Three-phase version: Axial wall fan with steel wall ring, in three-phase version. Brief description: Protective grille on the suction side, contact protection in accordance with DIN EN ISO 13857. 8-blade impellers made of glass fiber reinforced polyamide. Thermal overload protection as standard. Fans meet the requirements of the European Ecodesign Regulation (EC) No. 327/2011 Directive 2009/125/EC. Vibration-free operation thanks to dynamically balanced impeller and motor (shaft-rotor), in accordance with quality level 6.3, DIN ISO 1940, Part 1. High ventilation-side efficiency, low operating noise. Increased longevity thanks to high-quality materials such as low-noise ball bearings. Fans are maintenance-free. Reversible operation of the fans possible. Customer-specific special voltages available as special versions on request and for an additional charge. Installation for ventilation and exhaust ventilation possible in any position. Air flow direction: The air flow direction is marked. Standard exhaust air operation, conveying direction via motor suction. Three-phase motor: Asynchronous motor. Not suitable for conveying air saturated with water vapor. Rated voltage 400 V, 50 Hz. Protection class IP 55. Exception for type DZQ ... D IP 54. Speed controllable. Exception for type DZQ 40/2 B and DZS 40/2 B. Devices can be switched in stages using an optional 5-stage transformer. Reversible. Reversing operation: The volume flow is reduced by approx. 35% if the conveying direction is abnormal. Thermal overload protection as standard. Exception for type DZQ/DZS 25/4 D and pole-changing axial wall fans available on request. The connections are potential-free on terminals and must be connected to a motor protection switch, e.g. MV 25, or the control circuit of a contactor. Pole-changing fans: Ensure overload protection with a motor protection switch to be provided by the customer. Pole-changing motors with speed ratios 8/4 or 4/2 are switched according to the Dahlander principle. Electrical connection: On the terminal block in the end cover of the motor. Safety instructions: The fan may only be operated if the contact protection of the impeller is guaranteed in accordance with DIN EN ISO 13857, e.g. with a Maico protective grille SG. Article: DZS 50/6 B, design: steel wall ring, delivery volume: 5880 m3/h, delivery volumeNominal: 4350 m3/h / in opt. efficiency, pressure pfs, nominal: 60 Pa - in opt. efficiency, speed nNominal: 950 1/min - in opt. Efficiency, speed: 968 1/min, impeller type: axial, speed controllable: yes, reversibility: yes, voltage type: three-phase current, rated voltage: 400 V, mains frequency: 50 Hz, rated power: 240 W / in opt. efficiency, INom: 0.7 A / in opt. efficiency, IMax: 0.8 A, protection class: IP 55, thermal class: F, mains cable: 7 / 1.5 mm2, installation location: wall / ceiling, installation type: surface-mounted, installation position: horizontal / vertical, material: sheet steel, galvanized, color: silver, weight: 13.984 kg, weight with packaging: 17.516 kg, nominal width: 500 mm,Width: 700 mm, Height: 700 mm, Depth: 330 mm, Width with packaging: 730 mm, Height with packaging: 730 mm, Depth with packaging: 400 mm, Conveyor temperature at rated current: 60 °C, Conveyor temperature at IMax: -20 °C to 60 °C, Overall efficiency e: 30.2%, Measurement category: A, Efficiency category: static, Efficiency grade N: 40.4, VSD required: no, Year of manufacture: see type plate, Manufacturer name / Official registration number / Manufacturer's place of business: Maico Elektroapparate-Fabrik GmbH / Register court Freiburg, HRB 601233 / Villingen-Schwenningen, PBEP / Discharge volumeBEP / Pfs, BEP: 0.24 kW / 4350 m3/h / 60 Pa, nBEP: 950 1/min, Specific ratio: approx. 1, Information on Dismantling and disposal: see assembly instructions, Information on installation, operation and maintenance: see assembly instructions, Items used in the efficiency measurement that are not described by the measurement category: -, Sound power level LWA7: 73 dB(A), Cover flap: without