Siemens SIRIUS 3RT - Terminal Cover for Cable Lug Connection and Busbar Connection; Description

Accessories
9.30 Terminal cover for cable lug connection and busbar connection
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
439
9.30
Terminal cover for cable lug connection and busbar connection
9.30.1
Description
Terminal cover for cable lug connection and busbar connection
For 3RT contactors (size S3 to S10 / S12), there are terminal covers for cable lug connection
and busbar connection.
For connection of conductors with cable lugs or connecting bars, the box terminal blocks of
the devices can be detached. The terminal covers are available as touch protection and to
ensure the necessary clearances and creepage distances when box terminal blocks have
been removed.
Table 9- 42 Terminal covers for cable lug connection and busbar connection -
For complying with the phase clearances and as touch protection if box terminal is
removed
Versions
Size
Required number
Function
Terminal cover for cable
lug connection and busbar
connection
2 covers are required per
contactor (for the upper and
lower main connections)
To maintain phase
clearances above
defined connection
cross-sections, offers
touch protection.
• 3RT1946-4EA1
S3
• 3RT1956-4EA1
S6
• 3RT1966-4EA1
S10 / S12
3RT19.6-4EA3 busbar
cover between contactor
and 3RB10 overload relay
(the 3RT1966-4EA3 for
S10 and S12 serves
simultaneously as an
adapter for the 3RT1966-
4EA1 terminal cover for
contactor assemblies)
S6 to S12 1 Offers touch
protection