STJH-LOW-VOLTAGE-DC-FFU-250X256-24V

Fan Filter Unit 250 × 256 mm 24 VDC Low-Voltage

A compact two-speed HEPA module for adding filtered air to small instrument covers with a 24 VDC supply.

Compact two-speed HEPA module
24 VDC supply
Shallow enclosure

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Introducción del producto

This low-voltage unit combines a brushless fan with a filter integrated into the lower casing. Its shallow enclosure suits an individual inspection station or a small enclosed handling point where a full ceiling module would be difficult to accommodate. The 250 x 256 mm name identifies the nominal footprint; the casing depth is 255.5 mm.

Características clave

Two airflow positions

Two airflow positions provide a straightforward choice between active handling and reduced airflow.

Antistatic ABS shell

An antistatic ABS shell offers a lightweight alternative to a fabricated metal housing.

Discharge-side operating indicator

A discharge-side operating indicator allows the running state to be seen from the clean side.

Parámetros técnicos

Casing Dimensions	250 W x 255.5 D x 130 H mm
Power Supply	24 VDC
Motor Type	Brushless DC motor
Airflow Settings	Two steps: approximately 1.0 / 0.5 m³/min
Nominal Discharge Velocity	Approximately 0.48 / 0.24 m/s, corresponding to the two airflow settings
Power Consumption	Approximately 13 / 6 W at the respective settings
Main Filter	HEPA; nominal particle collection efficiency at least 99.99% at 0.3 µm
Prefilter	Removable polymer mesh
Casing Material	Antistatic ABS resin
Customization	Mounting and supply connection can be tailored to the intended instrument enclosure and operating environment.

Applications

Localized air supply above optical component inspection. Small covers around clean parts awaiting assembly.

Solutions for Your Application

A small machine cover has little space for a fan and a separate filter box.Use the combined module over the handling point and keep an unobstructed inlet outside the cover.

An oversized air unit may disturb lightweight components.Start with the lower airflow position and assess the working-zone air movement before selecting the higher setting.

Opciones disponibles

A dedicated cable for connection to a 24 VDC source. A ULPA filter configuration for applications requiring finer particle capture.

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