CRFAX 355 T4 0,55KW Zone 2: FAN (Ex h IIB T3 Gc) + MOTOR (Ex ec IIC T3 Gc)

ATEX ROOF FAN WITH ALUMINUM COWL

MANUFACTURING FEATURES
• Roof cowl made of aluminium
• Structure, roof base support and bird protection guard made of galvanised steel.
• High efficiency backward impeller with self-cleaning system of steel.
• ATEX asynchronous squirrel-cage motor with IP-55 protection and class F insulation. Manufactured with standard voltages: 230/400V 50Hz in three phase motors up to 4kW and 400/690V 50Hz for higher powers.
• ATEX certified: Motor Ex-d: II 3G EX-d IIC T4
Motor Ex-e: II 3G Ex-e IIC T4
Motor Ex-nA: II 3G/D Ex-nA IIC T3

APPLICATIONS
Ventilation in indoor environments classified as ATEX. Specially designed for roof installation, they are suitable for:
• Smoke extraction.
• Smoke emergency exhaust with motor outside the hazardous area.
• Air renewal in buildings and industries.
• Industrial and professional kitchen hoods.
• Maximum continuous operation temperature: 110ºC (fluide).
• Maximum ambient temperature: 50ºC

UNDER REQUEST

• 60Hz and special voltages.
• Atex classification for other areas

Fan

Max flow

3590 m³/h

Weight

19 Kg

Motor

Power

0,55 kW

RPM Motor

1430

I max. 400 V

1,75

Size

Weight

8 Kg

Efficiency

58 %

0.71

CRFAX 355 T4 0,55KW Zone 2: FAN (Ex h IIB T3 Gc) + MOTOR (Ex ec IIC T3 Gc)

Design point

Service point

Degrees

RPM

Temp. max. (ºC)

Q (m³/h)

Ps (Pa)

Pd (Pa)

Pt (Pa)

Speed air (m/s)

Security coefficient

Mechanical total efficiency (%)

Total efficiency (%)

Pw_mec

Pw_mec (kW)

Pw_abs (kW) 1.2 Kg/m³

Pw_recom (kW)

Alternative point

CRFAX 355 T4 0,55KW Zone 2: FAN (Ex h IIB T3 Gc) + MOTOR (Ex ec IIC T3 Gc)

A	B aprox	C	D	E	F	G	H	I	K aprox
664,6	644,6	665	520	9	253	210,8	40	30,75	363,25

CRFAX 355 T4 0,55KW Zone 2: FAN (Ex h IIB T3 Gc) + MOTOR (Ex ec IIC T3 Gc)

CRFAX 355 T4 0,55KW

Model

INT 25 3P A

Information

SAFETY SWITCH

MANUFACTURING FEATURES

• Safety start-stop switches according to IEC 60947-1 and IEC 60947-3.
• IP65 and always equipped an auxiliary contact.
• Useful for switching off the current before handling the fan.

*Máx. thermal current air (A)

Model

SFC 400 III 2,2A *

Information

FREQUENCY SPEED CONTROLLER

MANUFACTURING FEATURES

• Specially designed for speed frequency control in ventilation applications.
• Ultra compact, simple operation and wide range of functions.

*Dial panel incorporated. Optional EMC filter.

Certifications: CE/UL/CSA/EN/GOST/CCC.

Protection index IP20.

The selection of SFC frequency drive speed controller must be made based on the maximum intensity absorbed by the fan to be regulated. The powers (kW) and the intensity for constant load refer to the normal duty (150% overload for 60 seconds). The intensity for quadratic load admits an overload of 110% during 60s.

SFC 230: Entrance 230V I, exit 230V III
SFC 400: Entrance 400V III, exit 400V III

EMC filter incorporated for models from 47A (included)

*Lineal load rated current

**Quadratic load rated current