Siemens Sentron 3VA Manual page 287

Example of rotary operator with shaft stub:
Lockable positions:
● Position OFF (O)
Locking, blocking or interlocking with cylinder lock (type Ronis)
The cylinder lock (type Ronis) is used, depending on the installation of the cylinder lock
holder, for locking, blocking and interlocking the rotary operators.
● Locking with cylinder lock (type Ronis):
The cylinder lock (type Ronis) locks the rotary operators in the OFF (O) position.
● Mutual interlocking with cylinder lock (type Ronis):
Through use of the cylinder lock insert for interlocking, any number of rotary operators
can be mutually interlocked. This requires that the keys of all opened and locked molded
case circuit breakers be removed and securely stored. Only the key of the rotary operator
which is in the ON (I) position is left in the cylinder lock. This key cannot be removed in
the ON (I) position. This key can only be removed if the rotary operator has been turned
to the OFF (0) position, the cylinder lock has been locked and the molded case circuit
breaker has thus been interlocked. See also chapter Front interlocking (Page 311).
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
Accessories
4.5 Manual operators
285