CTH3-A 450 T4 1,1KW ATEX Zone 2: FAN (Ex h IIB T3 Gc) + MOTOR (Ex ec IIC T3 Gc)

ROOF FAN, AL COWL ATEX

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 standard asynchronous motor. ATEX certified according to the zone. IP55 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.

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.
• Working temperature: ambient from -20ºC to 40ºC, transported air according to the ATEX clasification.

UNDER REQUEST

• 60Hz and special voltages.

Fan

Max flow

7300 m³/h

Weight

38 Kg

Motor

Power

1,1 kW

RPM Motor

1420

I max. 400 V

3,3

Size

90L

Weight

12 Kg

Efficiency

71 %

0.7

CTH3-A 450 T4 1,1KW ATEX 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

CTH3-A 450 T4 1,1KW ATEX 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
774,6	758,15	665	520	9	253	304,25	40	30,75	383,15

CTH3-A 450 T4 1,1KW ATEX Zone 2: FAN (Ex h IIB T3 Gc) + MOTOR (Ex ec IIC T3 Gc)

CTH3-A 450 T4 1,1KW ATEX

Model

INT 25 3P A

Code

INT253PA

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

KV CTH-3 355-400-450

Code

960004730

Information

CTH3 VERTICAL DISCHARGE

MANUFACTURING FEATURES

• Accessory to convert the CTH3 roof fan to vertical discharge.
• Manufactured in aluminuim

Model

INT 16 ATEX

Code

510200016X

Information

ATEX SWITCH

Switch for ATEX environments. Suitable for zones 1-2 (gas) and 21-22 (dust), index protection IP65. Manufactured in aluminum alloy and RAL 7000 gray finishing coat. External screws in stainless steel. Control on the front. Tensions up to 690V. According to directive 2014/34 / UE (ATEX).

Model

SFC 400 III 3,6A *

Code

SFC400III4

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