Accessories
4.3 Connection system
3VA molded case circuit breakers with IEC certificate
240 Manual, 03/2019, A5E03603177010-03
Nut keeper kit, right-angled
The right-angled nut keeper kit can be installed to connect busbars and compression lugs
outside the termination area on the rear panel of a 3VA molded case circuit breaker. The
terminal of the molded case circuit breaker is turned by 90° at right angles, allowing the
busbar or compression lug to be connected at the rear.
Right-angled nut keeper kits may only be connected to phases 1, 3 and 5 (top terminals)
owing to the gases expelled by 3VA molded case circuit breakers.
In addition, a box terminal can also be attached to the right-angled nut keeper kit allowing
direct connection of a cable.
All right-angled nut keeper kits are supplied as standard with phase barriers to provide
insulation between individual phases (see chapter Insulating measures (Page 246)).
An auxiliary connection can be implemented using a special control wire tap. For further
information, please refer to chapter Auxiliary conductor terminal (Page 269).
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