Siemens SIMATIC ET 200SP Manual page 57

Properties
● BaseUnit suitable for all I/O modules of BaseUnit type "C0/C1". Can be recognized by the
last two digits of the article number.
– Current-carrying capacity per process terminal (terminal 1 to 4): Max. 5 A
– Current carrying capacity per process terminal (terminal 5 and 6): Max. 10 A
● The BaseUnit conducts the potential group further. The self-assembling voltage buses P1
and P2, and the AUX bus are connected to the left-hand neighboring module (BaseUnit).
● Access to the AUX busbar via terminals
● 6 terminals to the process (assignment with the I/O module)
● Two AUX terminals for connecting a PE terminal or potential. The AUX busbar is not
connected to the I/O module.
● Connection method using push-in terminals
BaseUnits (6ES7193-6BP.../3RK1908-0AP00...)
Manual, 12/2016, A5E03727049-AG
BaseUnits for I/O modules
3.12 BU20-P6+A2+4B (BU type C1)
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