Connection and commissioning
5.2 Mounting and connecting the device
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
176
Manual, 10/2018, L1V30499596002-01
Wall mounting (For the drilling template, see Chapter Switchboard panel, hole and drilling
templates, fixed breaker (Page 228)):
–
Fasten the guide frame to the rear wall of the switchboard panel with 4 screws
(included in the scope of delivery) with a tightening torque of 21 Nm.
①
Insulating plate for extended front terminals, to be provided by the customer
2.
Ensure that the guide frame is grounded (see Chapter Power supply, grounding, and
connection (Page 151)).
3.
Screw the busbars/cables of the main conductor paths to the connections of the
withdrawable breaker version (for tightening torques, see table Tightening torques at a
Note the operating instructions of the relevant connection system (see Chapter
Reference documents (Page 10)).
4.
Mount the armature plates for protection from short-circuits (see Chapter Armature plates
(Page 159)).
5.
Insert the circuit breaker into the guide frame (see Chapter Racking the circuit breaker
(withdrawable breaker) (Page 200)).