Protective grille on the suction side, yellow chromated, contact protection in accordance with DIN EN ISO 13857. 8-blade impellers made of glass fiber reinforced polyamide. Dynamically balanced in 2 levels, in accordance with quality level 6.3, DIN ISO 1940, Part 1. Installation in any position possible. Direction of conveyance: The following illustration shows the direction of conveyance: Direction of conveyance A: Suction via the motor, standard. Direction of conveyance B: Blowing via the motor, on request. Direction of rotation, reversing operation: The volume flow is reduced by approx. 35% in abnormal direction of conveyance. Motor: Asynchronous motor. Speed controllable. Exception: Type EZQ 45/6 B, EZS 45/6 B, DZQ 40/2 B and DZS 40/2 B. Reversible. Exception: Fans with shaded pole motor (...-E). Not suitable for conveying air saturated with water vapor. Three-phase motor: DZQ and DZS series. Rated voltage 400 V, 50 Hz. Protection class IP 55. Exception DZQ/DZS... D IP 54. Thermal overload protection as standard. Exception: Available on request for DZQ/DZS 25/4 D and pole-changing axial wall fans. 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 connected using the Dahlander principle. Electrical connection: On terminal block in the end cover of the motor. Safety instructions: The fan may only be put into operation if the impeller is protected against contact in accordance with DIN EN ISO 13857. Article: DZQ 45/4 B, Design: Square wall plate, Delivery volume: 6580 m3/h, Delivery volumeNominal: 4480 m3/h / in opt. Efficiency, Pressure pfs, Nominal: 125 Pa - in opt. Efficiency, Speed nNominal: 1390 1/min - in opt. Efficiency, Speed: 1427 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: 440 W / in opt. Efficiency, INom: 0.8 A / in opt. Efficiency, IMax: 1.1 A, Protection class: IP 55, Thermal class: B, Mains supply cable: 7 / 1.5 mm2, Installation location: wall / ceiling, Installation type: surface-mounted, Installation position: horizontal / vertical, Material: galvanized sheet steel, Weight: 15.7 kg, Nominal width: 450 mm, Width: 630 mm, Height: 630 mm, Depth: 299 mm, A: 474 mm, B: 461 mm, Conveyor temperature at nominal current: 60 °C, Conveyor temperature at IMax: -20 °C to 60 °C, Overall efficiency e: 35.4%, Measurement category: A, Efficiency category: static, Efficiency grade N: 43.9, 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 / delivery volumeBEP / Pfs, BEP: 0.44 kW / 4480 m3/h / 125 Pa, nBEP: 1390 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 levelLWA7: 81 dB(A), closure flap: without
| Property | Value |
| Design: | Ventilation |
| Speed: | 1427 1/min |
| Volume flow: | 6580 m³/h |
| Nominal diameter: | 450 mm |
| Mains frequency: | 50 Hz |
| Rated voltage: | 400 V |
| Protection class (IP): | IP55 |
| Closing flap: | without |








