Combination With Other Accessories - Siemens 3VA1 100 A Manual

Accessories
4.4 Plug-in and draw-out technology
Markings are visible on the door feedthrough to help the user identify the current position of
the molded case circuit breaker as it is moved into or out of the cubicle. Since mounting
dimensions may vary slightly, however, these markings should be regarded as a rough guide
only. The crank handle mechanism provides the user with feedback information about the
molded case circuit breaker position, e.g. whether it has been correctly inserted.
Benefits of draw-out technology
● Defective molded case circuit breakers can be replaced quickly and easily
● Clear visual evidence of safe electrical isolation of main circuits
● Molded case circuit breaker and accessories can be function-tested in the TEST position
● Remote signaling of molded case circuit breaker positions CONNECT, TEST and
DISCON
● Padlocks and / or cylinder locks can be used to lock draw-out unit so that the molded
case circuit breaker cannot be inserted or removed by unauthorized persons
● Molded case circuit breaker can be operated through the cubicle door
● Degree of protection IP20 at all termination points
● No grounding required
See also
Locking and interlocking (Page 269)
4.4.6.2

Combination with other accessories

See also
Locking and interlocking (Page 269)
224
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02