Mounting - Siemens SIRIUS 3RU Manual

10.7.2

Mounting

Mounting the terminal cover for cable lug connection and busbar connection
The diagram below shows an example mounting scenario of the terminal cover for cable lug
connection and busbar connection based on mounting the 3RU21 thermal overload relay in
size S3.
①
②
③
④
SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic overload relays
Manual, 09/2016, A5E03656507420A/RS-AB/003
10.7 Terminal cover for cable lug connection and busbar connection
Position the screwdriver on the terminal support as shown in the figure, in the middle between
the overload relay and the removable box terminal block.
Carefully lever the detachable box terminal block from the overload relay.
Detach the detachable box terminal block from the overload relay in the downward direction.
Slide the terminal cover for cable lug connection and busbar connection into the guide tabs on
the overload relay.
Accessories
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