Siemens SENTRON 3VL System Manual page 226

Dimensional drawings
13.2 VL400 (3VL4), 3- and 4-pole, up to 400 A
Extension collar mounted on guide rail
(1)
(4)
(5)
(6)
(7)
(8)
(10)
(11)
226
Plug-in socket with terminal covers
Cover frame for door cutout
(for circuit breakers with operating mechanism)
Terminal covers (standard)
External surface of cabinet door
Mounting level
Extension collar
Locking device for the racking mechanism
Racking mechanism
3VL molded-case circuit breakers
System Manual, 03/2009, 110 0110 - 02 DS 01