CRHB/2-250

radial fan

Price

Excl. Tax: €658 Incl. Tax: €796

out of sortiment

The CRHB/2-250 roof fan is designed for horizontal exhaust. The CRHB fan is designed for mounting on flat roof structures and for general ventilation applications. The housing and weather protection hood of the CRHB roof fan are made of aluminium sheet.

Speed [min-1]	2450
Air Flow Volume [m3/h]	1380
Current [A]	0.63
Input Power [W]	140
Voltage	230V
Max. temperature [°C]	70
Protection IP	IP54
Noise [dB(A)]	58

Description

Housing	The fan housing and the weather protection hood are made of aluminium sheet. The base is made of galvanized sheet steel. The holders, screws and grille are galvanized. The housing is equipped with a grille against the ingress of unwanted objects into the impeller.
Impeller	The fan radial impeller with backward curved blades is made of aluminium sheet and is statically and dynamically balanced.
Motor	Asynchronous squirrel-cage motor with external rotor. The motor is equipped with a thermal fuse and greased-for-life ball bearings. Insulation class F, ingress protection IP54.
Speed control	Speed control is performed by electronic or transformer controllers by changing the voltage.
Direction of rotation	The direction of rotation is indicated by an arrow on the housing. If the direction of rotation is reversed, the motor may be overloaded and an increased noise may emerge.
Terminal block	The terminal block is located on the fan base and contains a start capacitor. Ingress protection IP55.
Noise level	The noise emitted by the fan is given in the tables.
Installation	The fan can only be mounted on the mounting base with the motor axis vertically.

Additional Information