Centrifugal Single Inlet Fans
CMB / CMT Series
All models incorporate forward curved centrifugal impellers manufactured from galvanised sheet steel.
Available, depending upon the model, with single or three phase motors in 2, 4 or 6 poles.
All motors are IP55, Class F (1) with ball bearings greased for life.
-Single phase 230V-50Hz.
-Three phase 230/400V-50Hz up to 3kW.
-Three phase 400V-50Hz, for higher power motors.
Series 1 are equipped with B14 flange mounted motor.
Series 2 & 3 are equipped with B3 foot mounted motor.
(1) Series 1: Some motors are IP44, Class B
The scroll can be orientated in 8 different positions as per the table below.
Standard supplied position: LG 270.
On request, explosion proof versions in accordance with ATEX Directive, for 3 phase models.
For ambient working temperatures from -20ºC to +40ºC.
- ATEX Flameproof - Gas:
In standard ATEX version flameproof motors are without thermal protection.
If used with frequency inverter, flameproof motors with a PTC-type thermal protection must be specified at order.
II 2G Exd IIB T4
II 2G Exd IIB+H2 T4 (with Ex d IIC T4 motor)
- ATEX Increased safety - Gas:
II 2G Ex e II T3
- ATEX - Dust:
In standard ATEX version, ATEX motors for dust are without thermal protection.
If used with frequency inverter, ATEX motors for dust with a PTC-type thermal protection must be specified at order.
Suspended flammable particles and non-conductive dust:
II 3D Ex tc IIIB T125ºC
II 3D Ex tc IIIC T125ºC (with IP65 motor)
To select CMT ATEX refer to performance curves, or Easyvent.
Note electrical data may vary for ATEX motors.
For single phase models, please consult S&P.
Impeller dynamically balanced
Forward curved centrifugal impellers dynamically balanced, according to ISO 1940 standard, providing vibration free operation.
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