1. Machine-Readable Product Designation
Structure of Order Number Z
1 L A A A 6 0
1st to 3rd position of order number
(number, letter, letter)
Squirrel-cage motors, Single speed, pole changing, for operation with converter
frame surface cooled Type of protection increased safety EEx e II
Type of protection explosion-proof enclosure EEx e IIC
1 L A
1 M A
1 M J
4th position (number) Range
5th to 7th position (number) Motor size (encoded frame size from 56 to 450)
8th position (number) Number of poles
9th and 10th positions (letters) Version
11th position (number) Voltage, circuit, frequency
12th position (number) Type of construction
Special versions Encoded/ not encoded
Please also specify order code or plain text, as applicable

2. Shaft Height - Overall Length - Frame Size
For example: distance between shaft shoulder and mounting-foot holes
Examples of:
Shaft height:
180
200
Frame size:
180 M
180 L
200 L
Overall length: 7th position in the machine-readable product designation
S = short ( 0,1,2 )
M = medium ( 3,4,5 )
L = long ( 6,7,8 )
The shaft height and overall length are encoded in the frame size

3. Commonly Used Types of Construction