Published On: Wed, Feb 10th, 2021

Practical problem of connecting a low voltage manual switch for high currents with a solution

Author: Radoje Jankovic

Pictures are from my friends.

Problem text

Figure 1&2 shows the cable lug for cable cross-sections of 240 mm2 to be connected to the connection terminals of the manual low-voltage power switch in one distribution cabinet. Since the 240 mm2 foot as shown in the figure cannot fit under the switch connection screw, how would you solve this on the spot?

Fig. 1.
Fig. 2.

Solution of the problem

The problem can be solved by using narrower cable lugs for the same cross section as seen in Fig. 3 and FIG. 4.

Fig. 3.
Fig. 4.
Fig. 6. Example from practice incoming single 240 mm2 cables in a switchboard
Fig. 4. Example from practice. Outgoing cables from manual three pole three-phase power switch.

It can also be solved by using prefabricated sockets made of profiled galvanized or non-galvanized copper, which are shown in Fig. 5.

Fig. 5.

It should be emphasized here that the manufacturers of these switches also supply the switch and the connecting elements. Some, unfortunately, do not do that, or the switch customer does not state that in their order request.

About the Author


Displaying 9 Comments
Have Your Say
  1. erotik says:

    how do I show my super post a underline on mouse hover and either bullet or number list? Roxie Maxim Rheba

  2. turkce says:

    I visited various sites but the audio quality for audio songs current at this site is genuinely marvelous. Stephie Dennie Euh

  3. erotik says:

    Merely wanna state that this is handy , Thanks for taking your time to write this. Pru Iver Lathan

  4. escort bayan says:

    You ought to be a part of a contest for one of the most useful websites on the net. I will recommend this web site! Andree Emmerich Shay

  5. escort bayan says:

    I know this site gives quality based posts and other material, is there any other site which offers such stuff in quality?| Cassi Garfield Darin

  6. erotik says:

    If some one needs expert view on the topic of blogging and site-building afterward i suggest him/her to pay a quick visit this website, Keep up the good job.| Meghan Waverley Iyre

  7. erotik says:

    Awesome post. I am a regular visitor of your site and appreciate you taking the time to maintain the excellent site. I will be a frequent visitor for a really long time. Shandie Farlee Haze

  8. sexy says:

    Hi, just wanted to say, I enjoyed this article. It was funny. Vivianne Izaak Avraham

  9. bet2you says:

    Hello, I enjoy readinhg all off you post. I wanted to write a little comment to support you. Cherish Kingsley Wendy

Leave a comment

XHTML: You can use these html tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

Practical problem of connecting a low voltage manual switch for high currents with a solution