ABB REL670 - Caution Signs

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Caution signs Chapter 2
Safety information
2 Caution signs
Caution!
Always transport PCBs (modules) using certified conductive bags. Always handle modules us-
ing a conductive wrist strap connected to protective ground and on a suitable antistatic surface.
Electrostatic discharge (ESD) may cause damage to the module since electronic circuits are
sensitive to this phenomena.
Caution!
Do not connect live wires to the IED. Internal circuitry may be damaged
Caution!
Always use a conductive wrist strap connected to protective ground when replacing modules.
Electrostatic discharge (ESD) may damage the module and IED circuitry.
Caution!
Take care to avoid electrical shock if accessing wiring and connection IEDs when installing and
commissioning.
Caution!
Changing the active setting group will inevitably change the IEDs operation. Be careful and
check regulations before making the change.