When replacing an old engine, the question often arises: how does 4A differ from AIR and whether it is possible to install one instead of the other. Let's take a look.
Series 4A
4A is a series of asynchronous motors of the previous generation, widely used on old equipment. Reliable, but with a more modest efficiency by modern standards.
AIR series
AIR is a more modern single series that replaced 4A. Features improved characteristics and, as a rule, better Efficiency.
Comparison
| Parameter | 4A | AIR |
|---|---|---|
| Poco leniya | Older | Modern |
| Efficiency | Lower | Higher |
| Installation Dimensions | As a rule, the same | |
Interchangeability
In most cases, 4A and AIR of the same power and with the same number of poles areinterchangeable - the installation dimensions are the same. Therefore, if 4A fails, it can be replaced with AIR, often with a gain in efficiency.
When replacing, check the power, speed, axle height and mounting design. If the old engine is still repairable, repair may be more profitable than replacement. consultation will help you choose a replacement.
Do you need to replace or repair a 4A/AIR engine in Tashkent? Elektromotors engineers will help you with your choice - leave a request.