Type designation label
The type designation label includes ratings, appropriate markings, a type designation and
a serial number, which allow identification of each unit. The type designation label is located
on the front cover. A sample label is shown below.
Quote the complete type designation and serial number when contacting technical support.
Type designation, see section Type designation key below.
1
Manufacturing address2
Frame size3
Cooling method4
Degree of protection; UL/CSA specifications5
Ratings, see also chapter Technical data (page 197)
6
Short-circuit withstand strength, see section Electrical power network specification (page 224)
7
Valid markings8
Serial number. The first digit of the serial number refers to the manufacturing plant. The next four digits
refer to the unit’s manufacturing year and week, respectively. The remaining digits complete the serial
number so that there are no two units with the same number.
9
Link to product information10
58 Operation principle and hardware description
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