Pipe sleeve made of galvanized sheet steel, with flange on both sides. 8-blade impellers made of glass fiber reinforced polyamide. Dynamically balanced in 2 planes, in accordance with quality level 6.3, DIN ISO 1940, Part 1. Flange holes in accordance with DIN EN 12220:1998. DZR 56/6 B and DZR 56/4 B: Flange holes in accordance with DIN EN 12220:1998. To avoid vibration transmission to the pipe system: use elastic connecting pieces, feet and vibration dampers. High protection class IP 55. Exception EZR/DZR... D IP 54. Installation possible in any position. Motor: asynchronous motor, speed controllable. Exception: type DZR 40/2 B. Not suitable for conveying air saturated with water vapor. The conveying direction is marked on the device with a direction of rotation and conveying direction arrow. Reversing operation: The volume flow is reduced by approx. 35% if the conveying direction is abnormal. AC motor: EZR series. Rated voltage 230 V, 50 Hz. Capacitor motor with operating capacitor ready for connection in the terminal box. Thermal overload protection as standard. The connections are potential-free on terminals and must be connected to a motor protection switch e.g. MVE 10 (not suitable for EZR 25/4 D, EZR 30/6 B and EZR 35/6 B) or the control circuit of a contactor. Electrical connection: External terminal box with cable grommets. Safety instructions: The fan may only be operated if the contact protection of the impeller is guaranteed in accordance with DIN EN ISO 13857. Article: EZR 25/2 B, conveying volume: 2200 m3/h, nominal conveying volume: 1610 m3/h / in opt. Efficiency, pressure pfs, nominal: 160 Pa - in opt. efficiency, speed nNenn: 2930 1/min - in opt. efficiency, speed: 2961 1/min, impeller type: axial, speed controllable: yes, reversibility: yes, voltage type: alternating current, rated voltage: 230 V, mains frequency: 50 Hz, rated power: 195 W / in opt. efficiency, INenn: 1 A / in opt. Efficiency, IMax: 1.2 A, Protection class: IP 55, Thermal class: F, Pole-changing: no, Installation position: horizontal / vertical, Material: Sheet steel, galvanized, Weight: 9.3 kg, Nominal width: 250 mm, Width: 304 mm, Height: 372 mm, Depth: 300 mm, A: 263 mm, B: 300 mm, Conveyor temperature at rated current: -20 °C to 60 °C, Conveyor temperature at IMax: -20 °C to 60 °C, Overall efficiency e: 47.5%, Measurement category: D, Efficiency category: total, Efficiency grade N: 58.4, 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 / delivery volumeBEP / Pfs, BEP: 0, 191 kW / 1720 m3/h, nBEP: 2930 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: -, pf, BEP: 190 Pa, sound power levelLWA5: 78 dB(A), DC motor: false
| Property | Value |
| Diameter of the housing: | 304 mm |
| Air volume unloaded: | 1720 m³/h |
| Material of the Housing: | stainless steel |
| Protection class (IP): | IP55 |
| Connection voltage: | 230 V |
| DC motor: | no |
| Pole-changing: | no |
| Length: | 300 mm |
