AC electric motors with squirrel cage rotor of A, AЗ types are used to drive mechanisms, which don’t demand rotational speed adjustment (pumps, fans, and others).

Description:

These motors are rated for operation from AC network, 50 Hz, 6000 V.
The necessity to create some low-voltage asynchronous electric motors of these series appeared for last several days. Technical characteristics are given in the Table 37. Overall dimensions meet overall dimensions of motors for voltage 6000 V.

Rated operating mode – continuous.

А, АЗ motors are started directly, it is provided as at rated voltage, as at voltage reduction during the start up to 0,8 Unom.

The motors enable two cold starts successively or one hot start.

Construction mounting arrangement of the motor – horizontal, without bed plate, with two shield bearings, one free shaft end coupled with the operating mechanism with a half-coupling.

А, АЗ motors are designed protected. They operate with self-ventilation in closed premises with normal environment.

Insulation of stator winding belongs to heat-resistance class not lower “В”.
Stator winding has six outlet ends fixed on four insulators in the terminal box. Phase connection – “star”.
The terminal box is fixed on the right side if you are looking on the free shaft end (left location is specified in the order).
Motors have left and right sense of rotation. Sense of rotation is changed only in rest state.

Motor designation is decoded as follows:
А, A3 – ХХ-ХХХ-Х-ХХХХ4
А – asynchronous motor with squirrel-cage rotor
AЗ – closed asynchronous motor with squirrel-cage rotor
XX – gabarit of the electric motor
XXX – overall length of the stator core, in cm
X – number of poles
ХХХХ – climatic construction

Technical data:

Type of the motor Power, kW Rotational speed, rpm Eff., % cos φ Мmax/Мnom Max GD2 of the mechanism, kg x m2
А 12-32-4УХЛ4 400 1500 93.5 0.89 2.1 600
А 12-41-4УХЛ4 500 1500 93.5 0.89 2.2 750
А 12-52-4УХЛ4 630 1500 94.5 0.89 2.2 950
А 13-46-4УХЛ4 800 1500 95.0 0.90 2.1 1200
А 13-59-4УХЛ4 1000 1500 94.5 0.90 2.5 1400
А 12-35-6УХЛ4 250 1000 92.0 0.85 2.2 600
А 12-39-6УХЛ4 320 1000 92.5 0.86 2.2 750
А 12-49-6УХЛ4 400 1000 93.0 0.87 2.4 950
А 13-37-6УХЛ4 500 1000 93.5 0.87 2.0 2000
А 13-46-6УХЛ4 630 1000 94.0 0.87 2.0 2500
А 13-59-6УХЛ4 800 1000 94.5 0.87 2.2 3200
А 12-35-8УХЛ4 200 750 92.0 0.81 2.1 1500
А 12-42-8УХЛ4 250 750 92.5 0.82 2.1 1900
А 12-52-8УХЛ4 320 750 93.0 0.83 2.2 2500
А 13-42-8УХЛ4 400 750 93.5 0.83 2.1 3800
А 13-52-8УХЛ4 500 750 94.0 0.84 2.0 4500
А 13-62-8УХЛ4 630 750 94.0 0.84 2.1 6400
А 12-42-10УХЛ4 200 600 91.5 0.79 2.4 1500
А 12-52-10УХЛ4 250 600 92.0 0.80 2.5 2000
А 13-42-10УХЛ4 320 600 92.5 0.81 2.1 3000
А 13-52-10УХЛ4 400 600 93.0 0.82 2.0 4500
А 13-62-10УХЛ4 500 600 93.5 0.83 2.1 6500
А 13-42-12УХЛ4 200 500 91.5 0.75 2.3 5000
А 13-52-12УХЛ4 250 500 92.0 0.76 2.3 6000
А 13-62-12УХЛ4 320 500 92.5 0.77 2.1 8500
Type of the motor Power, kW Rotational speed, rpm Eff., % cos φ Мmax/Мnom Max GD2 of the mechanism,kg x m2
A3 12-32-4УХЛ4 400 1500 93.5 0.89 2.1 600
A3 12-41-4УХЛ4 500 1500 93.5 0.89 2.2 750
A3 12-52-4УХЛ4 630 1500 94.5 0.89 2.2 950
A3 13-46-4УХЛ4 800 1500 95.0 0.90 2.1 1200
A3 13-59-4УХЛ4 1000 1500 94.5 0.90 2.5 1400
A3 12-35-6УХЛ4 250 1000 92.0 0.85 2.2 600
A3 12-39-6УХЛ4 320 1000 92.5 0.86 2.2 750
A3 12-49-6УХЛ4 400 1000 93.0 0.87 2.4 950
A3 13-37-6УХЛ4 500 1000 93.5 0.87 2.0 2000
A3 13-46-6УХЛ4 630 1000 94.0 0.87 2.0 2500
A3 13-59-6УХЛ4 800 1000 94.5 0.87 2.2 3200
A3 12-35-8УХЛ4 200 750 92.0 0.81 2.1 1500
A3 12-42-8УХЛ4 250 750 92.5 0.82 2.1 1900
A3 12-52-8УХЛ4 320 750 93.0 0.83 2.2 2500
A3 13-42-8УХЛ4 400 750 93.5 0.83 2.1 3800
A3 13-52-8УХЛ4 500 750 94.0 0.84 2.0 4500
A3 13-62-8УХЛ4 630 750 94.0 0.84 2.1 6400
A3 12-42-10УХЛ4 200 600 91.5 0.79 2.4 1500
A3 12-52-10УХЛ4 250 600 92.0 0.80 2.5 2000
A3 13-42-10УХЛ4 320 600 92.5 0.81 2.1 3000
A3 13-52-10УХЛ4 400 600 93.0 0.82 2.0 4500
A3 13-62-10УХЛ4 500 600 93.5 0.83 2.1 6500
A3 13-42-12УХЛ4 200 500 91.5 0.75 2.3 5000
A3 13-52-12УХЛ4 250 500 92.0 0.76 2.3 6000
A3 13-62-12УХЛ4 320 500 92.5 0.77 2.1 8500