Siemens ULTRAMAT 23 Series Equipment Manual page 68

Connecting
5.1 Safety instructions
Hazardous contact voltage
Risk of electric shock in case of incorrect connection.
• For the electrical connection specifications, refer to the information in Electrical connection
• At the mounting location of the device observe the applicable directives and laws for
Missing PE/ground connection
Risk of electric shock.
Depending on the device version, connect the power supply as follows:
• Power plug: Ensure that the used socket has a PE/ground conductor connection. Check that
• Connecting terminals: Connect the terminals according to the terminal connection
Unsuitable cables, cable glands and / plug-in connectors
Risk of electric shock and material damage
• Only use cable glands/plug connectors that meet the requirements for electrical safety.
• Tighten the cable glands according to the instructions in the respective manuals / operating
• Close unused cable openings for electrical connections.
• When replacing cable glands, only use ones of the same type.
• Make sure the cables are tight after installation.
Note
Electrical circuit breaker in accordance with IEC 60947-1 and IEC 60947-3
In accordance with IEC 60947-1 "Standard for low-voltage switchgear and controlgear" and IEC
60947-3 "Switches, disconnectors, fuses" you require an electrical circuit breaker for the device.
We recommend commercially available automatic circuit breakers.
68
WARNING
(Page 72).
installation of electrical power installations with rated voltages below 1000 V.
WARNING
the PE/ground conductor connection of the socket and power plug match each other.
diagram. First connect the PE/ground conductor.
WARNING
instructions.
Equipment Manual, 04/2022, A5E37100388-012
ULTRAMAT 23