Siemens 3RK1308‑0 00‑0CP0 Series Equipment Manual page 86

Functions
6.6 Calculating switching cycles
As from a starting current of 65 A in the case of the 9 A and 12 A motor starters, consider the
device protection model for calculation of the switching cycles. The following graphics show
the minimum idle time depending on the starting current:
Minimum idle time (T
Minimum idle time (T
86
) 9 A motor starter at I
Off
) 12 A motor starter at I
Off
I = 8
Startup/ rated_motor
/I = 8
Startup rated_motor
Equipment Manual, 11/2019, A5E34821005002A/RS-AC/003
Motor starter (3RK1308‑0**00‑0CP0)