ABB S800 - Overvoltage Categories; Equipment Class and Insulation Voltages; Equipment Class; Insulation Voltage

Section 3 Technical Data and Performance Overvoltage Categories
3BSE015969-600 A 119
Overvoltage Categories
Table 20. Overvoltage
Installation type Category Standards
Equipment permanently
co
nnected to low voltage
mains
Overvoltage categories III IEC/EN 60664-1
Equipment not energized
d
irectly from the low voltage
mains
Overvoltage categories II
AC mains power supplies are compliant with Overvoltage Category III networks
(industrial mains). All I/O signals are overvoltage II compliant.
Equipment Class and Insulation Voltages
Equipment Class
The S800 equipment class is Class 1 according to IEC 60536. Class 1 means
protection of electric shock by protective earth connection (PE). In this case this
means a PE- connection must be made to the DIN-rail.
Insulation Voltage
All accessible ports on S800 modules are galvanically isolated from ground and
system. For actual module isolation configuration, consult module data sheets.