Eaton ESR5-NO-31-UC Manual page 20

7.1 Insolation coordination
16
A1/A2 Logik
6 kV 
A1/A2 -
ST
Logik - -
13/14 - -
23/24 - -
33/34 - -
41/42 - -
Key:
BI Basic insulation
ST Safe isolation
BASIC ISULATION
(rated surge voltage of 4 kV)
A mixture of SELV and PELV is strictly prohibited. Only switch
230 V AC at one of the enable contacts if the adjacent contact
carries the same potential.
Safe isolation/reinforced insulation
(rated surge voltage of 6 kV)
Reinforced insulation (e.g., thanks to greater air clearances and
creepage distances between conductive paths) is designed for
one overvoltage category higher than basic insulation. This
means that SELV circuits of U ? 25 V AC or U ? 60 V DC and cir-
cuits with higher voltages can be mixed.
Manual ESR5-NO-31-UC 07/2017 MN049014 EN www.eaton.com
13/14 23/24 33/34
6 kV  6 kV  6 kV 
ST ST ST
6 kV  6 kV  6 kV 
ST ST ST
6 kV  6 kV 
-
ST ST
- - 4 kV
BI
- - -
- - -
41/42
6 kV 
ST
6 kV 
ST
6 kV 
ST
4 kV
BI
4 kV
BI
-