SIRIUS 3RT2 contactors/contactor assemblies
2.7 Accessories
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
187
2.7.6.3 Operation
The mechanical latch can be operated with alternating and direct current; it can be activated
and deactivated electrically and manually. The illustrations below show how to operate the
mechanical latch manually.
Table 2- 41 Operating the mechanical latch
Step Operating instruction Image
1 To activate the latch, press the left plunger.

2 To deactivate it, press the right plunger. It
can only be unlocked if the contactor coil is
not excited.
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