HRFW EC 355 B
HRFW EC 355 B
Highly efficient axial fan 1-ph. 200-277V 50/60 Hz controllable
Ref.-No. 04921
Features
EC-axial high performance fan Cylindrical casing from galvanised sheet steel, with flanges on both ends. Dimensions and flange holes to DIN 24155, Pt.2. Standard terminal box (IP 55) fitted externally on the casing. Highly efficient, profiled blade impeller from polymers, aerodynamically optimised to the application, dynamically balanced. Suitable for -30 °C to +60 °C. Energy-saving, speed-controllable EC external rotor motor in protection class IP 54 with highest efficiency. Maintenance-free and interference-free, excellent electromagnetic compatibility (EMC), ball bearing. Integrated electronic temperature monitoring for EC motor and electronics. As standard with an internal potentiometer for setting the control voltage and thus any fan speed between min. and max. speed. Continuously variable control via external speed potentiometer. Control via three-step switch or continuously variable via universal control system or electronic differential pressure/temperature controller possible.Additional data and accessories
Technical Data
General Information
Ref.-No.: | 04921 |
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Type: | HRFW EC 355 B |
Flow rate free-blowing: | 4200 m³/h |
RPM: | 1980 min-1 |
Voltage: | 230 V , 1 W , 50 / 60 ph |
Rated current (FLC) uncontrolled: | 1.4 A |
Nominal power: | 316 W |
Max. air flow temperature: | 40 °C |
EC technology: | |
IP protection category: | 54 |
PRODUCT_DETAILPAGE_wheel_diameter: | 355 |
Weight: | 12 kg |
Wiring diagram no.: | 1047 |
Acoustic data
Case breakout | 59 dB(A) in 4 m |
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