Help with European Power Symbol 5

[FaradsandkWhs]

Could anyone help me identify a European electrical symbol in the attachment. The AC of the generators is passed through a drive to a DC bus. The DC bus then feeds another drive to an AC motor. What is the symbol between the drives and the DC bus? The DC bus was drawn up by perhaps Dutch or Finnish engineers.
I thought the two vertical lines with a square around it might represent some sort of power capacitor but I'm just guessing.

Thanks for your help in advance!

 

[magoo2]

Looks like a circuit breaker to me. Normally it is drawn without the lines through it.

 

[ScottyUK]

I concur that it is likely a breaker, but it's not a standard European symbol as far as I know. Japanese maybe?


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[7anoter4]

I think that is the symbol of two fuses-one for "+" one for "-".

 

[jraef]

This is about the most comprehensive list of IEC symbols I have ever found, and that is not shown.

But I also found something similar on another website that said it was specific to "drives" that shows a box with a single cross inside and lists the description as "Switch mechanism with mechanical release " with an IEC designation of 102-05-04. But further investigation of that IEC reference number comes up with a footnote that says "Not yet defined".

Given the context I would guess it is two fuses as well, that's a fairly common application for common DC bus drive systems like that.

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[MikiBg]

7anoter4 got it right, that is a symbol for two fuses, i.e. two poles (lines), both protected with a fuse.

 

[FaradsandkWhs]

Thank you so much, everyone! Unless, magoo2 or ScottyUK want to overrule me, sounds like consensus is two-pole fusing.

jraef, thanks so much for the fabulous link. I googled your other information and came across this Moeller wiring diagram booklet (probably what you saw?), specifically pages 9-21 through 9-32 that was also good info.

http://www.moeller.net/binary/schabu/wiring_man_en.pdf