Installation
52 9229 0025 176 0E
2021-11-15
Removing the transport block from the undervoltage release
Undervoltage release (-Y7)
available?
The vacuum circuit-breaker with an undervoltage release (-Y7) 3AX1103-.. is sup-
plied with a transport block.
• Remove the cover (see “Removing and mounting covers” page 40).
• Shift the retaining screw of the striker pin from position A to B (see the reference
note in the operating mechanism of the vacuum circuit-breaker).
• Turn the locking plate by 180° and cover the thread in position A.
• Screw in the retaining screw in position B.
• Mount the cover again in reverse order (see “Removing and mounting covers”
page 40).
Fig. 77 As-delivered condition – retaining screw in po-
sition A
Fig. 78 Remove the transport block
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