CBPF-E — EC Motor Driven Cabinet Fan

Midi Industrial is a renowned Asian manufacturer of HVAC fans and building ventilation fans for engineering projects - engineered to fuse aerodynamics, motor technology and intelligent control.

Plant rooms sit above meeting rooms and corridor ceilings more often than most buyers expect, so the fan in that box has to stay quiet without giving up airflow. The CBPF-E is that enclosed cabinet fan: an EC motor coupled straight to the impeller, made for silent and purification supply and exhaust in building HVAC. The cabinet wraps the wheel and drive in sound-insulated panels, which keeps cabinet noise off the occupied side of the wall.

Why the EC drive matters
Motor and speed controller come as one unit, so there is no separate external VFD to mount, wire or panel. Control runs through VSP, 4-20mA, PWM and 485, and the fan can follow a thermostat, CO2 reading or BMS signal rather than run at full speed all day. On a supply or exhaust unit that runs long hours, matching airflow to demand is where the electricity saving actually comes from. There are no belts, pulleys or belt guards to inspect on this arrangement either.

Where it goes
Typical fits are supply and exhaust cabinets in office buildings, hotels, hospitals, conference rooms and other occupied spaces where quiet indoor air movement matters. It suits purification air-handling boxes that sit inside a dedicated plant room rather than out in the open hall.

Before you order
Check the available cabinet footprint, the discharge orientation and whether your control system speaks VSP, 4-20mA, PWM or 485 before fixing a size. Send the target airflow and static pressure, and the wheel diameter and motor can be matched to the duty. If filters or coils sit downstream, size the fan to the loaded resistance rather than the clean-filter value.

Impeller Diameter: 250-630mm
Air Volume: 300-20000 m³/h
Pressure: 0-2000 Pa
Motor Power: 170W-7500W
Control: VSP/4-20mA/PWM/485
Insulation Grade: B/F
Working Temp: -25℃-60℃

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