 Pa VK p. 485 LDC p. 469 FFR p. 470 EX 140-4 L wa Inlet db(a) 60 23 42 50 50 58 50 44 35 L wa Outlet db(a) 65 43 57 58 59 59 52 46 39 L wa Surrounding db(a) 48 13 23 37 40 43 43 41 32 Measuring point: q v = 0,079 m 3 /s, P s = 141 Pa EX 140-2 L wa Inlet db(a) 72 32 50 62 62 66 67 62 57 L wa Outlet db(a) 78 63 67 72 73 71 70 63 59 L wa Surrounding db(a) 54 21 31 42 47 47 50 46 42 Measuring point: q v = 0,15 m 3 /s, P s = 653 Pa MSEX p. 465 241

Explosion proof fans EX 180 Certified according to ATEX Suitable for use in battery-charging rooms, fume cupboards and similar environments Compact design EX fans can be installed in any position, and their compact design makes them easy to install using the DS flexible connections. These fans are powered by specially manufactured EX-motors, and have impellers with forward-curved blades. The fan casing is cast in silumin, and the impeller is manufactured from aluminium. The single-phase fans have a capacitor enclosed in sand, which is approved for EX certification. Explosion proof versions comply with EN 50014, EN 50017, EN 50019, EN 1127- and EN 13463-1. Improved safety in accordance with EEx eq II T3. EX 180-4 NOTE! EX 140-180 fans are not speed controllable. EX 180-4C EX 180-4C EX 180-4 Voltage/Frequency V/50 Hz 230 400 Phase ~ 1 3 Power W 178 161 Current A 0,87 0,39 Maximum air flow m 3 /s (m 3 /h) 0,24 (850) 0,21 (781) R.p.m. min -1 1417 1435 Ambient temperaure C -20 till +40-20 till +40 Sound pressure level at 3 m * db(a) 41 42 Weight kg 7 7 EX capacitor 400 V μf 8 - Insulation class, motor F F Enclosure class, motor IP 54 IP 54 Motor protection MSEX 0,63-1,0 MSEX 0,4-1,0 Certificate SP03ATEX3101X SP03ATEX3101X Wiring diagram p. 11-17 9 10 * According to 20 m 2 Sabine EX 180-4C EX 180-4 242

Explosion proof fans DS-Ex p. 482 IS p. 489 US p. 489 SG p. 476 EX 180-4C L wa Inlet db(a) 62 24 41 52 54 58 54 50 45 L wa Outlet db(a) 67 47 57 60 61 64 54 50 42 L wa Surrounding db(a) 48 23 25 32 43 44 40 37 31 Measuring point: q v = 0,10 m 3 /s, P s = 232 Pa EX 180-4 L wa Inlet db(a) 62 24 47 56 54 58 54 49 42 L wa Outlet db(a) 70 52 63 65 63 61 54 48 42 L wa Surrounding db(a) 49 13 30 36 43 45 42 37 29 Measuring point: q v = 0,10 m 3 /s, P s = 200 Pa VK p. 485 LDC p. 469 FFR p. 470 MSEX p. 465 243

Explosion proof, axial fans AW 355, 420 EX Certified according to ATEX Speed-controllable Integral thermal contact The AW EX fans have speed controllable external rotor motors. The fans have a square plate for wall mounting and are painted in standard black. The casing and impeller is manufactured from sheet steel. To protect the motor from overheating, integral thermistors are fitted with external leads which must be connected to the U- EK230E motor protection relay. The AW 355/420D4-2-EX fan motor is approved according to ATEX. Useful for Zone 1 and 2; temperature class T1, T2, T3 or T4. Ignition protection "e". Accessories for Ex-fans only on request. AW 355D4-2-EX AW 420D4-2-EX Voltage/Frequency V/50 Hz 400 400 Phase ~ 3 3 Power W 140 360 Current A 0,28 0,61 Maximum air flow m 3 /s (m 3 /h) 0,72 (2600) 1,28 (4600) R.p.m min -1 1380 1320 Max temp. of transported air C 40 40 when speed-controlled C 40 40 Sound pressure level at 3 m * db(a) 61 63 Weight kg 9 10 Insulation class, motor F F Enclosure class, motor IP 54 IP 44 Motor protection U-EK230E U-EK230E Speed control, five-step Transformer RTRD 2 + U-EK230E RTRD 2 + U-EK230E Speed control, five-step high/low Transformer RTRDU 2 + U-EK230E RTRDU 2 + U-EK230E Certificate ZELM 05 ATEX0279X ZELM 05 ATEX0279X Wiring diagram p. 11-17 19 19 * According to 20 m 2 Sabine AW 355D-2-EX Airflow AW 420D4-2-EX Airflow 244

Explosion proof, axial fans VK p. 485 AW 355D4-2-EX L wa Inlet/Outlet db(a) 68 38 43 61 62 64 61 53 46 Measuring point: q v = 0,58 m 3 /s, P s = 56 Pa AW 420D4-2-EX L wa Inlet/Outlet db(a) 70 37 44 58 62 67 61 53 47 Measuring point: q v = 1,15 m 3 /s, P s = 44 Pa U-EK230E p. 461 RTRD p. 455 RTRDU p. 455 245

Explosion proof, axial fans AW 550, 650 EX Certified according to ATEX Speed-controllable Integral thermal contacts The AW EX fans have a speed controllable external rotor motor. The fans have a square plate for wall mounting and are painted in standard black. The casing and impeller is manufactured from sheet steel. To protect the motor from overheating, integral thermistors are fitted with external leads which must be connected to the U- EK230E motor protection relay. The AW 550/650D6-Ex fan motor is approved according to ATEX. Useful for Zone 1 and 2; temperature class T1, T2 or T3. Ignition protection "e". Accessories for Ex-fans only on request. AW 550D6-2-EX AW 650D6-2-EX Voltage/Frequency V/50 Hz 400 400 Phase ~ 3 3 Power W 370 600 Current A 0,78 1,20 Maximum air flow m 3 /s (m 3 /h) 2,06 (7400) 3,19 (11500) R.p.m min -1 860 920 Max temp. of transported air C 40 40 Max temp. of transported air when speed-controlled C 40 40 Sound pressure level at 3 m * db(a) 60 71 Weight kg 13 20 Insulation class, motor F F Enclosure class, motor IP 44 IP 44 Motor protection U-EK230E U-EK230E Speed control, five-step Transformer RTRD 2 + U-EK230E RTRD 2 + U-EK230E Speed control, five-step high/low Transformer RTRDU 2 + TUS 230E RTRDU 2 + U-EK230E Certificate ZELM 05 ATEX0279X ZELM 05 ATEX0279X Wiring diagram p. 11-17 19 19 * According to 20 m 2 Sabine AW 550D6-2-EX Airflow AW 650D6-2-EX Airflow 246

Explosion proof, axial fans VK p. 485 AW 550D6-2-EX L wa Inlet/Outlet db(a) 67 51 56 57 60 63 60 54 44 Measuring point: q v = 1,75 m 3 /s, P s = 47 Pa AW 650D6-2-EX L wa Inlet/Outlet db(a) 78 60 63 70 72 72 70 66 55 Measuring point: q v = 2,50 m 3 /s, P s = 57 Pa U-EK230E p. 461 RTRD p. 455 RTRDU p. 455 247

200 Explosion proof fans RVK 315 EX According ATEX 95 Speed controllable Can be installed in any position Motorprotection over cold conductor The RVK fans are designed for installation in ducts. The fans have backward curved blades and external rotor motors. The RVK 315 Y4 can be controlled by reducing voltage via 5- step controller in combination with the Systemair Standard tripping unit UEK. The RVK 315Y4 fan complies with the ATEX regulation. The fans could be used for zone 1 and zone 2; temperature class T1, T2 and T3. The casing is made from conducting plastic. The fans are certified under the no ZELM 03 ATEX 0198x. Explosion proof version comply with EN 50014, EN 50019, EN 13463-1 and EN 13463-5. Improved safety in accordance with EEx e II T3. RVK 315Y4-A1 Voltage/Frequency V/Hz 400 Phase ~ 3 Power W 90 Current A 0,25 Maximum air flow m 3 /s (m 3 /h) 0,28 (1020) R.p.m. min -1 1400 Max. temp of transported air C 40 Max. temp of transported air when speed-controlled C 40 Sound pressure level at 3 m * db(a) 41 Weight kg 7 Insulation class B Enclosure class IP 44 Capacitor μf - Motor protection U-EK230E Certificate ZELM 03 ATEX 0198X Speed control, five step Transformer RTRD 2 + U-EK 230E Speed control, five step high/low Transformer RTRDU 2 + U-EK 230E Wiring diagram p. 11-17 19 * According to 20 m 2 Sabine 225 ø315 60 ø315 ø405 30 30 263 248

Explosion proof fans 0 220 440 660 880 1100 280 RVK 315Y4-A1 240 FK p. 474 200 160 SG p. 476 120 80 40 0 0 0,06 0,12 0,18 0,24 0,3 160 120 80 40 0 RVK 315Y4-A1 L wa Duct db(a) 58 40 45 52 51 49 48 42 36 L wa Surrounding db(a) 48 45 26 29 37 41 37 33 27 With LDC 315-900 L wa Duct db(a) 46 40 40 43 33 26 16 22 18 Measuring point: q v = 0,21 m 3 /s, P s = 100 Pa U-EK230E p. 461 RTRD p. 455 RTRDU p. 455 249

Explosion proof, rectangular fans KTEX 50-25/50-30 Certified according to ATEX Speed controllable Integral thermistors (PTC *) KTEX fans can be installed in any position and are easy to connect using the DS flexible connections. These fans have impellers with forward-curved blades and external rotor motors. The casing is manufactured from galvanised sheet steel, with a copper inlet cone. To protect the motor from overheating, these fans have integral thermistors (PTC) with external leads which must be connected to the U-EK230E motor protection relay. Explosion proof versions comply with EN 50014, EN 50019, EN 1127-1 and EN 13463-1. Improved safety in accordance with EEx e II T3. * Positive Temperature Coefficient KTEX 50-25-4 KTEX 50-30-4 Voltage/Frequency V/50 Hz 400 400 Phase ~ 3 3 Power W 490 900 Current A 0,85 1,80 Maximum air flow m 3 /s (m 3 /h) 0,467 (1682) 0,66 (2376) R.p.m. min -1 1290 1355 Ambient temp. C -20 till +40-20 till +40 Sound pressure level at 3 m * db(a) 57 58 Weight kg 17 22,5 Insulation class, motor F F Enclosure class, motor IP 44 IP 44 Motor protection U-EK230E U-EK230E Certificate SP 04ATEX3105X SP 03ATEX3103X Speed control, five-step Transformer RTRD 2 + U-EK230E RTRD 4 + U-EK230E Speed control, five-step high/low Transformer RTRDU 2 + U-EK230E RTRDU 4 + U-EK230E Wiring diagram p. 11-17 11 11 * According to 20 m 2 Sabine KTEX 50-25-4 KTEX 50-30-4 250

Explosion proof, rectangular fans DS-Ex p. 482 VK p. 485 LDR p. 478 FFK p. 477 Min. static back pressure: 90 Pa KTEX 50-25-4 L wa Inlet db(a) 72 55 66 66 61 62 63 61 58 L wa Outlet db(a) 72 46 60 64 66 67 64 62 58 L wa Surrounding db(a) 64 57 59 57 53 53 50 46 43 With LDR 50-25 L wa Inlet db(a) 60 55 56 51 36 37 43 46 46 L wa Outlet db(a) 56 46 50 49 41 42 44 47 46 Measuring point: q v = 0,29 m 3 /s, P s = 258 Pa KTEX 50-30-4 Min. static back pressure: 140 Pa L wa Inlet db(a) 73 54 65 64 63 67 67 65 61 L wa Outlet db(a) 79 48 62 67 70 74 71 70 65 L wa Surrounding db(a) 65 54 56 61 55 58 53 49 46 With LDR 50-30 L wa Inlet db(a) 61 54 57 49 43 36 50 51 50 L wa Outlet db(a) 62 48 54 52 50 43 54 56 54 Measuring point: q v = 0,35 m 3 /s, P s = 374 Pa U-EK230E p. 461 RTRD p. 455 RTRDU p. 455 251

Explosion proof, rectangular fans KTEX 60-30/60-35/70-40 Certified according to ATEX Speed controllable Integral thermistors (PTC *) KTEX fans can be installed in any position and are easy to connect using the DS flexible connections. These fans have impellers with forward-curved blades and external rotor motors. The casing is manufactured from galvanised sheet steel, with a copper inlet cone. To protect the motor from overheating, these fans have integral thermistors (PTC) with external leads which must be connected to the U-EK230E motor protection relay. Explosion proof versions comply with EN 50014, EN 50019, EN 1127-1 and EN 13463-1. Improved safety in accordance with EEx e II T3. * Positive Temperature Coefficient KTEX 60-30-4 60-35-4 70-40-6 Voltage/Frequency V/50 Hz 400 400 400 Phase ~ 3 3 3 Power W 1300 2100 1800 Current A 2,20 3,90 3,70 Maximum air flow m 3 /s (m 3 /h) 0,82 (2952) 1,039 (3740) 1,375 (4950) R.p.m. min -1 1330 1380 840 Max. temp of transported air C -20 till +40-20 till +40-20 till +40 Sound pressure level 3 m * db(a) 58 62 55 Weight kg 30,5 35,5 47,7 Insulation class, motor F F F Enclosure class, motor IP 44 IP 44 IP 44 Motor protection U-EK230E U-EK230E U-EK230E Certificate SP 04ATEX3107X SP 04ATEX3109X SP 04ATEX3111X Speed control, five-step Transformer RTRD 4 + U-EK230E RTRD 7 + U-EK230E RTRD 4 + U-EK230E Speed control, five-step high/low Transformer RTRDU 4 + U-EK230E RTRDU 7 + U-EK230E RTRDU 4 + U-EK230E Wiring diagram p. 11-17 11 11 11 * According to 20 m 2 Sabine A B c/c C D E F c/c G H KTEX 60-30-4 642 598 620 640 46 298 320 340 KTEX 60-35-4 717 598 620 640 51 348 370 390 KTEX 70-40-6 787 698 720 740 77 398 420 440 252

Explosion proof, rectangular fans DS-Ex p. 482 VK p. 485 LDR p. 478 FFK p. 477 Min. static back pressure: 225 Pa Min. static back pressure: 220 Pa KTEX 60-30-4 L wa Inlet db(a) 75 57 66 63 64 68 68 66 63 L wa Outlet db(a) 89 60 70 75 80 84 83 82 77 L wa Surrounding db(a) 65 55 60 57 55 56 56 51 47 With LDR 60-30 L wa Inlet db(a) 62 57 58 48 44 37 51 52 52 L wa Outlet db(a) 73 60 62 60 60 53 66 68 66 Measuring point: q v = 0,36 m 3 /s, P s = 493 Pa KTEX 60-35-4 L wa Inlet db(a) 78 59 67 66 66 69 71 74 70 L wa Outlet db(a) 85 54 68 71 77 78 77 80 75 L wa Surrounding db(a) 69 49 64 59 57 60 60 62 57 With LDR 60-35 L wa Inlet db(a) 68 59 60 53 49 51 58 64 62 L wa Outlet db(a) 73 54 61 58 60 60 64 70 67 Measuring point: q v = 0,42 m 3 /s, P s = 586 Pa U-EK230E p. 461 KTEX 70-40-6 L wa Inlet db(a) 71 51 58 60 61 63 63 67 62 L wa Outlet db(a) 77 52 59 65 71 69 68 71 66 L wa Surrounding db(a) 62 42 54 54 54 54 52 54 50 With LDR 70-40 L wa Inlet db(a) 63 51 51 49 47 49 53 59 56 L wa Outlet db(a) 67 52 52 54 57 55 58 63 60 Measuring point: q v = 0,58 m 3 /s, P s = 361 Pa RTRD p. 455 RTRDU p. 455 253

Explosion proof, roof fans DVEX 315-355D4 Certified according to ATEX Speed-controllable Integral thermistors (PTC *) The DVEX models have impellers with backward-curved blades and external rotor motors. The casing is made from aluminium and the base frame from galvanised steel, with a copper inlet cone. The fans are tiltable for easy inspection and maintenance. To protect the motor from overheating these fans have integral thermistors (PTC) with external leads which must be connected to the U-EK230E motor protection relay. Explosions proof version comply with EN 50014, 50019, EN 1127-1 and EN 13463-1. Improved safety in accordance with EEx e II T3. Certified according to ATEX. * Positive Temperature Coefficient DVEX 315D4 DVEX 355D4 Voltage/Frequency V/50 Hz 400 400 Phase ~ 3 3 Power W 120 260 Current A 0,23 0,47 Maximum air flow m 3 /s (m 3 /h) 0,41 (1475) 0,69 (2485) R.p.m min -1 1340 1340 Max. temp of transported air C -20 till +40-20 till +40 Sound pressure level 10 m db(a) 36 41 Weight kg 21,2 31,5 Insulation class, motor F F Enclosure class, motor IP 44 IP 44 Motor protection U-EK230E U-EK230E Speed control, five-step Transformer RTRD 2 + U-EK230E RTRD 2 + U-EK230E Speed control, five-step high/low Transformer RTRDU 2 + U-EK230E RTRDU 2 + U-EK230E Certificate SP 04ATEX3113X SP 04ATEX3114X Roof curb TG 400 TG 540 Wiring diagram p. 11-17 11 11 When using the transformer RTRD or an RTRDU together with an Ex motor protection type U-EK230E, the two terminals in the transformer marked "TK" must be bridged. A C F PG 16 M B L F ød E K øi (4x) A B C D E F G I K L M DVEX 315 560 382 470 192 330 207 287 10 406 304 330 DVEX 355 720 442 618 226 450 281 347 12 566 450 390 254

Explosion proof, roof fans TG p. 491 BTG p. 491 DVEX 315D4 L wa Inlet db(a) 64 48 53 56 60 55 53 49 37 L wa Surrounding db(a) 67 48 53 56 63 63 59 52 40 With TG 400-800 L wa Inlet db(a) 55 47 51 51 43 30 27 33 33 Measuring point: q v = 0,22 m 3 /s, P s = 162 Pa DVEX 355D4 L wa Inlet db(a) 68 50 58 61 63 60 58 52 43 L wa Surrounding db(a) 72 51 58 64 67 67 63 55 48 With TG 540-800 L wa Inlet db(a) 61 50 55 55 54 48 50 47 38 Measuring point: q v = 0,42 m 3 /s, P s = 220 Pa U-EK230E p. 461 RTRD p. 455 RTRDU p. 455 255

Explosion proof, roof fans DVEX 400-500D4 Certified according to ATEX Speed-controllable Integral thermistors (PTC *) The DVEX models have impellers with backward-curved blades and external rotor motors. The casing is made from aluminium and the base frame from galvanised steel, with a copper inlet cone. The fans are tiltable for easy inspection and maintenance. To protect the motor from overheating these fans have integral thermistors (PTC) with external leads which must be connected to the U-EK230E motor protection relay. Explosions proof version comply with EN 50014, 50019, EN 1127-1 and EN 13463-1. Improved safety in accordance with EEx e II T3. Certified according to ATEX. * Positive Temperature Coefficient DVEX 400D4 450D4 500D6 Voltage/Frequency V/50 Hz 400 400 400 Phase ~ 3 3 3 Power W 390 720 380 Current A 0,76 1,42 0,87 Maximum air flow m 3 /s (m 3 /h) 0,85 (3060) 1,27 (4570) 1,08 (3890) R.p.m min -1 1350 1360 870 Max. temp of transported air C -20 till +40-20 till +40-20 till +40 Sound pressure level 10 m db(a) 46 49 40 Weight kg 32 36 44 Insulation class, motor F F F Enclosure class, motor IP 44 IP 44 IP 44 Motor protection U-EK230E U-EK230E U-EK230E Speed control, five-step Transformer RTRD 2 + U-EK230E RTRD 2 + U-EK230E RTRD 2 + U-EK230E Speed control, five-step high/low Transformer RTRDU 2 + U-EK230E RTRDU 2 + U-EK230E RTRDU 2 + U-EK230E Certificate SP 05ATEX3115X SP 04ATEX3116X SP 04ATEX3117X Roof curb TG 540 TG 640 TG 640 Wiring diagram p. 11-17 11 11 11 When using the transformer RTRD or an RTRDU together with an Ex motor protection type U-EK230E, the two terminals in the transformer marked "TK" must be bridged. F PG 16 A C M B L F ød E K øi (4x) A B C D E F G I K L M P DVEX 400 720 442 618 255 450 100 347 12 566 466 390 598 DVEX 450 900 517 730 289 535 97 436 12 636 490 465 668 DVEX 500 900 517 730 325 535 97 436 12 636 490 465 668 256

Explosion proof, roof fans TG p. 491 BTG p. 491 DVEX 400D4 L wa Inlet db(a) 72 58 62 66 67 64 62 55 47 L wa Surrounding db(a) 77 57 62 69 72 72 67 59 50 With TG 640-800 L wa Inlet db(a) 67 57 60 62 60 55 56 51 43 Measuring point: q v = 0,45 m 3 /s, P s = 275 Pa DVEX 450D4 L wa Inlet db(a) 76 58 64 71 71 68 66 58 52 L wa Surrounding db(a) 80 58 67 74 75 75 70 62 53 With TG 640-800 L wa Inlet db(a) 71 57 62 67 64 59 60 54 48 Measuring point: q v = 0,70 m 3 /s, P s = 360 Pa U-EK230E p. 461 DVEX 500D6 L wa Inlet db(a) 69 53 58 65 64 60 55 47 42 L wa Surrounding db(a) 71 52 55 68 66 65 58 50 43 With TG 640-800 L wa Inlet db(a) 64 52 56 61 57 51 49 43 38 Measuring point: q v = 0,52 m 3 /s, P s = 192 Pa RTRD p. 455 RTRDU p. 455 257

Explosion proof, roof fans DVEX 560-630 Certified according to ATEX Speed-controllable Integral thermistors (PTC *) The DVEX models have impellers with backward-curved blades and external rotor motors. The casing is made from aluminium and the base frame from galvanised steel, with a copper inlet cone. To protect the motor from overheating these fans have integral thermistors (PTC) with external leads which must be connected to the U-EK230E motor protection relay. Explosions proof version comply with EN 50014, 50019, EN 1127-1 and EN 13463-1. Improved safety in accordance with EEx e II T3. Certified according to ATEX. * Positive Temperature Coefficient DVEX 560D6 DVEX 630D6 Voltage/Frequency V/50 Hz 400 400 Phase ~ 3 3 Power W 620 1070 Current A 1,23 2,15 Maximum air flow m 3 /s (m 3 /h) 1,62 (5830) 2,2 (7920) R.p.m min -1 900 885 Max. temp of transported air C -20 till +40-20 till +40 Sound pressure level 10 m db(a) 44 47 Weight kg 61,4 65 Insulation class, motor F F Enclosure class, motor IP 44 IP 44 Motor protection U-EK230E U-EK230E Speed control, five-step Transformer RTRD 2 + U-EK230E RTRD 4 + U-EK230E Speed control, five-step high/low Transformer RTRDU 2 + U-EK230E RTRDU 4 + U-EK230E Certificate SP 05ATEX3118X SP 04ATEX3119X Wiring diagram p. 11-17 11 11 When using the transformer RTRD or an RTRDU together with an Ex motor protection type U-EK230E, the two terminals in the transformer marked "TK" must be bridged. G PG 16 A B C E F G øi (4x) ød A B C ød E F G øh DVEX 560 1150 955 560 364 939 750 293 14(4x) DVEX 630 1150 955 560 410 939 750 293 14(4x) 258

Explosion proof, roof fans TG p. 491 BTG p. 491 DVEX 560D L wa Inlet db(a) 70 58 59 66 63 64 59 52 45 L wa Surrounding db(a) 75 57 61 69 71 70 63 57 55 With TG 940-1230 L wa Inlet db(a) 66 58 57 62 55 57 54 48 41 Measuring point: q v = 0,96 m 3 /s, P s = 224 Pa DVEX 630D6 L wa Inlet db(a) 73 53 64 69 66 64 61 60 54 L wa Surrounding db(a) 78 53 65 71 74 71 65 64 57 With TG 940-1230 L wa Inlet db(a) 68 53 62 65 58 57 56 56 50 Measuring point: q v = 1,05 m 3 /s, P s = 318 Pa U-EK230E p. 461 RTRD p. 455 RTRDU p. 455 259

Explosion proof, roof fans DVV-EX 560 Explosion proof roof fan, vertical exhaust, casing manufactured from sea water resistant aluminium. Base frame manufactured from galvanized steel. Inlet cone from copper. Tested in accordance with ATEX guideline 94-9-EG Extraction of explosion hazardous atmosphere in zone 1, category 2G and zone 2, category 3G. Applicable in zone 1 and 2 for temperature classes T1, T2, T3 and T4. Radial impeller with backward curved blades, manufactured from galvanized steel. IEC-Ex (d) standard motor, speed controllable by frequency inverters. Mounted EX-terminal box. Certificate SIQ 06 ATEX 062X DVV-EX 560D4 560D4-6 560D4-8 560D6 560D6-8 560D8 Voltage/Frequency V/50 Hz 400 400 400 400 400 400 Phase ~ 3 3 3 3 3 3 Power at shaft kw 1,5 1,7/1,1 1,6/1,0 0,75 0,8/0,6 0,37 Current A 3,25 3,7/2,8 3,35/3,2 2,1 2,2/2,1 1,25 Maximum air flow m 3 /s 2,64 2,64/1,8 2,64/1,35 1,81 1,81/1,35 1,35 Maximum air flow m 3 /h 9500 9500/6500 9500/4850 6500 6500/4850 4850 R.p.m min -1 1405 1450/960 1430/720 915 950/710 685 Max. temp. of transported air C 40 40 40 40 40 40 Sound pressure level at 4/10 m db(a) 67/59 67/59-60/52 67/59-55/47 60/52 60/52-55/47 55/47 Weight kg 72 86 86 69 82 69 Insulation class, motor F F F F F F Enclosure class, motor IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) Wiring diagram p. 11-17 13 15 14 13 15 13 808 20 750 14 12xM8 438 600 706 260

Explosion proof, roof fans VKS-EX p. 493 DVV-EX 560 88 ASFV p. 496 4-pol 81 6-pol 89 76 8-pol 77 82 ASS-EX p. 493 FDV/F p. 494 DVV-EX 560 4-pol L wa Inlet db(a) 88 61 73 81 82 81 79 76 68 L wa Surrounding db(a) 90 63 75 83 84 83 81 78 70 Measuring point: q v = 2,1 m 3 /s, P s = 310 Pa FDVE/F p. 494 DVV-EX 560 6-pol L wa Inlet db(a) 81 58 67 73 77 72 70 68 56 L wa Surrounding db(a) 83 60 69 75 79 74 72 70 58 Measuring point: q v = 1,50 m 3 /s, P s = 125 Pa DVV-EX 560 8-pol L wa Inlet db(a) 76 58 64 67 71 68 68 63 52 L wa Surrounding db(a) 78 60 66 69 73 70 70 65 54 Measuring point: q v = 1,20 m 3 /s, P s = 50 Pa SSV/F p. 494 SSVE/F p. 495 ASK p. 493 261

Explosion proof, roof fans DVV-EX 630-K Explosion proof roof fan, vertical exhaust, casing manufactured from sea water resistant aluminium. Base frame manufactured from galvanized steel. Inlet cone from copper. Tested in accordance with ATEX guideline 94-9-EG Extraction of explosion hazardous atmosphere in zone 1, category 2G and zone 2, category 3G. Applicable in zone 1 and 2 for temperature classes T1, T2, T3 and T4. Radial impeller with backward curved blades, manufactured from galvanized steel. IEC-Ex (d) standard motor, speed controllable by frequency inverters. Mounted EX-terminal box. Certificate SIQ 06 ATEX 062X. DVV-EX 630D4-K 630D4-6-K 630D4-8-K 630D6-K 630D6-8-K Voltage/Frequency V/50 Hz 400 400 400 400 400 Phase ~ 3 3 3 3 3 Power at shaft kw 3,0 3,0/2,2 3,6/2,3 1,1 0,8/0,6 Current A 6,4 6,0/5,05 7,3/6,7 3,0 2,2/2,1 Maximum air flow m 3 /s 3,4 () 3,4/2,3 3,4/1,72 2,3 2,3/1,75 Maximum air flow m 3 /h 12300 12300/8200 12300/6200 8200 8200/6200 R.p.m min -1 1400 1465/965 1450/720 915 970/715 Max. temp. of transported air C 40 40 40 40 40 Sound pressure level at 4/10 m db(a) 71/63 71/63-61/53 71/63-55/47 61/53 61/53-55/47 Weight kg 110 153 153 99 109 Insulation class, motor F F F F F Enclosure class, motor IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) Wiring diagram p. 11-17 13 15 14 13 15 1100 40 958 18 12xM8 541 880 990 262

Explosion proof, roof fans VKS-EX p. 493 4-pol ASFV p. 496 6-pol 8-pol ASS-EX p. 493 FDV/F p. 494 DVV-EX 630-K 4-pol L wa Inlet db(a) 92 65 77 85 86 85 83 80 72 L wa Surrounding db(a) 94 67 79 87 88 87 85 82 74 Measuring point: q v = 2,80 m 3 /s, P s = 400 Pa DVV-EX 630-K 6-pol L wa Inlet db(a) 82 58 69 71 78 73 72 68 55 L wa Surrounding db(a) 84 60 71 73 80 75 74 70 57 Measuring point: q v = 1,40 m 3 /s, P s = 350 Pa DVV-EX 630-K 8-pol L wa Inlet db(a) 76 59 65 67 71 69 69 61 50 L wa Surrounding db(a) 78 61 67 69 73 71 71 63 52 Measuring point: q v = 0,98 m 3 /s, P s = 200 Pa FDVE/F p. 494 SSV/F p. 494 SSVE/F p. 495 ASK p. 493 263

Explosion proof, roof fans DVV-EX 630 Explosion proof roof fan, vertical exhaust, casing manufactured from sea water resistant aluminium. Base frame manufactured from galvanized steel. Inlet cone from copper. Tested in accordance with ATEX guideline 94-9-EG Extraction of explosion hazardous atmosphere in zone 1, category 2G and zone 2, category 3G. Applicable in zone 1 and 2 for temperature classes T1, T2, T3 and T4. Radial impeller with backward curved blades, manufactured from galvanized steel. IEC-Ex (d) standard motor, speed controllable by frequency inverters. Mounted EX-terminal box. Certificate SIQ 06 ATEX 062X DVV-EX 630D4 630D4-8 630D6 630D6-8 Voltage/Frequency V/50 Hz 400 400 400 400 Phase ~ 3 3 3 3 Power at shaft kw 5,5 5,5/1,3 2,2 2,0/1,5 Current A 10,9 11/4 5,0 5,5/5,05 Maximum air flow m 3 /s 5,3 5,3/2,6 3,4 3,4/2,6 Maximum air flow m 3 /h 19100 19100/9300 12300 12300/9300 R.p.m min -1 1435 1455/720 960 975/725 Max. temp. of transported air C 40 40 40 40 Sound pressure level at 4/10 m db(a) 80/72 80/72-58/50 69/61 69/61-58/50 Weight kg 130 145 106 135 Insulation class, motor F F F F Enclosure class, motor IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) Wiring diagram p. 11-17 13 14 13 15 Certified according to SIQ 06 ATEX 062X 1100 40 958 18 12xM8 541 880 990 264

Explosion proof, roof fans VKS-EX p. 493 4-pol 6-pol ASFV p. 496 8-pol ASS-EX p. 493 FDV/F p. 494 DVV-EX 630 4-pol L wa Inlet db(a) 100 73 85 93 94 93 91 88 80 L wa Surrounding db(a) 103 76 88 96 97 96 94 91 83 Measuring point: q v = 4,58 m 3 /s, P s = 370 Pa DVV-EX 630 6-pol L wa Inlet db(a) 90 67 76 82 86 81 79 77 65 L wa Surrounding db(a) 92 69 78 84 88 83 81 79 67 Measuring point: q v = 2,31 m 3 /s, P s = 270 Pa DVV-EX 630 8-pol L wa Inlet db(a) 79 61 67 70 74 71 71 66 55 L wa Surrounding db(a) 81 63 69 72 76 73 73 68 57 Measuring point: q v = 1,67 m 3 /s, P s = 170 Pa FDVE/F p. 494 SSV/F p. 494 SSVE/F p. 495 ASK p. 493 265

Explosion proof, roof fans DVV-EX 800-K Explosion proof roof fan, vertical exhaust, casing manufactured from sea water resistant aluminium. Base frame manufactured from galvanized steel. Inlet cone from copper. Tested in accordance with ATEX guideline 94-9-EG Extraction of explosion hazardous atmosphere in zone 1, category 2G and zone 2, category 3G. Applicable in zone 1 and 2 for temperature classes T1, T2, T3 and T4. Radial impeller with backward curved blades, manufactured from galvanized steel. IEC-Ex (d) standard motor, speed controllable by frequency inverters. Mounted EX-terminal box. Certificate SIQ 06 ATEX 062X DVV-EX 800D6-K 800D6-8-K 800D8-K Voltage/Frequency V/50 Hz 400 400 400 Phase ~ 3 3 3 Power at shaft kw 2,2 2,0/1,5 1,1 Current A 5,0 5,5/5,05 3,25 Maximum air flow m 3 /s (m 3 /h) 5,0 (18000) 5,0 (18000)/3,8 (13700) 3,8 (13700) R.p.m min -1 960 975/725 695 Max. temp. of transported air C 40 40 40 Sound pressure level at 4/10 m db(a) 63/55 63/55-54/48 54/48 Weight kg 171 200 157 Insulation class, motor F F F Enclosure class, motor IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) Wiring diagram p. 11-17 13 15 13 Certified according to SIQ 06 ATEX 062X 1272 40 1175 18 16xM10 674 880 990 266

Explosion proof, roof fans VKS-EX p. 493 6-pol ASFV p. 496 8-pol ASS-EX p. 493 FDV/F p. 494 DVV-EX 800-K 6-pol L wa Inlet db(a) 84 60 71 73 80 75 74 70 57 L wa Surrounding db(a) 86 62 73 75 82 77 76 72 59 Measuring point: q v = 4,00 m 3 /s, P s = 250 Pa DVV-EX 800-K 8-pol L wa Inlet db(a) 75 58 64 66 70 68 68 60 49 L wa Surrounding db(a) 77 60 66 68 72 70 70 62 51 Measuring point: q v = 3,10 m 3 /s, P s = 150 Pa FDVE/F p. 494 SSV/F p. 494 SSVE/F p. 495 ASK p. 493 267

Explosion proof, roof fans DVV-EX 800 Explosion proof roof fan, vertical exhaust, casing manufactured from sea water resistant aluminium. Base frame manufactured from galvanized steel. Inlet cone from copper. Tested in accordance with ATEX guideline 94-9-EG Extraction of explosion hazardous atmosphere in zone 1, category 2G and zone 2, category 3G. Applicable in zone 1 and 2 for temperature classes T1, T2, T3 and T4. Radial impeller with backward curved blades, manufactured from galvanized steel. IEC-Ex (d) standard motor, speed controllable by frequency inverters. Mounted EX-terminal box. Certificate SIQ 06 ATEX 062X DVV-EX 800D6 800D6-8 800D8 Voltage/Frequency V/50 Hz 400 400 400 Phase ~ 3 3 3 Power at shaft kw 5,5 5,0/3,5 2,2 Current A 11,8 12/8,8 5,5 Maximum air flow m 3 /s (m 3 /h) 7,0 (25200) 7,0 (25200)/5,3 (19000) 5,3 (19000) R.p.m min -1 955 975/725 710 Max. temp. of transported air C 40 40 40 Sound pressure level at 4/10 m db(a) 72/66 72/66-61/53 61/53 Weight kg 205 265 189 Insulation class, motor F F F Enclosure class, motor IP 54 Ex (d) IP 54 Ex (d) IP 54 Ex (d) Wiring diagram p. 11-17 13 15 13 Certified according to SIQ 06 ATEX 062X 1272 40 1175 18 16xM10 674 880 990 268

Explosion proof, roof fans VKS-EX p. 493 6-pol ASFV p. 496 8-pol ASS-EX p. 493 FDV/F p. 494 DVV-EX 800 6-pol L wa Inlet db(a) 93 70 79 85 89 84 82 80 68 L wa Surrounding db(a) 95 72 81 87 91 86 84 82 70 Measuring point: q v = 4,20 m 3 /s, P s = 600 Pa FDVE/F p. 494 DVV-EX 800 8-pol L wa Inlet db(a) 82 64 70 73 77 74 74 69 58 L wa Surrounding db(a) 84 66 72 75 79 76 76 71 60 Measuring point: q v = 2,50 m 3 /s, P s = 330 Pa SSV/F p. 494 SSVE/F p. 495 ASK p. 493 269

Explosion proof, roof fans DVV-EX 1000 Explosion proof roof fan, vertical exhaust, casing manufactured from sea water resistant aluminium. Base frame manufactured from galvanized steel. Inlet cone from copper. Tested in accordance with ATEX guideline 94-9-EG Extraction of explosion hazardous atmosphere in zone 1, category 2G and zone 2, category 3G. Applicable in zone 1 and 2 for temperature classes T1, T2, T3 and T4. Radial impeller with backward curved blades, manufactured from galvanized steel. IEC-Ex (d) standard motor, speed controllable by frequency inverters. Mounted EX-terminal box. Certificate SIQ 06 ATEX 062X DVV-EX 1000D6 1000D8 Voltage/Frequency V/50 Hz 400 400 Phase ~ 3 3 Power at shaft kw 11,0 5,5 Current A 23,5 13,4 Maximum air flow m 3 /s (m 3 /h) 11,9 (43000) 9,4 (34000) R.p.m min -1 965 715 Max. temp. of transported air C 40 40 Sound pressure level at 4/10 m db(a) 71/63 63/55 Weight kg 370 348 Insulation class, motor F F Enclosure class, motor IP 54 Ex (d) IP 54 Ex (d) Wiring diagram p. 11-17 13 13 Certified according to SIQ 06 ATEX 062X 1500 70 1350 18 16xM10 751 1040 1154 270

Explosion proof, roof fans VKS-EX p. 493 6-pol ASFV p. 496 8-pol ASS-EX p. 493 FDV/F p. 494 DVV-EX 1000 6-pol L wa Inlet db(a) 92 69 78 84 88 83 81 79 67 L wa Surrounding db(a) 94 71 80 86 90 85 83 81 69 Measuring point: q v = 6,94 m 3 /s, P s = 650 Pa DVV-EX 1000 8-pol L wa Inlet db(a) 84 66 72 75 79 76 76 71 60 L wa Surrounding db(a) 86 68 74 77 81 78 78 73 62 Measuring point: q v = 6,11 m 3 /s, P s = 310 Pa FDVE/F p. 494 SSV/F p. 494 SSVE/F p. 495 ASK p. 493 271

Explosion proof fans DKEX 225-280 Certified according to ATEX Suitable for use in battery-charging rooms, fume cupboards and similar environments Integral thermistors (PTC *) Speed-controllable DKEX fans can be installed in any position, and their compact design makes them easy to install using the DS flexible connections. These fans have impellers with forward-curved blades and external rotor motors. The casing is manufactured from galvanised sheet steel with a copper inlet cone. To protect the motor from overheating, integral thermistors (PTC) are fitted with external leads which must be connected to the U-EK230E motor protection relay. Explosion proof versions comply with EN 50014, 50019, EN 1127-1 and EN 13463-1. Improved safety in accordance with EEx e II T3. * Positive Temperature Coefficient DKEX 225-4 DKEX 250-4 DKEX 280-4 Voltage/Frequency V/50 Hz 400 400 400 Phase ~ 3 3 3 Power W 490 900 1300 Current A 0,85 1,80 2,20 Maximum air flow m 3 /s (m 3 /h) 0,41 (1500) 0,73 (2650) 0,82 (2952) R.p.m. min -1 1305 1355 1330 Ambient temperaure C -20 till +40-20 till +40-20 till +40 Sound pressure level at 3 m * db(a) 54 59 61 Weight kg 13 17 24 Insulation class, motor F F F Enclosure class, motor IP 44 IP 44 IP 44 Motor protection U-EK230E U-EK230E U-EK230E Speed control, five-step Transformer RTRD 2 + U-EK230E RTRD 4 + U-EK230E RTRD 4 + U-EK230E Speed control, five-step high/low Transformer RTRDU 2 + U-EK230E RTRDU 4 + U-EK230E RTRDU 4 + U-EK230E Certificate SP 04ATEX3106X SP 03ATEX3104X SP 04ATEX3108X Wiring diagram p. 11-17 11 11 11 * According to 20 m 2 Sabine A B C D E F G H J øk DKEX 225-4 445 280 25-198 147 369 211 180 234 DKEX 250-4 492 315 26 27 218 167 412 239 198 257 DKEX 280-4 547 357 26 18 233 182 455 257 221 287 272

Explosion proof fans USE p. 489 SG p. 476 ISE p. 489 VK p. 485 Min static back pressure: 90 Pa DKEX 225-4 L wa Inlet db(a) 71 46 55 63 60 65 65 62 57 L wa Outlet db(a) 76 45 51 64 68 72 68 67 64 L wa Surrounding db(a) 61 35 44 54 53 56 54 48 44 Measuring point: q v = 0,27 m 3 /s, P s = 290 Pa Min static back pressure: 145 Pa DKEX 250-4 L wa Inlet db(a) 77 50 62 67 66 72 71 69 65 L wa Outlet db(a) 77 48 53 65 68 72 70 69 64 L wa Surrounding db(a) 66 41 43 58 55 62 59 56 48 Measuring point: q v = 0,46 m 3 /s, P s = 339 Pa LDC p. 469 FFR p. 470 U-EK230E p. 461 Min static back pressure: 280 Pa DKEX 280-4 L wa Inlet db(a) 77 51 63 66 65 72 71 68 64 L wa Outlet db(a) 79 49 57 67 71 73 72 71 66 L wa Surrounding db(a) 68 48 52 59 55 63 62 58 57 Measuring point: q v = 0,41 m 3 /s, P s = 500 Pa RTRD p. 455 RTRDU p. 455 273

Explosion proof fans DKEX 315-355 Certified according to ATEX Suitable for use in battery-charging rooms, fume cupboards and similar environments Integral thermistors (PTC *) Speed-controllable DKEX fans can be installed in any position, and their compact design makes them easy to install using the DS flexible connections. These fans have impellers with forward-curved blades and external rotor motors. The casing is manufactured from galvanised sheet steel with a copper inlet cone. To protect the motor from overheating, integral thermistors (PTC) are fitted with external leads which must be connected to the U-EK230E motor protection relay. Explosion proof versions comply with EN 50014, 50019, EN 1127-1 and EN 13463-1. Improved safety in accordance with EEx e II T3. * Positive Temperature Coefficient DKEX 315-4 DKEX 355-6 Voltage/Frequency V/50 Hz 400 400 Phase ~ 3 3 Power W 2100 1800 Current A 3,90 3,70 Maximum air flow m 3 /s (m 3 /h) 1,04 (3744) 1,39 (5005) R.p.m. min -1 1380 840 Ambient temperaure C -20 till +40-20 till +40 Sound pressure level at 3 m * db(a) 64 58 Weight kg 35,5 38,8 Insulation class, motor F F Enclosure class, motor IP 44 IP 44 Motor protection U-EK230E U-EK230E Speed control, five-step Transformer RTRD 7 + U-EK230E RTRD 4 + U-EK230E Speed control, five-step high/low Transformer RTRDU 7 + U-EK230E RTRDU 4 + U-EK230E Certificate SP 04ATEX3110X SP 04ATEX3112X Wiring diagram p. 11-17 11 11 * According to 20 m 2 Sabine A B C D E F G H J øk DKEX 315-4 615 400 26 22 254 203 517 298 247 325 DKEX 355-6 689 450 26 42 278 227 574 325 287 367 274

Explosion proof fans USE p. 489 SG p. 476 ISE p. 489 VK p. 485 Min static back pressure: 250 Pa DKEX 315-4 L wa Inlet db(a) 80 52 69 67 68 72 73 75 71 L wa Outlet db(a) 83 51 65 71 76 75 74 78 72 L wa Surrounding db(a) 71 48 52 58 59 65 64 66 60 Measuring point: q v = 0,51 m 3 /s, P s = 595 Pa DKEX 355-6 L wa Inlet db(a) 76 49 62 62 67 68 68 71 66 L wa Outlet db(a) 78 47 60 65 71 70 69 74 68 L wa Surrounding db(a) 65 37 47 53 59 59 58 59 51 Measuring point: q v = 0,64 m 3 /s, P s = 357 Pa LDC p. 469 FFR p. 470 U-EK230E p. 461 RTRD p. 455 RTRDU p. 455 275