Accessories
4.3 Connection system
3VA molded case circuit breakers with UL and IEC certification
168
Manual, 01/2019, L1V30435333-01
4.3
Connection system
4.3.1
Introduction
The chapter "Connection technology" contains useful information and provides an overview
of the 3VA UL connection technology. It provides a helpful guide to connecting cables or
busbars to a molded case circuit breaker and so helps to ensure the safety of personnel and
material assets. Mistakes which affect the operational safety of electrical installations can be
avoided.
Contents
The chapter discusses the following topics:
●
General information about cables and busbars
●
3VA UL molded case circuit breakers with
–
Front cable connection
–
Front busbar connector / compression lug connection
–
Rear busbar connector / compression lug connection
●
Further connection accessories
Note
UL connectors
3VA UL connectors are not UL Listed for use with fine-stranded or sector-shaped
conductors.
4.3.2
General information about cables and busbars
Cables and busbars: Cables
Cable designation and cable classes
A key design feature of a cable is its flexibility. This is primarily determined by the number of
cores inside the cable.
