Siemens SIRIUS 3RT - Mechanical Latch; Description

Accessories
9.7 Mechanical latch
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
323
9.7
Mechanical latch
9.7.1
Description
The mechanical latch for the 3RT2.2 power contactors ensures that the contactor remains
switched on even if there is a voltage failure. The release coil has an ON period of 100%.
Table 9- 23 Versions of the mechanical latch
Design of the mechanical latch
Article number
24 V AC/DC
3RT2926-3AB31
110 V AC/DC 3RT2926-3AF31
230 V AC/DC
3RT2926-3AP31