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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.

Voltage Frequency Current Input Power Speed Capacitor Air Flow Noise Temperature  Curve No.  Approvals
Type V Hz A W rpm y F m3/h/CFM dB(A) Min/Max(°C) #  
B4E250-077A-ACC0 220/230 50 0.28 53 1400 2 680/400 61 -30/+60 ① CCC,CE,RoHS
220/230 60 0.28 58 1600 2 800/470 64 -30/+60 ② CCC,CE,RoHS
B4D250-077A-ACC0 380/400 50 0.15 53 1400 / 680/400 61 -30/+60 ① CCC,CE,RoHS
380/400 60 0.16 58 1600 / 800/470 64 -30/+60 ② CCC,CE,RoHS

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