Accessories
4.4 Plug-in and draw-out technology
3VA molded case circuit breakers with IEC certificate
292 Manual, 03/2019, A5E03603177010-03
Cylinder lock for protection against unauthorized operation
A cylinder lock can be retrofitted in the right-hand side wall of the draw-out socket. Like the
plastic frame and padlocks, this cylinder lock is capable of locking a molded case circuit
breaker in either the CONNECT, TEST or DISCON position. The cylinder lock utilizes the
locking mechanism of the plastic frame. This is evident from the way the plastic frame moves
into or out of the socket as the cylinder lock is turned.
Signaling of locked/unlocked status
The locked or unlocked status of a draw-out unit can be signaled electrically. This requires
the installation of a position signaling switch (3VA9987-0KB00) in the right-hand side wall of
the draw-out socket. This switch signals whether the plastic frame described above is in the
"IN" or "OUT" position. For further details, refer to chapter Position signaling switches
(Page 295).
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