Accessories
4.8 Residual current devices
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
465
Installation
Installation
Regardless of the type of connection technology installed on the 3VA2 molded case circuit
breaker, the RCD820 is mounted underneath the electronic trip unit of the circuit breaker.
1.
Dismantle the loadside connection components of the molded case circuit breaker and
install the supplied connection components for the residual current device.
2.
Insert the residual current device into the T slots of the molded case circuit breaker.
3.
Push the residual current device backwards until its rear panel is flush with the rear panel
of the molded case circuit breaker.
4.
Screw the molded case circuit breaker to the residual current device. Special connecting
screws are provided on the line side of the residual current device for this purpose.
5.
Place a contact hazard protective cover over the circuit breaker/RCD assembly.
6.
Reinstall the loadside connection components of the molded case circuit breaker at the
outgoing feeder end of the residual current device.
7.
Attach the assembly to a mounting plate using the mounting screws.
Note
Since the outgoing feeder end of the residual current device has exactly the same
connection contours as the 3VA2 molded case circuit breaker, all connection accessories,
such as phase barriers and terminal covers, can also be mounted on the residual current
device.
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