Esd Guidelines - Siemens SIMATIC ET 200SP System Manual

ESD guidelines

What does ESD mean?
All electronic devices are equipped with large-scale integrated ICs or components. Due to
their design, these electronic elements are highly sensitive to overvoltage, and thus to any
electrostatic discharge.
The acronym ESD has become the established designation for such electrostatic sensitive
components/devices. This is also the international abbreviation for such devices.
ESD devices are identified by the following symbol:
NOTICE
Damage due to voltages
ESD devices can be destroyed by voltages well below the threshold of human perception.
These static voltages develop when you touch a component or electrical connection of a
device without having drained the static charges present on your body. The damage
caused to a device by overvoltage is usually not immediately evident and is only noticed
after an extended period of operation.
Motor starter
System Manual, 04/2016, A5E35582704002A/RS-AA/001
A
63