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Installation
1. Cut out an opening in the cover plate.
Refer to the operating instructions for the correct cutout dimensions.
2. Insert the cover frame into the cutout from the front and fasten by means of small spring
steel sheets at the rear of the cover plate.
The fastening system is designed such that the the cover frame can move in the cutout. In
other words, the cover frame is "float-mounted". Tolerance compensation in the range
± 3 mm / ± 0.12" is thus possible in the horizontal direction and in the range ± 6 mm / ± 0.24"
in the vertical direction. On the one hand, this tolerance compensation is required to achieve
the small gap dimension of max. ± 0.5 mm / ± 0.19" between the cover frame and device. On
the other hand, it is needed to compensate for tolerances, e.g. in the panel, which are
always present due to the construction.
Typical tolerance compensation examples are:
● Tolerance compensation of the door angle with right-hinged or left-hinged doors
● Tilting of devices under their own weight when they are fastened to thin mounting plates
①
②
③
④
⑤
⑥
Note
To ensure that the panel door can still be opened, a mounted accessory component must
not project beyond the cover frame by more than 5 mm / 0.19" when the door is closed.
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
Molded case circuit breaker
Motor operator
Cover frame
Panel door (closed)
Panel door (open)
Tolerance compensation
Accessories
4.13 Escutcheon
529
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