Connecting
8.2 Main connection types for fixed mounting
3VL molded-case circuit breakers
112 System Manual, 03/2009, 110 0110 - 02 DS 01
Auxiliary conductor connection terminal
3VL offers two methods of connecting auxiliary conductors
A) Connection with lug to round conductor connection terminal
The 3VL1-3VL7 round conductor terminals are provided with an M3 drill hole. Using the
screw with contact washer provided, cable lugs up to 2.5 mm² can be connected.
CAUTION
The maximum total ampacity of the round conductor connection terminals must not be
exceeded.
Example:
Round conductor connection terminal 3VL9 115-4TD30 I
max
= 160 A without connected
auxiliary conductor. Auxiliary conductor with 2.5 A load, means I
max
= 157.5 A for the round
conductor connection terminal.
B) Connection with auxiliary connection terminal in box or round conductor connection
terminal
The auxiliary connection terminal is an additional component that is inserted into a round
conductor connection terminal or steel box terminal additionally to the main conductor.
① Main conductor
② Auxiliary conductor connection terminal
③ Round conductor connection terminal
Several auxiliary conductors can be connected to the auxiliary connection terminal:
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