Siemens NXAIR Operating Instructions Manual page 263

Operating the removable voltage transformers
Fig. 480: Pulling the spring off the fuse-link
Pull the protection fuse-link out of the housing and dispose of it.
Fig. 481: Pulling the fuse-link out
Push the new protection fuse-link into the housing.
Push the spring on the protection fuse-link.
To insert the contact cap, align its guide pin with the angular slot in the housing. Then push
the contact cap into the housing as far as it will go.
NXAIR / ≤ 40 kA
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