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Transcript
Axial wall fan DZS 20/2 B Features Yellow chromated protective grille on the intake side, potection against accidental contact in accordance with DIN EN ISO 13857. 8-blade impellers made of glass-fibre filled polyamide. Dynamically balanced at two levels, in accordance with performance level 6.3, DIN ISO 1940, Part 1. Can be fitted in any position. Air flow direction The following illustration shows the air flow direction: 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 motors (...-E). Not suitable for ventilating steam-saturated air. Three-phase AC motor DZQ and DZS model series. Rated voltage 400 V, 50 Hz. IP 55 degree of protection. Exception DZQ/DZS... D IP 54. Thermal overload protection as a standard feature. Exception: available on request for DZQ/DZS 25/4 D and pole-changeable axial duct fans. Potential-free terminal connections, which must be connected to e.g. an MV 25 protective motor switch or the control circuit of a contactor. Pole-changeable fans: Ensure overload protection is guaranteed by a motor protection switch provided by the customer. Pole-changeable motors with speed ratios of 8/4 or 4/2 have a Dahlander pole-changing circuit. Electrical connection To terminal block under the motor cover. Safety instructions The fan can be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordance with DIN EN 13857 for fans with a free inlet. Special versions The following special versions are available at extra cost on request: Special voltages and frequencies.Single-phase motors with thermal contacts or PTC thermistor, with potential-free terminal connections.Condensation drainage holes.Fans with enhanced anti-corrosion protection.Impellers made of aluminium. Information on operation at temperatures occasionally below -20°C available upon request. If operating with frequency converters, the factory must be consulted. Feasibility must be checked in each case. Technical data Article: DZS 20/2 B Model: Steel wall ring Air flow volume: 1.150 m³/h Rotating speed: 2.850 1/min Impeller type: axial Speed controllable: ✔ Reversing capacity: ✔ Type of voltage: Three-phase AC Rated voltage: 400 V Frequency: 50 Hz Nominal output: 65 W Inom: 0,17 A Imax: 0,24 A Degree of protection: Insulation class: Mains cable: Installation site: IP 55 B 7 / 1,5 mm² Wall / Ceiling Type of installation: Surface-mounted Installation position: horizontal / vertical Material: Weight: Nominal size: Airstream temperature at nominal current: Airstream temperature at IMax: Packing unit: Range: EAN: Article number: Manufacturer: MAICO Sheet steel, galvanised 4,8 kg 200 mm 60 °C -20 °C up to 60 °C 1 piece C 4012799940128 0094.0012 DZS 20/2 B Axial wall fan