• Compact scroll
• Impeller with forward curved blades
• Built-in, optimised external rotor motor
• Motor with AC or brushless DC technology
• led light bulbs for home
• Low vibration and low-noise
• Ready to connect, compact and maintenance free

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• Compact scroll
• Impeller with forward curved blades
• Built-in, optimised internal rotor motor
• L ow vibration and low-noise
• Ready to connect, compact and maintenance free

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The EC-motor operates without slip losses and thus consumes significantly less power than conventional AC motors.

Important: This applies for all speeds, i.e. even in partial-load operation! The EC-motor therefore uses less power than the AC motor under all operating conditions and has a significantly higher level of drive system (motor and control) efficiency.

Energy saving concept

• New high efficiency EC-motor
• New compact and streamlined motor design
• High intensity neodymium magnets
• No obstruction of intake due to build-on control unit – less aerodynamic losses

General Features

• Sensorless control
• Simple installation due to plug and play
• IP 54 for complete drive
• Designed for double inlet fans

Interface

• Analogue interface for speed control
• Full MODBUS interface compliancy

High efficiency direct driven centrifugal fan

• Integrated solution
• Top rating efficiency
• Plug and play operation
• No configuration needed
• Low sound level
• High reliability

Download DDMP Catalogue

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Through the combination of two high technologies – the aerodynamics of the rotavent impeller combined with energy efficient IEC motors – Nicotra Gebhardt has developed a series of coupled direct driven centrifugal fans setting new standards for economy and quiet operation.

Your benefits :

• Powerful fan range direct driven with coupling
• Maintenance and wear free drive (no V-belts)
• Short payback time due to high energy saving, especially with long operating periods
• Higher comfort levels through particularly low noise fans and motors
• Problem free speed control from with frequency inverter

Optimal aerodynamics

Low turbulance velocity for both inlet and discharge due to the large free cross section and minimal flow restraint of the impeller, an example of aerodynamics and performance of the rotavent.

Acoustics

Reduction of high frequency noise levels is just one of the advantages of the rotavent, together with optimised motors and frequency inverters. Minimal sound levels due to low blade passing frequencies from the optimised impeller geometry of the rotavent. The impeller has obliquely inclined blades with trailing edges, and the throat plate is inclined opposingly.

High efficiencies

Nicotra Gebhardt fans of the RZA rotavent range are operating at high efficiency in wide area of the fan curve

Wear-free drive by direct coupling

The use of direct coupling drive avoids wear of the drive as this is the case with belt driven fans.

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• Direct Driven DIDW fans with Coupling
• Maintenance and wear free drive (No V-Belts)
• Higher Efficiency, lowering running cost in comparison to Belt Driven & Direct Driven SISW (Plenum) fans.

Download Product Catalogue

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Double width, double inlet (DWDI), direct drive. Lap-jointed scroll made of galvanized steel (EN 10142), assembled through a standing seam. V-shaped cut-off at fan discharge. Centrifugal impeller with 11 backward inclined blades welded made of aluminium, directly mounted on a brushless, permanent magnets, DC- external rotor motor, no transmission losses, dynamically balanced according to DIN ISO 21940-11. High efficient 2 kW single-phase driver sensor-less algorithm with integrated active PFC and thermal derating protection. Driver is directly mounted on scroll, plug and play solution, no need further configuration. Continuous speed variation control Drive System by signal 0 … 10 V or with Modbus RS485 compliant interface. All the drive system is completely in protection class IP 44. Power source 230V – 50/60 Hz. Maintenance free! Air performance ratings according to AMCA 210-07 (Fig. 12) and ISO 5801 (Fig. 69 c and par. 30.2 f).

Sizes: 315 – 500

Max. motor power: 2 kW

Download RDP Operating Mannual

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Double Skin-CDK-FIL Series

• Designed for Ventilation applications such as bathrooms, storage rooms, meeting rooms, or offices.
• Double Skin- 0.6mm inner GSS and 0.6mm outer pre coated GSS, 25mm thick panel, PUF density 40kg/m^3
• DDMP-Compact Forward Curved Fan with Single phase DC Brushless motor.
• Complete with Inlet and outlet flange as standard for duct connection. Combination of Hepa Filter & Pre- Filter fixing arrangement is a standard feature in all models.
• Motor and controller are available in 1KW & 2 KW as an option in DDMP-9/9 & 10/10 models.
• Initial pressure drops -35mm

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