build-lateral electrical security

Hi!
I am translating the operating instructions of a cutting mill.
In the "Technical Data" section, in the "Cutting mill with a hopper" subsection I found "Build-lateral electrical security" and then the value for it says "63 A". I'm not sure what "build-lateral" in this context may mean, so if anyone of you knows and could tell me I'd be very grateful!!

I've been in the electrical machinery field for over 40 years and I can't imagine what this is trying to say.....Could you show more context? Is it possible that the phrase was incorrectly translated from some other language?

I think the text I'm translating was translated from German to English. And now I have to translate it into Spanish. I have attached an image of all the context I can give you because there's any other context. I hope that helps!
👁 build lateral.jpg

I think they were trying to indicate the rating of the main disconnect device (interruptore o desconector) There are quite a few other problems with the text in the image. The field "connected load" does not show the load (in amperes or kW) but incorrectly shows the size of the conductors (4 conductors at 16 square millimeters each). The word "essay" should probably be assembly. "3 Phases" should read 3 phase. 1500 Upm should read 1500 RPM (revolutions per minute).

If you could get the original German, I could help you.