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12 Introduction to the manual
Categorization by frame size and option code
Some descriptions, instructions, technical data and other information that concern only a
certain group of units may be marked with the frame size (such as "R8i", "4×R8i", etc.) The
marking derives from the quantity and basic construction of the modules that form the unit.
For example, the frame size "2×R8i" indicates that the unit consists of two frame size R8i
modules connected in parallel.
The frame size is marked on the type designation labels. The frame size of each unit is also
shown in the rating tables in chapter Technical data.
The information that concerns only certain optional selections is marked with option codes
(such as +E205). The options included in the unit can be identified from the type code visible
on the type designation label. The option selections are listed in section
Inverter unit type
designation key (page
23).
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