KRD EC 450/70/40

KRD EC 450/70/40

In-line EC rectangular fan, motor swing out 3-PH 400V 50Hz controllable

Ref.-No. 08173

Features

Rectangular EC-centrifugal fan with backward curved impeller and swing out motor and impeller unit, for in-line installation in rectangular ducting. Casing made from galvanised steel and flanged on both ends, compact design, service friendly (cleaning) through swing out motor and impeller unit. High-performance centrifugal impeller with backward curved blades made of aluminium. Vibration-free running due to dynamic balancing. Aerodynamically optimised, inflow via nozzle. Operated by an energy-saving, speed-controlled EC external rotor motor with IP44 protection and maximum efficiency. Maintenance-free and radio interference-free, ball bearing mounted. Integrated electronic temperature monitoring for EC motor and electronics. Standard with internal potentiometer for setting any fan speed between min. and max. speed. Stepless speed control with external potentiometer or stepless speed control with universal control system EUR-EC. Connection via standard terminal box (IP54) mounted on extended cable.

Technical Data

General Information
Ref.-No.:08173
Type:KRD EC 450/70/40
Flow rate free-blowing:7520 m³/h
RPM:1920 min-1
Voltage:400 V , 3 W , 50 / 60 ph
Rated current (FLC) uncontrolled:2.81 A
Nominal power:1820 W
Max. air flow temperature:60 °C
EC technology:
IP protection category:44
Insulation class:F
Duct dimension:700/400 mm
Weight:38.2 kg
Wiring diagram no.:1479
Acoustic data
Case breakout 54 dB(A) in 4 m