ESD guidelines
B
B.1 Electrostatic sensitive devices (ESD)
ESD components are destroyed by voltage and energy far below the limits of human perception.
Voltages of this kind occur as soon as a device or an assembly is touched by a person who is not
electrostatically discharged. ESD components which have been subject to such voltage are
usually not recognized immediately as being defective, because the malfunction does not occur
until after a longer period of operation.
ESD Guidelines
NOTICE
Electrostatic sensitive devices
Electronic modules contain components that can be damaged by electrostatic discharge as a
result of improper handling.
• You must discharge your body electrostatically immediately before touching an electronic
module. To do this, touch a conductive, grounded object, e.g., a bare metal part of a switch
cabinet or the water pipe.
• Always hold the component by the plastic enclosure.
• Electronic modules should not be brought into contact with electrically insulating materials
such as plastic lm, plastic parts, insulating table supports or clothing made of synthetic
bers.
• Always place electrostatic sensitive devices on conductive bases.
• Always store and transport electronic modules or components in ESD-safe conductive
packaging, e.g. metalized plastic or metal containers. Leave the component in its packaging
until installation.
NOTICE
Storage and transport
If you have to store or transport the component in non-conductive packaging, you must rst
pack the component in ESD-safe, conductive material, e.g., conductive foam rubber, ESD bag.
The diagrams below illustrate the required ESD protective measures for electrostatic sensitive
devices.
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03 265
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