Centrifugal Fans Brochure - Flextraction.co.uk

ACCESSORIES
Model RFM-0.5 RFM-1 RFM-2 RFM-3
Motor (CV) 0.5 1 2 3
(kW) 0.37 0.75 1.5 2.2
Current (A) 2.5 5 8 12
kVA 0.95 1.9 3 4.5
Input
Single-phase
Voltage (V) 2 x 200 ÷ 230 V (±10%)
Frequency (Hz) 50 – 60 Hz (± 5%)
Output
Three-phase
Model RFM-0.5 RFM-1 RFM-2 RFM-3
Voltage (V) 3 x 200 ÷ 230 V
Frequency (Hz) 0-200 Hz 0-400 Hz 0-400 Hz 0-400 Hz
RFI Filter
Built in
Size Width (W1) mm 68 79 156 156
Height (H1) mm 128 143 143 143
Depth (D1) mm 115 143 143 143
Weight (Kg) 0.95 0.97 1.94 2.00
Method of refrigeration Radiator Forced air Forced air Forced air
1. In general, all SODECA fans with a threephase
motor under normal operating conditions
are suitable for working supplied with a static
frequency converter (in accordance with IEC
60034-17). Nevertheless, some motors require
special measures.
The maximum operating frequency or speed must
never exceed that for which the fan has been
designed. In applications with quadratic torques
such as fans and pumps, when the speed varies
the absorbed power is directly proportional to the
cube of the rotating speed: Pa 2
= Pa 1
(n 2
/ n 1
) 3
2. The insulation of motors coupled to fans is
sufficient to work without restrictions with a
frequency converter up to voltages of < 500 V.
The use of sinusoidal filters at the converter
output will help the motor to operate properly,
reducing breakdowns and increasing the fan’s
service life.
It is recommended that, for motors of sizes > 225,
they be ordered with special windings to work
with a frequency converter.
3. The length of the wires running from the
converter to the fan have a particular influence
on voltage characteristics at the motor terminals.
The definition of "long wires" will depend on
the nominal value and the converter type. The
manufacturer’s technical documentation must be
consulted.
4. EEx-d flame-resistant motors must be ordered
for operation using a frequency converter. The
motor manufacturer will request information about
the application via a questionnaire in order to
establish the working parameters. These motors
must also be fitted with PTC probes.
5. EEx-e increased safety motors cannot be
operated with a frequency converter (a joint
motor-converter certification would be required
for this).
KME - 10K
Features:
• On/Off by button
• Display by means of LED of the position of On or Off
• Memory of the latest position for speed regulation
External control kit for On/Off and velocity control for RFM and RFT
frequency converters
• Possibility of installation on the surface or built-in
GMP
Electrical starter panel and protection of fans with three-phase motor, with On/Off buttons
Features:
• On/Off by button
• Incorporates fully-cabled contactor and adjustable thermal relay for protection of the motor
• The Off button is used to reset the thermal relay, in case it should go off due to overload
• For assembly on the surface, IP-55 protection
For fan with three-phase motor 230V
Model
Current
of regulation (A)
Power motor
3x230V (kW)
GMP-0.2-0.33/230 1.2-1.8 0.25
GMP-02-0.75/230 1.8-2.8 0.37 / 0.55
GMP-02-1/230 2.8-4 0.75
GMP-02-1.5/230 4-6.3 1.10
GMP-02-2/230 5.6-8 1.50
GMP-04-3/230 7-10 2.20
GMP-04-4/230 8-12.5 3.00
GMP-04-5.5/230 11-17 4.00
GMP-04-7.5/230 15-23 5.50
GMP-04-10/230 22-32 7.50
GMP-06-12.5/230 25-40 9.20
GMP-06-15/230 25-40 11.00
For fan with three-phase motor 400V
Model
Current
of regulation (A)
Power motor
3x400V (kW)
GMP-0,2-0,33/400 0,56-0,8 0,25
GMP-02-0,5/400 0,8-1,2 0,37
GMP-02-0,75/400 1,2-1,8 0,55
GMP-02-1,5/400 1,8-2,8 1,10
GMP-02-2/400 2,8-4 1,50
GMP-02-3/400 4-3 2,20
GMP-02-4/400 5,6-8 3,00
GMP-04-5,5/400 7-10 4,00
GMP-04-7,5/400 8-12,5 5,50
GMP-04-10/400 11-17 7,50
GMP-06-12,5/400 15-23 9,20
GMP-06-15/400 15-23 11,00
GMP-06-20/400 22-32 15,00
GMP-06-25/400 25-40 18,50
200