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B250-77 Backward Centrifugal Fan

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250-77-datu1 250-77-erwei1

Impeller material: Plastic PA66 50

Protection Class: IP44

Approvals: CCC CE

Insulation class: F
Characteristic
1.Applicable to high airflow;
2.Applicable to high pressure;
3.Applicable to large system resistance;
4.Applicable to high requirement of noise level applications.
Application
1.Air Purification;
2.Ventilating Units;
3.Heat Pumps, Ground Source Heat Pumps, Air Source Heat Pumps;
4.Roof Fans;
5.Filtering, FFU.

VoltageFrequencyCurrentInput PowerSpeedCapacitorAir FlowNoiseTemperature Curve No. Approvals
TypeVHzAWrpmy Fm3/h/CFMdB(A)Min/Max(°C)# 
B4E250-077A-ACC0220/230500.285314002680/40061-30/+60CCC,CE,RoHS
220/230600.285816002800/47064-30/+60CCC,CE,RoHS
B4D250-077A-ACC0380/400500.15531400/680/40061-30/+60CCC,CE,RoHS
380/400600.16581600/800/47064-30/+60CCC,CE,RoHS

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