Centrifugal Fans direct driven with scroll. Issue 1.3 November 2012

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1 Centrifugal Fans direct driven with scroll ssue 1.3 November 212 2

2 The overall picture will decide Complete systems by Nicotra Gebhardt Depending on the model of the fan, the efficiency grade N set in accordance with the Er Directive must be achieved from 213 and 215 respectively. Efficiency grade N to Er-Directive Year Centrifugal fans with backward curved blades without housing static The efficiency grade designates a parameter in the calculation of the target energy efficiency of a fan depending on the electric input power when operating at the optimal energy efficiency point. The figure of parameter N corresponds to the target energy efficiency with a power of 1 kw. To make the selection easier for our customers, we offer complete systems as defined by the Er Directive! n order to compare the systems, the total efficiency η e of the fan without speed regulation is considered. h e = u(s) / e with housing static total Centrifugal fans with forward curved blades with housing static total h e = Total efficiency u(s) = Fan gas power when operating at the optimal energy efficiency point e = Electric input power when operating at the optimal energy efficiency point f the system has speed regulation, it will be taken into account with the part load compensation factor C c (see below): Nicotra Gebhardt can supply complete systems in all product categories which meet the Er requirements. We offer highly efficient fan systems with matching components and high efficiency drives belt and direct drive. with integrated or external control to regulate speed. with EC standard motors (E2) or internal rotor motors with brushless DC technology. and with C external rotor motors or brushless DC external rotor motors. Building blocks for best values Thanks to the decades-long experience of Nicotra Gebhardt all the components of our fans contribute to their high performance. mpellers and blades are optimised for turbulence and therefore particularly efficient. n example: With the latest development, the RLM Evo impeller, the free-running centrifugal fans of Nicotra Gebhardt achieve system efficiency grades never reached before. n addition, the brushless DC drives which Nicotra Gebhardt offers for its direct drive fans improve the system efficiency grades. The fan technology of Nicotra Gebhardt delivers highly efficient systems for all applications. η e = u(s) / e(d) C c ed = nput power of speed regulator when operating at the optimal energy efficiency point C c = part load compensation factor without speed regulation: C c = 1 with speed regulation ed 5 kw: C c = 1.4 with speed regulation ed < 5 kw: C c = -.3 ln( ed ) η e n order to take the speed regulation into account via the part load compensation factor C c, the following mathematical losses arise in accordance with the formula prescribed by Er for the following typical motor powers: ed = 4. kw: C c = 1.5 (5 %) ed = 2.2 kw: C c = 1.6 (6 %) ed =. kw: C c = 1.1 (1 %) C c η m η T η r e(d) e u(s)

3 C 6 C 8 C TEX Voltage Brushless-DC External nverter Forward curved blades galvanised sheet steel Backward curved blades coated steel Galvanised steel Coated steel Single inlet Double inlet Er status TEM/REM REM: 22. TEM: REM: RZM RZ RZ DD DDMB DDM Flow rate Media temperature Speed control mpeller Casing material nlet type B

4 Nicotra Gebhardt technologies like... utomated manufacture of compact scroll and impeller with forward curved blades Own C and Brushless-DC motor production for optimal tuniung of motor and fan! proselect Simple and reliable selection proselect is a technical selection program that allows you to configure your own individually designed fan. t provides you with the opportunity to choose from the entire range of fan types and their associated options. The result from proselect is the provision of all the technical data for your fan, including sound level data, dimension specifications and accessories. part from that, as a registered user, your purchase prices are provided. dditionally fully dimensioned drawings in dxf format are available, which can be downloaded and transferred straight into your CD system. So that you can be sure. Models and options that are technically not permissible, are automatically excluded in proselect. So there is no chance that you will configure a wrong device option. You can register as a proselect user with us, which enables us to offer you faster order processing. What this means for you is: The complete configuration of your fan with its associated system accessories and belt drive layout. The possibility to produce fans that operate via a frequency inverter. The option of saving your own fan configuration on our server. The opportunity to modify your saved configuration, even over the phone to your Nicotra Gebhardt representative. 2

5 High performance centrifugal fans DDM double width, double inlet, (DWD), with built-in, optimised external rotor motor, made of galvanised sheet steel; available in various models; mpeller with forward curved blades of galvanised steel plate Fittings ccessories TEM REM RZM DDMB RZ RZ DD DDM High performance centrifugal fans DDMB double width, double inlet, (DWD), with built-in, brushless DC external rotor motor and external commutation unit, made of galvanised sheet steel; available in various models; mpeller with forward curved blades of galvanised steel plate High performance centrifugal fans DD double width, double inlet, (DWD), built-in, optimised internal rotor motor, made of galvanised sheet steel; available in various models; mpeller with forward curved blades of galvanised steel plate High performance centrifugal fans RZ rotavent double inlet, with built-in, low-slip external rotor motor, made of galvanised sheet steel or welded and coated, with multi position feet and connecting flange at discharge; mpeller with true aerofoil blades, welded and painted system rotavent High performance centrifugal fans RZ rotavent double inlet, with built-in, brushless DC external rotor motor and external commutation unit, made of galvanised sheet steel; with multi position feet and connecting flange at discharge; mpeller with true aerofoil blades, welded and painted system rotavent High performance centrifugal fans RZM rotavent double inlet, fan with directly coupled motor fitted on pedestal and base frame, made of galvanised sheet steel with heavy duty reinforced side frame, connecting flange at discharge, mpeller with true aerofoil blades, welded and painted system rotavent High performance centrifugal fans REM/TEM single inlet, with flanged EC standard motor out of air stream, in unterschiedlichen usführungsvarianten, mpeller with true aerofoil blades, welded and painted (REM) or forward curved blades of galvanised steel plate (TEM), with or without pedestal for horizontal or vertical mounting Fittings / ccessories complete system accessories fittings and options Technical Description Descriptions Operating limits Notes 3 Technical Description

6 The best fan for your application! DDM range direct driven fans Direct driven centrifugal fans of DDM range with forward curved impeller directly mounted on the external rotor motor are the ideal solution for your applications in the HVC business. The fact of manufacturing by ourselves each fan component the casing, the impeller and motor enables us to create fans that perfectly meet the requirements of high performances and low power consumptions. The wide range of different versions and motor types allows you to find the fan exactly matching what you really need. You anyway get the generally recognized advantages of the direct drive technology : Maintenance free No transmission losses Long fan life time High reliability Low operating costs nd, more, all the additional product advantages of the DDM range are at your fingertips. Compact casing erodynamically optimized in terms of both airflow and design, scrolls are made of galvanized steel and automatically assembled using an innovative procedure, providing a sturdy and long-lasting product. without welding points for no corrosion troubles high precision manufacturing process for high quality product Real forward curved impeller The impeller has been optimized for the best efficiency, match to the special motor features. We manufacture the high performance impellers through a highly automated and innovative production process. low noise level low power consumption Optimized external rotor motor The fan impeller is directly mounted on the motor thus providing efficient motor cooling by the fan airflow. Motor speed can be adjusted either by the use of transformers and TRC regulators. Motors are generally fitted with thermal protector for against overheating. high reliability and efficiency wide range of operative conditions Vibration isolation The vibration isolation pads of the motor shaft ensures a very low noise during fan operation and no transmission of noise and vibrations to the other parts of the fan, making installation more quiet and comfortable. low noise level no noise and vibrations transmitted to the surrounding structures Easy electrical connection ll fans could be provided with connection box, terminal block or loose cable. wiring diagram sticker, placed on each fan, describes the correct electrical connection. fast and easy wiring safe operation 4

7 rogram overview: DDM range This kind of fans are specially conceived for use in dust-free environments, at temperatures up to +4 C, or higher on selected models. The performance data have been obtained in a laboratory registered by MC for MC 21/ air performance testing. Data are not certified by MC. Fan range DDM mpeller size (width and diameter) up to 15 Speed variation either by step-transformers or stepless External rotor motor with integrated thermal protector The variety of DDM We have the right fan for all your application! Many different sizes, versions and motor types are available in the DDM range. Fan models suitable for 6Hz supply are available ir Flow up to 12, Static pressure up to 8 Version Description Figure DDM Lap-jointed scroll made from galvanized steel and forward curved blades impeller directly mounted on an external rotor motor. +SCT with terminal box mounted +FL with discharge flange mounted +SB with housing feet either mounted or loose 5

8 DDM-12/126 Direct driven centrifugal fans / DDM / 25 DDM 12/126 F 1F 2 2V db V 5 Hz 35 3 DDM 12/126 F 1F 2 2V 23 V 6 Hz 7 db [1] [LO] [H] [2] [LO] 5 [H]

9 DDM-12/126 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 12/126 W Hz W 1/min F 1F 2 2V * [1/2] ~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 12/126 μf V C kg kg/m³ F 1F 2 2V B EXT B 6M21 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 12/127 F 1F 2 2V ±1 8 ±

10 DDM-133/126 Direct driven centrifugal fans / DDM / DDM 133/126 F7 1F 2 4V +FL db V 5 Hz V [B1] DDM 133/126 F7 1F 2 4V +FL 23 V 6 Hz db V [B2]

11 DDM-133/126 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 133/126 W Hz W 1/min F7 1F 2 4V +FL * [B1/B2] 6 2 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 133/126 μf V C kg kg/m³ F7 1F 2 4V +FL B NT B 6M27 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 133/127 F7 1F 2 4V +FL Ø

12 DDM-133/1 Direct driven centrifugal fans / DDM / 4 DDM 133/1 6 1F 2 1V +FL +SCT 23 V 5 Hz 5 DDM 133/1 6 1F 2 1V +FL +SCT 23 V 6 Hz db V V V 1V [C1] db [C2] V V V 5 1V DDM 133/1 C 1F 2 1V +FL 23 V 5 Hz 5 DDM 133/1 C 1F 2 1V +FL 23 V 6 Hz db [C3] db [C4] V 55 14V 62 18V 67 23V DDM 133/1 C6 1F 2 4V +FL 23 V 5 Hz db V [C5] DDM 133/1 C6 1F 2 4V +FL 23 V 6 Hz db 63 6 [C6] V

13 DDM-133/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 133/1 W Hz W 1/min 6 1F 2 1V +FL (2) [C1/C2] 2 1~ 5/ C 1F 2 1V +FL (2) [C3/C4] 2 1~ 5/ C6 1F 2 4V +FL * [C5/C6] 6 2 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 133/1 μf V C kg kg/m³ 6 1F 2 1V +FL F NT B 612LT C 1F 2 1V +FL B EXT B 612FW C6 1F 2 4V +FL B EXT B 612YC (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 133/1 6 1F 2 1V +FL Ø DDM 133/1 C 1F 2 1V +FL Ø DDM 133/1 C6 1F 2 4V +FL Ø

14 DDM-146/1 Direct driven centrifugal fans / DDM / DDM 146/1 8 1F 2 1V +FL db 23 V 5 Hz [D1] V V V V DDM 146/1 C2 1F 2 1V +FL 66 db 23 V 5 Hz [D3] V V 53 14V 57 1V DDM 146/1 C2 1F 2 1V +FL 23 V 6 Hz 77 db [D4] DDM 146/1 C5 1F 4 4V +FL 23 V 5 Hz db [D5] DDM 146/1 C5 1F 4 4V +FL 23 V 6 Hz 63 db [D6] V 57 14V 61 18V 6623V

15 DDM-146/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 146/1 W Hz W 1/min 8 1F 2 1V +FL (2) [D1] ~ C2 1F 2 1V +FL (1) [D3/D4] ~ 5/ C5 1F 4 1V +FL (2) [D5/D6] 2 4 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 146/1 μf V C kg kg/m³ 8 1F 2 1V +FL F NT B 612Z C2 1F 2 1V +FL F EXT B 612YU C5 1F 4 1V +FL B NT B 612MH (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 146/1 8 1F 2 1V +FL Ø DDM 146/1 C2 1F 2 1V +FL Ø DDM 146/1 C5 1F 2 1V +FL Ø

16 DDM-225/24 Direct driven centrifugal fans / DDM / DDM 225/24 E6G334 1F 4 1V +FL +SCT S L 4 W [E1] 7 db 23 V 5 Hz 5 4 DDM 225/24 E6G334 1F 4 1V +FL +SCT S [E2] 23 V 6 Hz db 2 1 1V V V V V 56 1V 56 18V V DDM 225/24 E6G345 1F 4 1V +FL +SCT db [E3] 23 V 5 Hz V V V 66 1V

17 DDM-225/24 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 225/24 W Hz W 1/min E6G334 1F 4 1V +FL +SCT S (2) [E1/E2] 3 4 1~ 5/ E6G345 1F 4 1V +FL +SCT (2) [E3/E4] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 225/24 μf V C kg kg/m³ E6G334 1F 4 1V +FL +SCT S F EXT B 612CT E6G345 1F 4 1V +FL +SCT F EXT B 6M212 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 225/24 E6G334 1F 4 1V +FL +SCT S Ø DDM 225/24 E6G345 1F 4 1V +FL +SCT Ø

18 DDM-28/24 Direct driven centrifugal fans / DDM / L W DDM 28/24 E6G3 1F 4 1V +SCT V 81 db V 5 Hz V [F1] V 14V L DDM 28/24 E6G376 3F 4 2V +SCTV W7 77 4/4 V 5 Hz db [F3] V Y 4V

19 DDM-28/24 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 28/24 W Hz W 1/min E6G3 1F 4 1V +SCT (2) [F1] 6 4 1~ E6G376 3F 4 1V +SCT (1) [F3] 4 3~ D/Y Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 28/24 μf V C kg kg/m³ E6G3 1F 4 1V +SCT F EXT B 612XE E6G376 3F 4 1V +SCT 55 F EXT B 6M2121 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 28/24 E6G334 1F 4 1V +SCT DDM 28/24 E6G376 1F 4 1V +SCT

20 DDM-7/7 Direct driven centrifugal fans / DDM / DDM 7/7 E6G345 1F 4 1V +SCT 64 [G1] db V 5 Hz DDM 7/7 E6G345 1F 4 1V +SCT 23 V 6 Hz V 63 14V 18V 23V 81 1V 6314V 68 18V 23V [G2] 78 db DDM 7/7 E6G334 1F 4 1V +SCT 62 [G3] db 23 V 5 Hz V 6 14V 18V 76 23V DDM 7/7 E6G334 1F 4 1V +SCT V 6 Hz V V V 1V [G4] 76 db DDM 7/7 E5G342 1F 4 1V +SCT 23 V 5 Hz [G5] 2 db V 61 14V 66 18V 7 23V

21 DDM-7/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 7/7 W Hz W 1/min E6G345 1F 4 1V +SCT (2) [G1/G2] ~ 5/ E6G334 1F 4 1V +SCT (2) [G3/G4] 3 4 1~ 5/ E5G342 1F 4 1V +SCT (2) [G5] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 7/7 μf V C kg kg/m³ E6G345 1F 4 1V +SCT F EXT B 6M2WL E6G334 1F 4 1V +SCT F EXT B 6M2Y8 E5G342 1F 4 1V +SCT F EXT B 6M2L7 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 7/7 E6G345 1F 4 1V +SCT DDM 7/7 E6G334 1F 4 1V +SCT DDM 7/7 E5G342 1F 4 1V +SCT

22 DDM-7/7 Direct driven centrifugal fans / DDM / DDM 7/7 E5G331 1F 4 1V +SCT 23 V 5 Hz 67 [G7] 66 db DDM 7/7 E5G331 1F 4 1V +SCT db [G8] 23 V 6 Hz V V 1V 54 14V DDM 7/7 E6G337 1F 4 3V +SCT [G] 23 V 5 Hz db [LO] 6 [ME] [H] 25 DDM 7/7 E5G341 1F 4 3V +SCT 23 V 5 Hz db [G11] [LO] 63[ME] 67 [H]

23 DDM-7/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 7/7 W Hz W 1/min E5G331 1F 4 1V +SCT (2) [G7/G8] ~ 5/ E6G337 1F 4 3V +SCT * [G] ~ E5G341 1F 4 3V +SCT * [G11] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 7/7 μf V C kg kg/m³ E5G331 1F 4 1V +SCT F EXT B 6M2M E6G337 1F 4 3V +SCT F EXT B 6M22U E5G341 1F 4 3V +SCT F EXT B 6M2U8 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 7/7 E5G331 1F 4 1V +SCT DDM 7/7 E6G337 1F 4 3V +SCT DDM 7/7 E5G341 1F 4 3V +SCT

24 DDM-7/7 Direct driven centrifugal fans / DDM / 25 2 DDM 7/7 E6G33 3F 4 1V +SCT [G13] 23/4 V 5 Hz db DDM 7/7 E6G33 3F 4 1V +SCT 23/4 V 6 Hz 76 db [G14] V V DDM 7/7 E5G343 3F 4 1V +SCT 23/4 V 5 Hz db [G15] 3 25 DDM 7/7 E5G343 3F 4 1V +SCT 254/44 V 6 Hz [G16] db V V DDM 7/7 E5G332 1F 6 1V +SCT [G17] 64 db V 5 Hz 67 1V 57 14V 62 18V 23V DDM 7/7 E5G332 1F 6 1V +SCT 23 V 6 Hz 66 [G18] 67 db

25 DDM-7/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 7/7 W Hz W 1/min E6G33 3F 4 1V +SCT * [G13/G14] 3 4 3~ D/Y 5/ E5G343 3F 4 1V +SCT * [G15/G16] ~ D/Y 5/ E5G332 1F 6 1V +SCT (2) [G17/G18] 6 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 7/7 μf V C kg kg/m³ E6G33 3F 4 1V +SCT 55 F EXT B 6M2WM E5G343 3F 4 1V +SCT 55 F EXT B 6M22H E5G332 1F 6 1V +SCT F EXT B 6M2Z4 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 7/7 E6G33 3F 4 1V +SCT DDM 7/7 E5G343 3F 4 1V +SCT DDM 7/7 E5G332 1F 6 1V +SCT

26 DDM-7/ Direct driven centrifugal fans / DDM / 25 DDM 7/ E6G334 1F 4 1V +SCT 23 V 5 Hz 35 DDM 7/ E6G334 1F 4 1V +SCT 23 V 6 Hz [H1] db db [H2] V 57 14V 67 18V 23V DDM 7/ E6G345 1F 4 1V +SCT 23 V 5 Hz db [H3] DDM 7/ E6G345 1F 4 1V +SCT 23 V 6 Hz 76 [H4] 77 db V 6 14V 68 18V 23V

27 DDM-7/ Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 7/ W Hz W 1/min E6G334 1F 4 1V +SCT (2) [H1/H2] 3 4 1~ 5/ E6G345 1F 4 1V +SCT (2) [H3/H4] ~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 7/ μf V C kg kg/m³ E6G334 1F 4 1V +SCT F EXT B 6M2L6 E6G345 1F 4 1V +SCT F EXT B 6M25X (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 7/ E6G334 1F 4 1V +SCT DDM 7/ E6G345 1F 4 1V +SCT

28 DDM-/7 Direct driven centrifugal fans / DDM / DDM /7 E6G351 1F 4 1V +SCT DDM /7 E6G345 1F 4 1V +SCT 23 V 5 Hz db 23 V 5 Hz [1] V 61 14V 18V 78 23V V V db [3] 76 18V V DDM /7 E6G351 1F 4 1V +SCT 23 V 6 Hz db [2] DDM /7 E6G334 1F 4 1V +SCT 23 V 5 Hz db [5] V V V 1V

29 DDM-/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM /7 W Hz W 1/min E6G351 1F 4 1V +SCT (2) [1/2] ~ 5/ E6G345 1F 4 1V +SCT (2) [3] ~ E6G334 1F 4 1V +SCT (2) [5] 3 4 1~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM /7 μf V C kg kg/m³ E6G351 1F 4 1V +SCT F EXT B 6M2M E6G345 1F 4 1V +SCT F EXT B 6M22 E6G334 1F 4 1V +SCT F EXT B 6M2N (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM /7 E6G351 1F 4 1V +SCT DDM /7 E6G345 1F 4 1V +SCT DDM /7 E6G334 1F 4 1V +SCT

30 DDM-/7 Direct driven centrifugal fans / DDM / 4 35 DDM /7 E6G352 1F 4 3V +SCT 23 V 5 Hz [7] db [LO] 6 [ME] 7 [H] DDM /7 E6G232 1F 4 3V db 23 V 5 Hz [] DDM /7 E6G232 1F 4 3V 23 V 6 Hz 77 [1] 77 db [LO] [ME] [H] 77 [LO] [ME] 68 [H] DDM /7 E6G333 1F 6 1V +SCT db 23 V 5 Hz [11] 25 2 DDM /7 E6G333 1F 6 1V +SCT 23 V 6 Hz 68 db [12] V 54 14V 67 18V 23V

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