what connectors for 12VDC/5A

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cbueche

cbueche

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Joined 2016
bueche.ch/
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#1
Hello everyone,

I'm looking for wire-to-wire and wire-to-chassis connectors for max 50V/5A DC. Use cases are 5V and 12V DC, 2-3A. Goals are

  • connect a DC12V power module to a wire coming out of a device.
  • connect a DC12V power module to a socket on back of a chassis.
Obviously the power module output should be female to be safe from accidental short-circuit when hanging around, and so the male parts should be on the device side.

I don't want any of those coaxial cheap models like on wall-PSU, they are unstable, cheap, and voltage drop is just too high. 4mm banana not wanted, that should look professional, not "lab on an excursion".

Best would be with some lock-in mechanism, preferably by rotation or screw, not by plastic clips that break after 5 manipulations. Should be either solderable and by screws, and preferably some multi-vendor standard that I would find at Distrelec, Mouser or the other suspects.

Hints welcome 🙂
Charles
 
#4
Aviation connectors would be another choice.
You wire pins in parallel for reaching the Amperage needed.
XLR / Cannon could also be a choice, but are dangerous, unless You use 4 pin or 5 pin which can't mate with speakers or mixing desks. DMX lighting calls for 5 pin, but most cheap stuff uses 3.
 
#8
Probably not much but they are easily interchanged with their cheap brothers with not so good specs. OP also wants a retention mechanism which these lack.

Op also wrote this:

cbueche said:
I don't want any of those coaxial cheap models like on wall-PSU, they are unstable, cheap, and voltage drop is just too high. 4mm banana not wanted, that should look professional, not "lab on an excursion".

Best would be with some lock-in mechanism, preferably by rotation or screw, not by plastic clips that break after 5 manipulations. Should be either solderable and by screws, and preferably some multi-vendor standard that I would find at Distrelec, Mouser or the other suspects.
Click to expand...
 
Last edited:
#11
after looking at the diverse suggestions, I have found the perfect combination in M8 with 4 poles, specified for 60V/3A, I can of course wire 2 poles in parallel. They exists with screws, solder lugs, angled or straight, male and female flying and panel-mount, plus decent pricing and sizing. For those in Switzerland, Distrelec (not affiliated) has them for about 6-7 CHF each as articles 301-64-666 and 301-64-664. Thanks all for your inputs!
 

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#13
At distrelec.ch, I see these 4 brands : Binder, Bulgin Limited, Phoenix Contact and RND Connect (the internal distrelec brand). However if you search "industrial M8 M12 connectors" you will find multiple vendors. Seems like it's a standard for sensors. They have as well multiple "coding", I didn't check this aspect, I suppose it's to avoid mixing them.

My 1st application is 12V DC to my Squeezebox Touch (3 of them). With time the power socket get loose, I open the case, solder wires, and then put a male/female pair of those M8 to be able to disconnect the power module. I can then at some point, eg when running out of projects, build a linear PSU with such a M8 case socket just for the feeling of having a new box on the audio rack 😉
 
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