Three -phase asynchronous two -speed electric motors of the 4al -225 and 4al -250 series are used for freight elevators, manufactured for internal needs of the national economy and for export to countries with moderate and tropical climate.
Conditional designation of engine size:
4-serial number of the series;
A is an asynchronous engine with a short-closed rotor;
L-elevator;
225, 250-the height of the rotation axis in mm;
S, M, L is the symbol of the length of the stator core;
6/24-the number of poles;
Y, t, UHL, O-climatic performance according to GOST 15150;
3, 4 - Placement category according to GOST 15150.
|
name |
Power, |
voltage, in |
current frequency, Hz |
efficiency, % |
rotation frequency, r.p.m. |
Mass, kg |
degree of protection |
|
7.5/1.9 |
220/380 |
50, 60 |
85.5/35 |
1000/250 |
290 |
IP10 |
|
|
18/4.5 |
220/380 |
50, 60 |
87/35 |
1000/250 |
425 |
IP10 |
|
|
13/3.25 |
220/380 |
50, 60 |
86/37 |
1000/250 |
350 |
IP10 |
