3
Safety notes
Electrical connection
Manual – PROFINET IO Interfaces, Field Distributors
13
•
Above 2000 m asl, the air and creeping distances are only sufficient for over-
voltage class II according to EN 60664. If the installation requires overvoltage cat-
egory III according to EN 60664 you have to reduce the overvoltages on the sys-
tem side from category III to II using additional external overvoltage protection.
•
If a protective electrical separation is required, then implement this outside the
product at altitudes of more than 2000 m above sea level (protective separation in
accordance with EN 61800‑5‑1 and EN 60204‑1)
3.8
Electrical connection
Make yourself familiar with the applicable national accident prevention guidelines be-
fore you work on the product.
Perform electrical installation according to the pertinent regulations (e.g. cable cross
sections, fusing, protective conductor connection). The documentation at hand con-
tains additional information.
Make sure that all required covers are installed correctly after electrical installation.
Make sure that preventive measures and protection devices comply with the applic-
able regulations (e.g. EN 60204-1 or EN 61800-5-1).
3.8.1
Required preventive measure
Make sure that the product is correctly attached to the ground connection.
3.9
Protective separation
The product meets all requirements for protective separation of power and electronics
connections in accordance with EN 61800-5-1. To ensure protective separation, all
connected circuits must also meet the requirements for protective separation.
22870857/EN – 12/2016
