Centrifugal blower

GRM 16/2 D Ex

Article number: 0073.0389
Manufacturer: MAICO
Centrifugal blower, size 160, three-phase AC, for use in potentially explosive atmospheres, medium: gas
Application examples: explosion-proof industrial applications
Product data sheet
GRM 16/2 D Ex IM0020476.PNG Centrifugal blower, size 160, three-phase AC, for use in potentially explosive atmospheres, medium: gas
GRM 16/2 D Ex IM0017898.PNG Centrifugal blower, size 160, three-phase AC, for use in potentially explosive atmospheres, medium: gas
Back
  • On the notes
GRM 16/2 D Ex

Characteristic curve

GRM 16/2 D Ex - Characteristic curve

Dimensioned drawing

GRM 16/2 D Ex - Dimensioned drawing [mm]

GRM 16/2 D Ex - Dimensioned drawing Housing orientation [mm]

  1. RD Right-hand version
  2. LG Left-hand version

The GRK 12/2 E and GRK 12/4 D variants are not available in right-hand version RD!

The standard orientation is always LG 270°

Technical data

GRM 16/2 D Ex - Technical data

Article GRM 16/2 D Ex
Air flow volume 2.318 m³/h
Rotating speed 2.880 1/min
Impeller type radial
Speed controllable ✔
Reversing capacity −
Type of voltage Three-phase AC
Rated voltage 400 V
Frequency 50 Hz
Nominal output 750 W
Inom 1,8 A
Degree of protection IP 55
Insulation class F
Pole-changeable −
Installation site Duct connection
Installation position Horizontal
Material Sheet steel, galvanised
Housing material Steel
Colour grey
Weight 17 kg
Weight including packaging 18 kg
Size 160 mm
Width 390 mm
Height 355 mm
Depth 318 mm
Width with packaging 520 mm
Height with packaging 480 mm
Depth with packaging 440 mm
EX designation in accordance with the ATEX Directive Ex II 2 G
EX designation in accordance with standard Ex db IIB+H2 T4 Gb X / Ex h IIB+H2 T4 Gb X
Ta ambient temperature -20 °C ≤ Ta ≤ +40 °C
Operating mode S1
PTC DIN 44082 M 100
Temperature class T4
Packing unit 1 piece
Range C
GTIN (EAN) 4012799733898
Article number 0073.0389

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA5, S5 (dB(A))

53

64

79

81

82

83

81

75

89

LWA5= free inlet sound power level in dB.

Accessories

GRM 16/2 D Ex - Accessories

Specific accessories

Product type Name Art. No. Price*(EUR) Action
Transition adapter URRI 16 0073.0300 on request
  • On the notes
Machine protection relay thermistor TMS 0157.0992 on request
  • On the notes
Differential pressure switch DDEx 500 0157.0302 on request
  • On the notes
Motor base MSI 16-18 0073.0296 on request
  • On the notes

General accessories

Product type Name Art. No. Price*(EUR) Action
Air outlet grille SGAI 16 0073.0291 on request
  • On the notes
Inlet protective grille SGEI 16-18 0073.0287 on request
  • On the notes

Product description

Productdescription

GRM 16/2 D Ex

short description

Centrifugal blower, size 160, three-phase AC, for use in potentially explosive atmospheres, medium: gas

Product description

Features

  • Centrifugal blower made of metal for applications in areas subject to explosion hazards.
  • Explosion protection tested in accordance with Directive 2014/34/EU.
  • Qualified for all gases and vapours of Ex group IIA and IIB and also for hydrogen.
  • Ex II 2 G Ex db IIB+H2 T4 Gb X / Ex II 2 G Ex h IIB+H2 T4 Gb X.
  • For usage temperatures of -20°C ≤ Ta ≤ +40°C.
  • MAICO Ex fans fulfil the safety requirements of European Directive 2014/34/EU for units and protective systems in potentially explosive atmospheres.
  • For zone 1 and 2.
  • Types of ignition protection: “d” – pressure-proof housing and “c” – constructional safety.
  • Powerful fans for industrial applications.
  • For simple and direct mounting on a duct system.
  • The motor is outside the air flow.
  • Sheet steel housing.
  • Standard orientation for LG 270° housing.
  • Suitable for temperature ranges from -20 °C to +40 °C.
  • The intake socket, made of coated sheet steel, is included in the scope of delivery.
  • Centrifugal impellers with forward curved blades made of galvanised sheet steel.

Three-phase AC motor

  • Three-phase AC motor.
  • IP 55 degree of protection.
  • IE3 motor.
  • S1 operating mode (continuous operation).
  • Temperature class T4.
  • Speed-controllable with frequency converter.
  • Permissible frequency range for speed control with frequency converter 20-50 Hz.
  • The temperature in the fan motor is monitored by PTC thermistors. The PTC thermistors must be connected to a triggering system (safety device according to Directive 2014/34/EU), that separates the fan permanently from the power if the temperature gets too hot.

Electrical connection

  • Connection in the terminal box on the motor.
  • Cable screw connection, in Ex d version, included in the scope of delivery.

Special versions

  • The following special versions are available on request, at an extra cost:
    • Deviating housing orientation.

Table of contents

Wiring diagram

GRM 16/2 D Ex - Wiring diagram



Predecessor - successor

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