Notes On Connecting - Siemens SIMATIC IOT2000 Series Operating Instructions Manual

Safety notes

2.3 Notes on connecting

ESD Guideline
Electrostatic sensitive devices can be labeled with an appropriate symbol.
NOTICE
Electrostatic sensitive devices (ESD)
When you touch electrostatic sensitive components, you can destroy them through voltages
that are far below the human perception threshold.
If you work with components that can be destroyed by electrostatic discharge, observe the
ESD Guideline.
2.3 Notes on connecting
Risk of fire and electric shock
The on/off switch does not isolate the device from the power supply. Risk of electric shock if
the device is opened incorrectly or defective. There is also a risk of fire if the device or
connecting lines are damaged. Death or serious bodily injury can result.
You should therefore protect the device as follows:
• Always pull out the power plug when you are not using the device or if the device is
• Use a central power isolating switch for cabinet installation.
Risk of lightning strikes
A lightning flash may enter the mains cables and data transmission cables and jump to a
person.
Death, serious injury and burns can be caused by lightning.
Take the following precautions:
• Disconnect the device from the power supply in good time when a thunderstorm is
• Do not touch mains cables and data transmission cables during a thunderstorm.
• Keep a sufficient distance from electric cables, distributors, systems, etc.
12
WARNING
defective. The power plug must be freely accessible.
WARNING
approaching.
IOT2000 Extension Modules
Operating Instructions, 2018/05, A5E39456816-AB