ABB AC500 V3 Hardware Manual page 927

2.5.1.3 Power supply units
For the supply of the modules, power supply units according to SELV or PELV specifications
must be used.
2.5.1.4 Electromagnetic compatibility
Electromagnetic Compatibility
Device suitable for:
Immunity against electrostatic discharge
(ESD):
Immunity against the influence of radiated
(CW radiated):
Immunity against transient interference vol-
tages (burst):
2022/01/31
Safety Extra Low Voltage (SELV) and Protective Extra Low Voltage (PELV)
To ensure electrical safety of AC500/AC500-eCo extra low voltage circuits, 24
V DC supply, communication interfaces, I/O circuits, and all connected devices
must be powered from sources meeting requirements of SELV, PELV, class 2,
limited voltage or limited power according to applicable standards.
WARNING!
Improper installation can lead to death by touching hazardous voltages!
To avoid personal injury, safe separation, double or reinforced insulation and
separation of the primary and secondary circuit must be observed and imple-
mented during installation.
– Only use power converters for safety extra-low voltages (SELV) with safe
galvanic separation of the primary and secondary circuit.
– Safe separation means that the primary circuit of mains transformers must
be separated from the secondary circuit by double or reinforced insulation.
The protective extra-low voltage (PELV) offers protection against electric
shock.
Industrial applications
Domestic applications
Electrostatic voltage in case of air dis-
charge
Electrostatic voltage in case of contact dis-
charge
ESD with communication connectors
Test field strength
Supply voltage units (DC)
Digital inputs/outputs (24 V DC)
3ADR010278, 3, en_US
System assembly, construction and connection
AC500-eCo > System data AC500-eCo V3
Yes
Yes
According to IEC 61000-4-2, zone B, crite-
rion B
8 kV
6 kV
In order to prevent operating malfunctions,
it is recommended, that the operating
personnel discharge themselves prior to
touching communication connectors or
perform other suitable measures to reduce
effects of electrostatic discharges.
According to IEC 61000-4-3, zone B, crite-
rion A
10 V/m
According to IEC 61000-4-4, zone B, crite-
rion B
2 kV
1 kV
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