STjh 280 mm EC centrifugal supply-air fan unit with a medium wheel and 294 mm support frame on white.

STJH-EC-CENTRIFUGAL-SUPPLY-AIR-FAN-280MM

Centrifugal Cleanroom Supply-Air Fan Unit 280 mm EC

A medium support-bracket fan using a 280 mm impeller, 294 mm-wide frame and IP55 EC motor variants.

280 mm backward-curved wheel
294 mm frame width
IP55 motor protection

مقدمة المنتج

This 280 mm model occupies the middle position in the selected EC supply-fan range. The wider 294 mm frame supports a larger backward-curved wheel, while available EC motor builds span published maximum inputs from 500 to 1050 W for different voltage and duty combinations.

الخصائص الرئيسية

Medium fan-array module

The 280 mm assembly provides a practical cell size for modular cleanroom supply sections.

Protected EC motor

IP55 construction helps protect the drive against dust ingress and water jets within its rated installation conditions.

Selectable motor loading

Different EC builds allow input capacity to be matched to system resistance instead of defaulting to one oversized motor.

المعلمات الفنية

Impeller Diameter	280 mm
Frame Width	294 mm
Maximum Input	500-1050 W depending on build
Degree of Protection	IP55
Impeller Geometry	Backward curved
Motor	Integrated EC external-rotor type
Control Signal	Demand-based EC speed input
Discharge	Unhoused plenum discharge
Mounting	Supply-air support bracket
التخصيص	Motor build, voltage, sensors and frame interfaces can be configured for the intended application and operating environment.

Applications

Medium cleanroom air handlers, modular fan walls, recirculation sections and controlled process-air equipment.

Solutions for Your Application

A small fan cell cannot deliver the required airflow at the loaded-filter pressure.Select the 280 mm wheel and the appropriate motor input within the documented build range.

Several parallel fans drift away from the target header pressure.Apply a common pressure-control signal and commission each EC module for stable parallel operation.

الخيارات المتاحة

200-277 V or 380-480 V builds, pressure transducer, communication module, guard and tailored fan-array frame can be specified.

Planning a Centrifugal Cleanroom Supply-Air Fan Unit 280 mm EC specification?

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