RRK 250
RRK 250
Centrifugal in-line fan, 1-ph. Casing made fromm impact resistant polymers
Ref.-No. 05978
Features
Centrifugal fan specially designed to be installed in-line in circular ducting. Casing made from impact resistant polymers with spigots which fit standard duct sizes. Highly efficient backward curved centrifugal impeller made from polymers. Dynamically balanced to class G 6.3 DIN and ISO 1940 T.1. Totally enclosed, single phase external rotor motor with thermal contacts wired in series with the windings, maintenance free, low-noise sealed for life ball bearings.Additional data and accessories
Technical Data
General Information
Ref.-No.: | 05978 |
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Type: | RRK 250 |
Flow rate free-blowing: | 910 m³/h |
Speed control: | ELECTRIC |
RPM: | 2360 min-1 |
Number of poles: | 2 |
Voltage: | 230 V , 1 ph , 50 Hz |
Rated current (FLC) uncontrolled: | 0.43 / 0.43 A |
Max. air flow temperature (controlled): | 60 °C |
Max. air flow temperature (uncontrolled): | 70 °C |
IP protection category: | 44 |
Insulation class: | B |
Connect diameter: | 250 mm |
Weight: | 3.4 kg |
Wiring diagram no.: | 508 |