Are turret terminals robust for wire to boards connections as shown below? Are there other/better ways to implement this? It might depend on the application I think. I've seen these types of connections used for transmitting power instead of signals.

enter image description here

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    \$\begingroup\$ Is there a problem with using a screw/cage clamp terminal? You need to define what you need to be "robust"... Does the wire get pulled on? Does the wire move a lot? \$\endgroup\$ – Ron Beyer Aug 14 at 13:45
  • \$\begingroup\$ Yes, the wire is in harsh environments. It moves sometimes. \$\endgroup\$ – Blue_Electronx Aug 14 at 13:57

No this is a bad idea. Two problems come to mind immediately. One of the first things I was taught about soldered connections is that you should not rely on the strength of the solder to hold it together, that connection is doing that. In addition soldering the wire creates a stiff area which can result in fatigue failures of the wire depending on the operating environment.

I much prefer to use screw down or lever locked pcb wire connectors like the following.

Image from TE Connectivity Image TE Connectivity

Image from Phoenix contact Image Phoenix contact

Depending on your needs in a production environment you might want to consider a combination of cable connector and a compatible PCB header.

  • \$\begingroup\$ I would like a connector to connect a three phase power supply to a low power circuit. \$\endgroup\$ – Blue_Electronx Aug 14 at 14:13
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    \$\begingroup\$ That can not be answered as is. First that makes your question a shopping question which is off topic here. You need to specify the voltage and current that the connector needs to carry. Then you need to decide the trade-off between labour costs and parts cost for the many different connector solutions that are available. That will depend on your application and production volume. \$\endgroup\$ – RoyC Aug 14 at 14:22
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    \$\begingroup\$ Also note that wires inserted into a terminal block should be bare copper and not tinned for the same reasons. \$\endgroup\$ – rdtsc Aug 14 at 14:38
  • \$\begingroup\$ Can you please provide a citation for the graphics you copied into your answer? We want to make sure that we give credit to the original creator/owner of the images. \$\endgroup\$ – Elliot Alderson Aug 14 at 16:41
  • \$\begingroup\$ @Elliot Alderson Done, however I was considering removing the in image citation on the second image to avoid coming over as recommending one particular manufacturer, where is the balance? \$\endgroup\$ – RoyC Aug 15 at 0:31

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