HRFW EC 250 A

HRFW EC 250 A

Highly efficient axial fan 1-ph. 200-277V 50/60 Hz controllable

Ref.-No. 04824

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.

Technical Data

General Information
Ref.-No.:04824
Type:HRFW EC 250 A
Flow rate free-blowing:1970 m³/h
RPM:2710 min-1
Voltage:230 V , 1 W , 50 / 60 ph
Rated current (FLC) uncontrolled:1.03 A
Nominal power:125 W
Max. air flow temperature:40 °C
EC technology:
IP protection category:54
PRODUCT_DETAILPAGE_wheel_diameter:250
Weight:6.5 kg
Wiring diagram no.:1252
Acoustic data
Case breakout 58 dB(A) in 4 m