What are the meanings of letters and codes?

Understanding the motor needs to start from the model of the motor, in many motor types to be able to determine at a glance what kind of motor is used in what location and the basic motor parameters is very necessary.These things aren't that difficult, so let's break them down:

Generally speaking, the motor model is composed of product code, specification code, special place code and supplementary code.

Example 1: YB2 280-4w. Y stands for asynchronous motor, B stands for flameproof type, 2 stands for secondary plan, 280 stands for frame size (high performance in the center), S stands for short frame (M stands for middle frame, L stands for long frame), and W stands for outdoor.

Example 2: ykk4502-4. This 4502 represents the second power in the frame size 450.

Motor model analysis diagram

The meaning of the code in the model:

Y- stands for "different" stepper;

B- stands for flameproof, YB stands for flameproof asynchronous motor;

A- stands for "safety" type explosion-proof, YA stands for "safety" type asynchronous motor, YB belongs to "explosion-proof" motor;

K- stands for "empty" cold, such as YKK stands for the body, the primary cooler, secondary cooling medium are all air-cooled asynchronous motor.

S- stands for "water" cooling and "transport" machine. For example, YBKS stands for air cooling inside the motor. The cooler is the explosion-proof motor of the water cooling system.

YBS is the special explosion-proof motor for conveyor.

R- stands for "wound" line rotor motor. For example, YR belongs to wound rotor asynchronous motor.

P- stands for "screen" cover. For example, YP belongs to shielded asynchronous motor.

L- stands for "vertical" type, such as YL is a vertical asynchronous motor;

J- stands for "twisted" motor for vehicle, such as YBJ refers to the special explosion-proof motor for winch;

F- stands for "ventilation" and "dust". For example, YBF stands for special explosion-proof motor for fan, and YFB stands for dust explosion-proof motor.

T- "ventilation" and "same" steps;T, TK, stands for synchronous motor.

W stands for "no" spark and brushless excitation. For example, YW stands for no-spark three-phase asynchronous motor and TAW stands for increased safety brushless excitation synchronous motor.

GB- stands for "tube" channel "pump", for example, YBGB stands for flameproof induction motor for pipeline;

PT- represents variable frequency speed regulation.

Example 3:

Figure of explosion-proof motor model:

Model analysis of explosion-proof motor

Examples are as follows:

YBX3 explosion-proof motor model:

Ybx3-132m2-6f stands for

Y- stands for: asynchronous motor

B- stands for: flameproof

X- stands for: high efficiency and energy saving

3- represents: design serial number, 3 represents three designs

132- representative: center height of frame (132mm)

M- stands for: frame length (M stands for middle frame)

2- for: no. 2 core length

6- representative: number of poles (6)

F- stands for: special environment code (anti-corrosion type)

B3 mounting method: foot connection

B5 mounting method: flange connection

B35 mounting method: base + flange connection

What needs to be noted here is that all models are composed of Chinese pinyin letters, the type of motor installed to understand and remember is very simple, how is it better to understand the motor model?