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MRA - Centrifugal fan

MRA

Centrifugal fan

Medium-pressure centrifugal fans with direct drive. Application: extraction systems for pre-filtered technological dust (eg cutting, grinding, polishing), pneumatic transport (eg PET production), blowing in drying systems, etc.

Can be painted in a color
other than standard

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APPLICATION

Fan designed for transporting non-aggressive and non-explosive gases without contamination. Typical applications:

pneumatic transport,
blowing in drying systems (eg graphic machines and plastics processing),
air blowing systems in combustion / heat treatment systems (eg melting furnaces).

CONSTRUCTION

medium-pressure centrifugal fan with direct drive,
riveted impeller from aluminium sheet with forward curved blades, dynamically balanced according to ISO 1940-1,
aluminium cast housing,
galvanized protective mesh at the inlet,
model 600 is equipped with a motor support,
fan painted grey RAL 7042,
maximum temperature of the transported medium is 80°C,
ambient temperature range from -20°C to + 40°C,
figure LG270.

MOTOR

asynchronous, single-phase, 230V, 50Hz (power from 0.75 to 1.5kW),
asynchronous, three-phase, 230 / 400V, 50Hz (power from 0.75 to 1.5kW),
asynchronous, three-phase, 400 / 690V, 50Hz (with power 4.0kW and 11.0kW),
efficiency class IE3 (power from 0.75 kW) or IE1 (0.75 kW, 230V),
degree of protection IP55,
insulation class F,
three-phase motors are adapted for frequency converter,
for voltage regulation (single phase motors 1.1kW).

SPECIAL EXECUTIONS

optional configuration LG/RD,
colour other than standard,
impeller made of galvanized steel sheet,
impeller made of stainless steel 1.4301,
impeller made of acid-proof steel 1.4404,
motor with voltage and frequency of power different than standard,
motor with other than standard degree of protection,
motor equipped with sensors or additional cooling,
sealing between the housing and the motor,
maximum temperature of the transported medium above 80°C,
ambient temperature range below -20°C and above +40°C.

Technical assistance

Catalog card

Catalog card 2,27 MB

Work characteristics

Dimensions

Type	A	B	C	E	F	S	T	X	Y
	mm	mm	mm	mm	mm	mm	mm	mm	mm
MRA 200T	451	515	360	210	290	91	59	4	17
MRA 200S	451	515	360	210	290	91	59	4	17
MRA 260T	451	515	365	210	290	91	59	4	17
MRA 260S	451	515	365	210	290	91	59	4	17

Type	Z	N1	N2	N3	N4	P1	P2	X1
	mm	mm	mm	mm	mm	mm	mm	mm
MRA 200T	13	46.5	156	215	240	140	200	4
MRA 200S	13	46.5	156	215	240	140	200	4
MRA 260T	13	46.5	156	215	240	140	200	4
MRA 260S	13	46.5	156	215	240	140	200	4

Type	ØO	ØD1	ØD2	ØD3	ØO1	Ød1	Ød2	Ød3
	mm	mm	mm	mm	mm	mm	mm	mm
MRA 200T	9.5	165	139	106	6.6	165	139	100
MRA 200S	9.5	165	139	106	6.6	165	139	100
MRA 260T	9.5	200	182	138	6.6	165	139	100
MRA 260S	9.5	200	182	138	6.6	165	139	100

Type	A	B	C	E	F	S	T	X	Y
	mm	mm	mm	mm	mm	mm	mm	mm	mm
MRA 300T	523	577	421	248	320	98	72	4	13
MRA 300S	523	577	421	248	320	98	72	4	13
MRA 400T	630	705	532	295	400	125	88	8	13

Type	Z	N1	N2	N3	N4	N5	N6	P1	P2
	mm	mm	mm	mm	mm	mm	mm	mm	mm
MRA 300T	13	17.5	167.5	273.5	297	349.5	380	180	230
MRA 300S	13	17.5	167.5	273.5	297	349.5	380	180	230
MRA 400T	13	17.5	167.5	273.5	301.5	349.5	380	180	230

Type	X1	ØO	ØD1	ØD2	ØD3	ØO1	Ød1	Ød2	Ød3
	mm	mm	mm	mm	mm	mm	mm	mm	mm
MRA 300T	8	9.5	200	182	140	6	191	165	125
MRA 300S	8	9.5	200	182	140	6	191	165	125
MRA 400T	8	11.5	234	200	162	6	234	200	160

Type	A	B	C	E	F	S	T	X	N1
	mm	mm	mm	mm	mm	mm	mm	mm	mm
MRA 600T	850	920	678	395	500	150	120	4	30
MRA 600T	850	920	678	395	500	150	120	4	30

Type	N2	N3	N4	P1	P2	X1	X2	ØO
	mm	mm	mm	mm	mm	mm	mm	mm
MRA 600T	290	320	476	390	430	8	4	14
MRA 600T	290	320	476	390	430	8	4	14

Type	ØD1	ØD2	ØD3	ØO1	ØO2	Ød1	Ød2	Ød3
	mm	mm	mm	mm	mm	mm	mm	mm
MRA 600T	280	260	187	8	13	270	240	180
MRA 600T	280	260	187	8	13	270	240	180

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