Electric motor 4VR 71 B8

Name: Electric motor 4VR 71 B8
Brand: Электродвигатели

Explosion-proof asynchronous three-phase electric motor

Brand: Электродвигатели

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Product Code: ID9291

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Asynchronous explosion proof motor 4VR 71 B8: Power: 0.25 kW; nominal rated revolution: 750 rpm; casing: silumin alloy; dimension (height of shaft rotational axis): 71 mm; shaft diameter: 19 mm; AC frequency 50 Hz voltage 220/380 V.

Voltage, V:220/380

Power kW:0.25

Vol./Min:750

n, vol./Min:680

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Electric motor 4VR 71 B8

Specifications

Common

Model

4VR 71 B8

Motor type

asynchronous

Kind

explosion-proof

Motor series

4VR

Shaft diameter, mm

Voltage, V

220/380

Frequency of the current, Hz

Power kW

0.25

Vol./Min

750

n, vol./Min

680

Climatic performance

Class of protection, IP

Efficiency, %

58,0

Power factor, cosφ

0,6

Weight, kg

15,6

Consumed nominal current, In (A)

1,2

Dimension (height of rotation axis), mm

Phase

3-phase

The ratio of max. torque to rated power, Mmax/Mn

1,6

The ratio of starting current to the nominal, Istart/In

4,0

The ratio of starting torque to rated power, Mstart/Mn

1,9

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