Siemens Sentron 3VA Manual page 198

Accessories
4.3 Connection system
Front bus connectors offset (only available for 3VA63 and 3VA64)
The front bus connectors offset enable very large busbars and compression lugs to be
connected outside the termination area of a 3VA UL molded case circuit breaker. The front
bus connector offset increases the distance between pole centers (3VA63 and 3VA64 with
offset = 70 mm / 2.76 inch) of the terminals of the molded case circuit breaker.
You can find information on the required insulation measures in chapter Insulating
equipment (Page 203).
An auxiliary connection can be implemented using a special control wire tap. You can find
more detailed information about this in chapter Control wire tap (Page 219).
The table below provides an overview of the minimum and maximum sizes of cables and
busbars which can be connected by front bus connectors offset.
196
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01