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#219339 05/06/18 09:50 AM
IMG_20180425_170408.jpg
Joined: Oct 2016
Posts: 10
T
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Plug terminals

This morning ,I got a three-phase plug with 6 wire terminals( see pictures), L1 , L2, L3, N/W, Earth, and a "pilot" terminal, I don't know what 's the "pilot" terminal use for , for testing or other purposes ?
8 Comments
Tjia1981 #219361 05/21/18 04:40 AM
Joined: Dec 2002
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G
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Typically to operate a contactor, controlling the supply.

Tjia1981 #219364 05/21/18 10:41 AM
Joined: Oct 2016
Posts: 10
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Hi ,geoff, Thank you for your answer

This picture was taken in my workshop , and these three-phase plug mainly used for connecting equipment like water pump , electric welding machine to the AC 380V distribution box on the wall´╝îno control circuit inside the distribution box , and controlling the power supply only by RCD


Tjia1981 #219374 05/23/18 12:24 PM
Joined: Dec 2002
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Well, just not used in your case, and probably has no connection, but that's what it was intended for if needed.

Tjia1981 #219377 05/24/18 12:06 PM
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Perhaps an indicator light, or a monitoring device?



John
Tjia1981 #219459 07/16/18 10:03 AM
Joined: Aug 2008
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If it's a CEE Standard plug, the Pilot contact is for operating a Contactor, so the plug contacts don't wear off when connecting or disconnecting under load.
See here, chapter 4.1 https://en.wikipedia.org/wiki/IEC_60309

Tjia1981 #219460 07/18/18 10:01 AM
Joined: Oct 2016
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Hi, andey. This is a "MENNEKES" plug with made in Germany, I have seen the fully detailed explanation about the "pilot" contact on wikipedia website, thank you for your help!


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