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Is there a connector that I can use with a tinned wire that's easy to attach, are there any solutions available?

I would use a terminal block but having to screw/unscrew several wires in a testing environment will add to production time.

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    \$\begingroup\$ Is the tinned wire attached to the unit to be tested or to the test equipment? If it's attached to the test equipment, can it have anything added to it, like a ferrule, to improve reliability/durability? \$\endgroup\$ Commented Aug 9, 2023 at 18:34

4 Answers 4

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The standard way to do this in a manufacturing environment is to use test fixture grabbers (my site).

They work with any wire, some even with unstripped wire (they perforate the insulation).

E-Z-Nailclip 82-2

{My picture}

Test grabber with wire

{My picture}

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    \$\begingroup\$ Oh! These are really nice! \$\endgroup\$ Commented Aug 8, 2023 at 22:17
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    \$\begingroup\$ These look good. \$\endgroup\$
    – Voltage Spike
    Commented Aug 8, 2023 at 23:06
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There's Wago-clamp style "lever-fixer" screwless terminal blocks.

WAGO Cage clamp

Wago specifies these for stranded and solid wires, bare or crimped to a ferrule.

Similar ideas exist in varying degrees of beefiness. This thing is for 25 mm² to 95 mm² conductors.

Heavy screwless terminal

A much cheaper version might be clamping speaker connectors, but these might need a little more attention to actual connection for reliability.

Plasty McPlastiface Speaker connector array

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  • \$\begingroup\$ I was going to point out Euroblock until I got to thinking "I wonder if there's a version that has a modular connector on the board like Euroblock, but uses Wago-style levers instead of screws for the individual wires". Seems like the LPC is exactly that. \$\endgroup\$
    – hobbs
    Commented Aug 8, 2023 at 20:57
  • \$\begingroup\$ I think Vincent's suggestion is the right answer for this question, unless there's something else the author didn't mention there. Neatly qualifies as a quick-release terminal block. Hard to imagine a better fit. \$\endgroup\$ Commented Aug 8, 2023 at 22:51
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    \$\begingroup\$ Tool less terminal block are only rated for a few insertions, if you are doing any sort of volume, I wouldn't use those. Speaker terminal are better suited. \$\endgroup\$
    – Julien
    Commented Aug 9, 2023 at 18:33
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An exemple a PCB version is available at :

https://www.phoenixcontact.com/en-in/new-products/new-products-device-connection-technology/lever-actuated-pcb-terminal-blocks-and-pcb-connectors

or

https://www.wago.com/us/pcb-interconnect/terminal-strip-with-angled-push-buttons/p/256-405_334-000

These connectors increase reliability because they do not unscrew over time. Implentation example in old design :

enter image description here

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If you aren't going directly to a PCB, the Wago 222/221 series are a good option for connecting wires with quick attachment and easy removal. They also make mounting carriers to hold them in place.

enter image description here

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