Changing the orientation of the rear terminals for main circuit connection (vertical/horizontal)
The rear terminals of the circuit breaker are provided unmounted with the circuit breaker. They
can be mounted oriented horizontally or vertically. The following steps must be observed when
changing the orientation of the rear terminals for main circuit connection (vertical/horizontal).
1. Remove the rear terminals for main circuit connection from the circuit breaker and pull the
terminals out of the insulating frame.
2. Disconnect the two parts of each terminal and place one on top of the other again.
– For vertical orientation: The two widened ends are opposite each other (see gure below).
– For horizontal orientation: The two widened ends are next to each other and point in the
same direction (see gure above)
3. Turn the terminals into the required orientation and insert them back into the insulating
frame.
4. Remount the rear terminals for main circuit connection on the circuit breaker.
Connection and commissioning
5.2Mounting and connecting the device
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03 157
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