DZR 25 / 2 B, axial tube fan DZR 25 / 2 B DN250, current

Axial pipe fan DZR 25 / 2 B DN250, current

Rotary current version: Axial pipe fan, in rotary current version. Short description: Tube case made of galvanized steel sheet, both sides with flange. 8-leaf wing wheels made of glass fibre-reinforced polyamide. Flange drilling according to DIN EN 12220: 1998. DZR 56 / 6 B and DZR 56 / 4 B: flange drilling according to DIN EN 12220: 1998. To avoid vibration transfer to the pipe system: use elastic connection pins, feet and vibration absorbers. Thermal overload protection as standard. Ventilators meet the requirements of European ecodesign Regulation (EC) No 327 / 2011 Directive 2009 / 125 / EC. Vibration-free run by dynamically weighted wing wheel and engine (wave rotor), according to quality level 6.3, DIN ISO 1940, part 1. High ventilation-side efficiency, low operating noise. Increased durability through high-quality materials such as low-noise ball bearings. Fans are maintenance-free. Installation possible in any location. Support direction: The support direction is marked. Standard exhaust air operation, direction of transport via engine suction. Rotary current motor: type series DZR. Asynchronous motor. Not suitable for the production of steam-saturated air. Rating voltage 400 V, 50 Hz. High protection type IP 55. Derogation DZR... D IP 54. Speed controllable. The exception for type DZR 40 / 2 B devices can be switched with an optional 5-step transformer. Reversible. Reverse operation: The volume flow rate is reduced by about 35% with an abnormal direction of transport. Thermal overload protection as standard. Exemptions for type DZR 25 / 4 D and polo-switchable axial tube fans available on request. The connections are free of potential to clamps and must be connected to a motor full-length protection switch e.g. MV 25-1 or the control circuit of a protection. Polo-switchable fans: ensure overload protection with the fully-designed engine protection switch. Electric connection: external terminal box with cable cases. Safety instructions: The fan may only be put into operation if the contact protection of the wheel is guaranteed in accordance with DIN EN ISO 13857, e.g. with Maico protection grid SG.Article: DZR 25 / 2 B, conveyor volume: 2190 m3 / h, conveyor volume: 1580 m3 / h / in the opt. Efficiency, pressure pps, name: 137 Pa - in opt. Efficiency, speed called: 2280 1 / min - in opt. Efficiency, speed: 2913 1 / min, wheel type: axial, speed controllable: yes, reversibility: yes, voltage: current of rotation, measurement voltage: 400 V, power frequency: 50 Hz, nominal power: 175 W / in opt. Efficiency, INenn: 0.35 A / in opt. Efficiency, IMax: 0,4 A, protection type: IP 55, heat class: B, poly switchable: no, power supply: 7 / 1,5 mm2, installation position: horizontal / vertical, material: steel plate, galvanized, colour: silver, weight: 8,26 kg, weight with packaging: 9,1 kg, nominal size: 250 mm, width: 304 mm, height: 372 mm, depth: 300 mm, width: 420 mm, height: 330 mm, size with packaging: 330 mm, maximum production temperature: 1 / kg