Pre-9
Service environment
Item Standard
Remarks
Overvoltage category
II
Pollution degree
II
Protection grade
IP20
Protection class *1
I
Altitude
2,000 m or less
*1) Protection class I equipment
Equipment designed with additional safety measures, without relying solely on the basic insulation to provide
protection against electric shock; where, specifically the current-carrying parts that may come in contact with the
user are connected to the protective grounding conductor in the fixed wiring cable of the facility so that they will
not become live parts even when the basic insulation is damaged. In short, it is equipment that obligates the
grounding connection.
Summary of Contents for ssel
Page 1: ...Operation Manual Eighth Edition SSEL Controller ...
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Page 50: ...25 Part 1 Installation 3 Specification with system memory backup battery optional ...
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