– Fasten the circuit breaker to the rear wall of the switchboard panel with 4 screws (included
in the scope of delivery) with a tightening torque of 8.6Nm.
2. Screw the busbars/cables of the main conductor paths to the connections of the circuit
breaker (for tightening torques, see table Tightening torques at a glance (Page154)).
Note the operating instructions of the relevant connection system (see Chapter Reference
documents (Page10)).
3. Mount the prescribed insulation accessories.
You will nd information about the insulation measures in Chapter Isolating distances and
insulating equipment (Page147). When mounting the insulation accessories, follow the
relevant Operating Instructions (see Chapter Reference documents (Page10)).
4. Mount the armature plates for protection from short-circuits (see Chapter Armature plates
(Page149)).
Note
Fixed-mounted circuit breakers do not need to be grounded.
Connection and commissioning
5.2Mounting and connecting the device
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
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