Siemens SIMATIC ET 200SP Manual page 132

Properties
● Terminal blocks matching all BaseUnits PotDis-BU
– Current carrying capacity per terminal: Max. 10 A
● 18 terminals
– PotDis-TB-P1-R terminal block: Red terminals with connection to the supply voltage
– PotDis-TB-P2-B terminal block: Blue terminals with connection to ground P2 of the
– PotDis-TB-n.c.-G terminal block: Gray (internal not connected) terminals without
– PotDis-TB-BR-W terminal block: White (internal not connected) terminals without
● Connection system in the form of push-in terminals
● You can find the assignment of color-coded labels in the ET 200SP System Manual under
Accessories.
NOTICE
Use of color-coded labels
Before commissioning the system, check that the color-coded labels attached correspond
to the wired potential.
NOTICE
Voltages greater than SELV/PELV
Voltages greater than SELV/PELV are only permitted for the PO PotDis-TBs BR (bridged)
and NC (not connected). This applies equally to protective conductors.
No voltages greater than SELV/PELV are present on the terminals of the PotDis module
with connection to the P1/P2 rails.
BaseUnits (6ES7193-6BP.../3RK1908-0AP00...)
Manual, 02/2018, A5E03727049-AJ
P1 of the BaseUnit PotDis-BU
BaseUnit PotDis-BU
connection to the BaseUnit PotDis-BU
NOTICE
Mixed connection of direct current or alternating current (DC/AC) is not permitted on
the PotDis-TB-n.c-G
Connect direct currents up to 48 V or alternating currents up to 230 V to the terminals
of the PotDis-TB-n.c.-G. A mixed connection of both types of voltages (DC/AC) is not
permitted at the terminals of the PotDis-TB-n.c.-G.
connection to the BaseUnit-BU
NOTICE
Only PotDis-TB-BR may be used for protective conductors.
Check all protective conductors.
Check the required conductor cross-section for the respective plant unit before
commissioning of the plant (especially for motor starters).
Potential distributor modules
6.6 PotDis-TB
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