GRM HD Ex – size 250

Three-phase AC motor, size 250, air volume 1930 m³/h to 5786 m³/h, (medium: gas)

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Article	GRM HD 25/2 Ex	GRM HD 25/4 Ex	GRM HD 25/6 Ex
	Product details	Product details	Product details
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Article

GRM HD 25/2 Ex

Centrifugal blower made of metal for high-pressure applications, 2-pole, size 250, three-phase AC, for use in potentially explosive atmospheres, medium: gas

GRM HD 25/4 Ex

Centrifugal blower made of metal for high-pressure applications, 4-pole, size 250, three-phase AC, for use in potentially explosive atmospheres, medium: gas

GRM HD 25/6 Ex

Centrifugal blower made of metal for high-pressure applications, 6-pole, size 250, three-phase AC, for use in potentially explosive atmospheres, medium: gas

Article	GRM HD 25/2 Ex	GRM HD 25/4 Ex	GRM HD 25/6 Ex
	Product details	Product details	Product details

Product type	Centrifugal blower	Centrifugal blower	Centrifugal blower
Article number:	0073.0400	0073.0401	0073.0402
Air flow volume	5.786 m³/h	2.893 m³/h	1.930 m³/h
Rotating speed	2.880 1/min	1.460 1/min	970 1/min
Impeller type	radial	radial	radial
Speed controllable	✔	✔	✔
Reversing capacity	-	-	-
Type of voltage	Three-phase AC	Three-phase AC	Three-phase AC
Rated voltage	400 V	400 V	400 V
Frequency	50 Hz	50 Hz	50 Hz
Nominal output	3.000 W	750 W	370 W
I_nom	5,5 A	2 A	1,25 A
Degree of protection	IP 55	IP 55	IP 55
Insulation class	F	F	F
Pole-changeable	-	-	-
Installation site	Duct connection	Duct connection	Duct connection
Installation position	Horizontal	Horizontal	Horizontal
Material	Sheet steel, galvanised	Sheet steel, galvanised	Sheet steel, galvanised
Housing material	Steel, coated	Steel, coated	Steel, coated
Colour	grey	grey	grey
Weight	39 kg	39 kg	39 kg
Weight including packaging	41 kg	41 kg	41 kg
Width	438 mm	438 mm	438 mm
Height	528 mm	528 mm	528 mm
Depth	530 mm	530 mm	530 mm
Width with packaging	500 mm	500 mm	500 mm
Height with packaging	530 mm	530 mm	530 mm
Depth with packaging	560 mm	560 mm	560 mm
EX designation in accordance with the ATEX Directive	Ex II 2 G	Ex II 2 G	Ex II 2 G
EX designation in accordance with standard	Ex db IIB+H2 T4 Gb X / Ex h IIB+H2 T4 Gb X	Ex db IIB+H2 T4 Gb X / Ex h IIB+H2 T4 Gb X	Ex db IIB+H2 T4 Gb X / Ex h IIB+H2 T4 Gb X
Ta ambient temperature	-20 °C ≤ Ta ≤ +40 °C	-20 °C ≤ Ta ≤ +40 °C	-20 °C ≤ Ta ≤ +40 °C
Operating mode	S1	S1	S1
PTC DIN 44082	M 100	M 100	M 100
Temperature class	T4	T4	T4
Packing unit	1 piece	1 piece	1 piece
Range	C	C	C
GTIN (EAN)	4012799734000	4012799734017	4012799734024

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