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Blauberg Motoren
VENTILATION UNITS

VENTILATION UNITS

Product catalog summary

About Blauberg Group
Blauberg Group is a manufacturer of energy-efficient ventilation equipment, including domestic fans, single-room ventilation units, heat recovery units, industrial fans, and air handling units. The company focuses on innovative technology, contemporary design, and traditional German quality. Blauberg Motoren, based in Munich, produces motors and fans with EC and AC technology for global clients.

Fan Motors
The catalogue describes asynchronous electric motors known for their simple design and ease of operation. These motors feature a stator and rotor, with options for short circuit and phased rotor designs. Advantages include consistent speed under various loads, mechanical overload resistance, and easy start-up. They are designed for long service life, light weight, and easy assembly.

Type Key and Electrical Connection Diagram
The type key is a coding system for identifying fan models, detailing impeller series, diameter, number of poles, and motor power. The electrical connection diagram provides the wiring setup for these units.

Ventilation Units - Backward Curved
The catalogue includes technical data for AC centrifugal fans with backward curved impellers, with diameters from 310 mm to 560 mm. Specifications include nominal voltage, frequency, speed, power, current, sound pressure level, and permissible ambient temperature. Features include materials used, direction of rotation, type of protection, insulation class, and motor protection.

Key Features and Specifications
- Materials: Impeller made of welded sheet steel, frame and terminal box made of aluminium.
- Direction of rotation: Clockwise.
- Type of protection: IP55.
- Insulation class: 155(F) to 130(B).
- Mode of operation: S1.
- Motor protection: Standard without additional protection.
Performance curves and technical diagrams are included to assist in selecting the appropriate unit.

Specifications
AC centrifugal fans with backward curved impellers are detailed, featuring welded sheet steel impellers and aluminum frames and terminal boxes. They rotate clockwise, have IP55 protection, insulation class 155(F) to 130(B), and operate in mode S1 with preloaded bearing DE. Standard motor protection is without additional features.

Technical Data
Fans operate at 400 VAC and 50 Hz. Various models have different performance curves, speeds, power ratings, and sound pressure levels. The permissible ambient temperature range is -20 to +40°C, with electrical connection type "D".

Model Performance
- AR71-6DN-2.2: 940-950 RPM, 2.2 kW, 5.2 A, 86 dBA
- AR71-6DN-3: 950-1055 RPM, 3 kW, 7.2 A, 92 dBA
- AR71-6DN-4: 950-1160 RPM, 4 kW, 9.4 A, 93 dBA
- AR71-6DN-5.5: 950-1290 RPM, 5.5 kW, 12.8 A, 99 dBA
- AR71-6DN-7.5: 1455 RPM, 7.5 kW, 15.2 A, 105 dBA
- AR71-4DN-11: 1460-1630 RPM, 11 kW, 21.5 A, 105 dBA
- AR71-4DN-15: 1460-1800 RPM, 15 kW, 28.5 A, 105 dBA
- AR71-4DN-18.5: 1465-1840 RPM, 18.5 kW, 35 A, 112 dBA

Dimensions and Weight
Dimensions and weights for each model are provided, with lengths (L, L1, L2, L3) and weights ranging from 116.8 kg to 248.2 kg.

Additional Information
Technical changes are reserved, and illustrations and texts are non-binding. Contact information for Blauberg Group is provided for further inquiries.

Catalog excerpts

VENTILATION UNITS CATALOGUE 2021

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About Blauberg Group Electrical Connection Diagram Ventilation Units Backward Curved

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Blauberg Group manufactures and sells a complete range of hi-tech energy-efficient ventilation equipment offering a balanced mix of innovative technology, contemporary design and traditional German quality. The group’s main products include domestic fans, single-room ventilation units, heat recovery units, industrial fans and air handling units, parts and accessories for customized system configurations as well as bespoke ventilation solutions. Due to our product diversity, we do our best to meet the ndividual needs of our clients in various countries with i the best combination of price and...

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Blauberg Motoren was born in Munich, Germany, like own direction of fans and motors manufacturing and integral part of Blauberg Group. Starting with manufacturing AC motors with external rotors for own needs, for now Blauberg Motoren produce wide range of motors and fans with EC and AC technology for clients all around the world. It includes axial fans, backward curved fans, forward curved fans, blowers. We are proud to be presented in products of our clients — world famous manufactures of ventilation, heat, home appliance and other equipment, and be part of their success. For now Blauberg Motoren...

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FAN MOTORS THE MOTORS ARE POWERED BY DIRECT OR ALTERNATING CURRENT. A direct current motor is powered by a direct power supply. An alternating current motor is powered by an alternating power supply. Alternating current motors are the most widely used motors because the basic electric grid in the country has alternating power supply. ALTERNATING CURRENT MOTORS HAVE TWO TYPES: Synchronous electric motors are alternating current motors with a rotor that rotates synchronously with a magnetic field; Asynchronous electric motors are alternating current motors with the magnetic field frequency exceeding...

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TYPE KEY AC centrifugal fans AR31-2DN-1.1 A – ventilation unit R – type of impeller series KRR (steel) 31 – Impeller diameter 310 mm 2 – Number of poles (2/4/6/8) D – 400 V 50 Hz (Three–phase motor) N – Standard motor IEC standard 1.1 – motor power (kW) ELECTRICAL CONNECTION DIAGRAM Type D T1 T2 T3

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AC CENTRIFUGAL FAN Features Materials: Impeller – welded sheet steel Frame – aluminium Terminal box – aluminium Direction of rotation: clockwise Type of protection: IP55 Insulation class: 155(F) to 130(B) Mode of operation: S1 Bearing: preloaded bearing DE Motor protection: (A) without (Standard) Technical data Frequency [Hz] Performance Nominal voltage curve [VAC] Sound pressure level [dBA] Electrical connection

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AC CENTRIFUGAL FAN Features Materials: Impeller – welded sheet steel Frame – aluminium Terminal box – aluminium Direction of rotation: clockwise Type of protection: IP55 Insulation class: 155(F) to 130(B) Mode of operation: S1 Bearing: preloaded bearing DE Motor protection: (A) without (Standard) Technical data Performance Nominal voltage curve [VAC] Sound pressure level [dBA] Electrical connection

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AC CENTRIFUGAL FAN Features Materials: Impeller – welded sheet steel Frame – aluminium Terminal box – aluminium Direction of rotation: clockwise Type of protection: IP55 Insulation class: 155(F) to 130(B) Mode of operation: S1 Bearing: preloaded bearing DE Motor protection: (A) without (Standard) Technical data Performance Nominal voltage curve [VAC] Sound pressure level [dBA] Electrical connection

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AC CENTRIFUGAL FAN Features Materials: Impeller – welded sheet steel Frame – aluminium Terminal box – aluminium Direction of rotation: clockwise Type of protection: IP55 Insulation class: 155(F) to 130(B) Mode of operation: S1 Bearing: preloaded bearing DE Motor protection: (A) without (Standard) Technical data Performance Nominal voltage curve [VAC] Sound pressure level [dBA] Electrical connection VENTILATION UNIT

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AC CENTRIFUGAL FAN Features Materials: Impeller – welded sheet steel Frame – aluminium Terminal box – aluminium Direction of rotation: clockwise Type of protection: IP55 Insulation class: 155(F) to 130(B) Mode of operation: S1 Bearing: preloaded bearing DE Motor protection: (A) without (Standard) Technical data Performance Nominal voltage curve [VAC] Sound pressure level [dBA] Electrical connection

Open the catalog to page 12

AC CENTRIFUGAL FAN Features Materials: Impeller – welded sheet steel Frame – aluminium Terminal box – aluminium Direction of rotation: clockwise Type of protection: IP55 Insulation class: 155(F) to 130(B) Mode of operation: S1 Bearing: preloaded bearing DE Motor protection: (A) without (Standard) Technical data Performance Nominal voltage curve [VAC] Sound pressure level [dBA] Electrical connection VENTILATION UNITS

Open the catalog to page 13

AC CENTRIFUGAL FAN Features Materials: Impeller – welded sheet steel Frame – aluminium Terminal box – aluminium Direction of rotation: clockwise Type of protection: IP55 Insulation class: 155(F) to 130(B) Mode of operation: S1 Bearing: preloaded bearing DE Motor protection: (A) without (Standard) Technical data Performance Nominal voltage curve [VAC] Sound pressure level [dBA] Electrical connection

Open the catalog to page 14

AC CENTRIFUGAL FAN Features Materials: Impeller – welded sheet steel Frame – aluminium Terminal box – aluminium Direction of rotation: clockwise Type of protection: IP55 Insulation class: 155(F) to 130(B) Mode of operation: S1 Bearing: preloaded bearing DE Motor protection: (A) without (Standard) Technical data Performance Nominal voltage curve [VAC] Sound pressure level [dBA] Electrical connection

Open the catalog to page 15

Technical changes reserved. Illustrations and texts are non-binding. 03/2021

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VENTILATION UNITS

VENTILATION UNITS

Catalog excerpts

All Blauberg Motoren catalogs and technical brochures