Ø 250 MM, BACKWARD CURVED

Product catalog summary

Overview: The document provides technical specifications and details for a 250 mm backward curved EC centrifugal fan, including materials, protection, and operational data.

Features:

Materials: Impeller and inlet ring made of PA6+GF30; housing is painted sheet steel.
Direction of Rotation: Clockwise, viewed from the rotor.
Protection and Insulation: IP55 protection and insulation class B.
Operation Mode: Continuous operation (S1).
Bearing Type: Ball bearings.
Motor Protection: Self-resetting thermal overload protection (TOP) wired internally.

Technical Data:

Model C-B250B-EC-00: Nominal voltage 120 VAC, frequency 60 Hz, speed 1716 RPM, max power input 85 W, max current 1.1 A, sound pressure level 72 dB(A), permissible ambient temperature -25 to +60°C.
Model C-B250B-EC-01: Nominal voltage 120 VAC, frequency 60 Hz, speed 2400 RPM, max power input 173 W, max current 2.2 A, sound pressure level 73 dB(A), permissible ambient temperature -25 to +60°C.

Performance Curves: The document includes performance curves for two models, showing relationships between pressure, airflow, speed, power input, and current.

Dimensions and Weight:

Overall Dimensions: Various dimensions provided for different parts of the fan.
Weight: BC-B250B-EC-00 weighs 1.3 kg, BC-B250B-EC-01 weighs 1.85 kg; with plug fan, GC-B250B-EC-00 weighs 2.37 kg, GC-B250B-EC-01 weighs 2.92 kg.

Catalog excerpts

Features Materials: Housing – sheet steel, painted grey Direction of rotation: clockwise, seen on rotor Type of protection: IP55 Insulation class: B Mode of operation: S1 Bearing: Motor protection: ball bearings self-resetting TOP wired internally Technical data Perform. curve Sound pres. level [dB(A)] Electrical connection Inlet ring

Open the catalog to page 1

Overal Dimmensions Weight [kg] Centrifugal Fan with Plug Fan

Open the catalog to page 2

Ø 250 MM, BACKWARD CURVED

Ø 250 MM, BACKWARD CURVED

Catalog excerpts

All Blauberg Motoren catalogs and technical brochures