User Manual

Safety notes
3
8 | 35 A6V11666339_en--_b
3 Safety notes
CAUTION
General
safety regulations
Please comply with the following general regulations during engineering and
execution:
● Measures/prohibitions to prevent the hazard of electrical and mains power
ordinances for the given country.
● Other applicable, national regulations.
● Building installation regulations for the given country.
● Regulations of the utility company.
● Diagrams, cable lists, dispositions, specifications, and orders by the customer
or authorized engineering office.
●
Third
-
party regulations, e.g. by the general
contractor or building owner.
CAUTION
National safety regulations
Failure to comply with national safety regulations may result in personal injury and
property damage.
● Observe national provisions and comply with the appropriate safety
regulations.
CAUTION
Electrical safety
The electrical safety for building automation and control systems by Siemens
Building Technologies is primarily based on safely separating low voltage from
mains voltage.
CAUTION
IEC
(SELV/PELV) (worldwide)
Application as per SELV or PELV pursuant to IEC 60364-4-41 "Low voltage
electrical installations" depending on the grounding (⊥ AC 24 V) of the low
voltage:
Ungrounded = Safety Extra-Low Voltage (SELV)
Grounded = Protection by PELV (Protected Extra Low Voltage)