Abbildung_BV_GREH_X_520jpg.jpg
CE-konform
CE compliant according to European regulations
Abbildung_BV_GREH_X_520jpg.jpg
CE-konform

BVGREH-X   

(BV)GREH-X 520

Garage jet fan type GREH-X

  • Highly compact construction 
    • Installation height ventilation & F300 ⇨ 250 mm
    • Construction height F400 ⇨ 275 mm
  • Low weight
  • Good thrust / performance ratio
    • Thrust force up to 50 N
  • Nominal size 520 mm
  • Smooth running over the entire speed range
    • Two speed levels
  • Vandal-proof
  • Optionally powder coating according to RAL chart

General information

Application


The (BV)GREH-X 520 is predominantly used in underground car parks. Thanks to its extremely compact dimensions, the (BV)GREH-X 520 is particularly suitable for low ceiling heights or narrow passages. Compared to similar products from other manufacturers, the (BV)GREH-X 520 has an identical thrust with less power. The good thrust/power ratio is achieved by an asymmetrical design and optimised blade geometry. As a result, a very high running smoothness can be achieved over the entire speed range. With the (BV)GREH-X 520, underground car park ventilation and smoke extraction systems can now be fully equipped with TROX X-FANS components.

Special characteristics

  • Unidirectional air direction, with direct drive
  • Compact casing design for low ceiling heights
  • Good thrust / performance ratio
  • Vandal-proof (internal cabling)


Nominal sizes

  • 520

Variants


  • Ventilation variant: GREH-X 520
  • Smoke extraction variants: BVGREH-X 520 F300, BVGREH-X-520 F400

Construction
  • For ventilation
  • For ventilation and smoke extraction

Parts and characteristics

  • Fan casing in galvanised sheet steel design (optionally with powder coating according to RAL chart)
  • High-performance centrifugal impeller made of galvanised sheet steel, mounted directly on the motor shaft end
  • The motor arranged in the flow is mounted on the casing with a terminal box or repair switch
  • Cover grille on the inlet and outlet side

Accessories

  • Optionally with attached temperature-resistant repair switch

Construction features

  • Compact construction
  • Low weight
  • Asymmetrical structure
  • Direct power flow from motor to impeller
  • Internal cabling (vandal-proof)

Material and surfaces

Surface protection:

  • Jet fan made of galvanised sheet steel (optionally with powder coating according to RAL chart)
  • Galvanised steel cover grille

Classification, standards and guidelines

  • Fire gas test F300 and F400 to DIN EN 12101-3

Technical data

Ventilation & F300

  • Thrust: 50 N
  • Weight: 58 kg
  • Current consumption: 2.88 A

F400

  • Thrust: 50 N
  • Weight: 61 kg
  • Current consumption: 3.30 A

Technical information

Function, Technical data, Specification text

  • Function
  • TECHNICAL DATA
  • SPECIFICATION TEXT

The GREH-X is a very compact radial fan for use in car parks. It is therefore very suitable for low ceiling heights or narrow passageways. The GREH-X has a very good thrust/performance ratio thanks to its asymmetrical casing design. Thanks to the pad-mounted motor and direct power flow, the GREH-X can achieve smooth running across the entire speed range. The internal cabling also makes it vandal-proof.

The GREH-X is available in nominal size 520 with a construction height of 250 mm for ventilation and F300, and a height of 275 mm for F400. The thrust is up to 50 N (ventilation & F300) and up to 45 N (F400). The casing is made entirely of galvanised steel (optionally with powder coating according to RAL chart). The high-performance radial impeller is made of galvanised sheet steel and is optionally powder-coated. The airflow direction is unidirectional. A cover grille is installed on the inlet and outlet side.

Technical data:


Technical data:

Speed level 1


Speed level 2



Ventilation & F300

F400

Ventilation & F300

F400

Thrust


Air direction mode:

50 N

45 N

15 N

14 N

Thrust


Reversing mode:

0 N

Design temperature:

20 °C

Density:

1.2 kg/m3

Fan speed:

1410 rpm

715 rpm

Dimensions (L x B x H)

1200 X 950 x 250 mm

1200 X 950 x 275 mm

1200 X 950 x 250 mm

1200 X 950 x 275 mm

Total weight:

58 kg

61 kg

58 kg

61 kg


Three-phase motor: two-speed:


Ventilation & F300

F400

Ventilation & F300

F400

Rated power:

1.1 kW

1.2 kW

0.18 kW

0.3 kW

Motor rated speed:

1500 rpm

750 rpm

Rated current:

2.88 A

3.3 A

1.05 A

1.19 A

Construction style /

protection level:

AL / IP 55

ISO class:

ISO-H

Operating voltage /

frequency:

400 V / 50 Hz

Motor protection:

no

Switch-on type:

direct


Data at a glance:

See also dimensions


GREH-X 520


Units

Ventilation & F300

F400

Total height:

[mm]

250

275

Casing width:

[mm]

852

Thrust:

[N]

50

45

Weight:

(kg)

58

61

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

Specification text


Smoke extraction jet fan type BVGREH-X-520 for conveying smoke gases of temperature class F300 and F400.


With DoP / BVGREH-X-520 F300 and F400, in accordance with EN 12101-3


The BVGREH-X-520 product group offers maximum thrust values in a compact design with very low power consumption and CE certification to DIN EN 12101-3. Suitable for installation inside and outside the fire zone. The jet fan is designed for direct installation under the ceiling. Thanks to its compact design, it is also suitable for use in garages with low ceilings. The internal cabling makes the BVGREH-X vandal-proof.


Air direction unidirectional, with direct drive consisting of: fan casing made of galvanised sheet steel, impeller made of sheet steel, mounted directly on the motor shaft end. The special motor arranged in the smoke gas flow, mounted with temperatureresistant terminal box on the casing. Optionally with attached temperature-resistant repair switch.

Dimensions

  • Dimensions
BVGREH_X_520-4-2png.png
BVGREH_X_520-4-2png.png
BVGREH-X-Top-view
BVGREH-X-Side-view
BVGREH-X-Rear-view
BVGREH-X-Detailed-view

Downloads

product information

  • Product data sheet BVGREH-X-520

    BVGREH-X-520_PD_2025_10_31_DE_en Product data sheet 440 KB pdf
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We are here for you

Please specify your message and type of request.
Tel.: +49 (0)6621 / 950-0 | Fax: +49 (0)6621 / 950-100

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Thank you for your message!

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
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