Technical specification

Voltage

The voltage and the frequence are in accordance with DIN/EN 60034-1. Within the first range, voltage has a maximum deviation of +/- 5% and frequency +/- 2%; within the second range the deviation of voltage is +/- 10% and frequency +3/-5 %. Electric motors are marked according to the IE2 standard:

Electric motor isolation

Standard electric motors have an isolation class of “F”.

Rated power

In order to run the electric motors at constant rated power according to DIN/EN 60034-1, the electric motors need to be powered at the constant frequency of 50 Hz, be maintained within the temperature of -20 to +40 °C and not higher than 1000 m above sea level.

Protection class

All electric motors are built in accordance with the IP 55/g DIN/EN 60529 protection class standard.

Casing

Electric motors with aluminium casing are built from die-cast aluminium, iron casing from cast iron. The position of the junction box can be changed with the help of the mounting feet (bolted mounting feet sizes 56-132). Unless defined differently in product specification.

Balance

Rotor of the electric motor is dynamically balanced; the level of vibration is in accordance with EN 60034-14 standard.

Ball bearings

The ball bearings of the electric motors are high quality (manufactured by FAG, SKF, NSK, NTN, INA). Guaranteed 40 000 hours of operation through clutch, without physical force placed on the axis. Guaranteed 20 000 hours of operation with horizontal positioning and maximum stress allowed placed on the axis.

Cooling

Electric motors are equipped with cooling fans that work regardless of the axis spin direction (IC 411 according to EN 60034-6). Cooling fan cover is made from steel sheet..

Paint

Electric motors are painted with either RAL 7030 (gray) or blue. The lacquer is optimised for the usage within temperate climate range (IEC 721-2-1), both for indoors and outdoors usage.

Mounting feet

Electric motors with aluminium casing are equipped with removable mounting feet, each of which is fastened with two screws. The screws mentioned are adjustable, which allow to change the placement of the junction box (left or right). Unless defined differently in product specification.

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