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I don't even know what such a part would be called, but here's my problem: I have a bunch of electrical equipment (sensors, relays, etc) on one side of a piece of stainless steel sheet metal. I have a data acquisition card on the other side of said sheet metal. I need to connect the equipment to the DAQ through the sheet metal. I would like to use screw terminals, if possible.

Does a thing like that exist, and what would it be called?

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  • \$\begingroup\$ Is this is what you want sparkydirect.s3.amazonaws.com/1/1205P.jpg ? \$\endgroup\$ – Cornelius Jun 18 '14 at 18:24
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    \$\begingroup\$ With that solution you would drill a hole through the metal and grommet the hole. Without a drawing or more explanation we're kind of in the dark. \$\endgroup\$ – HL-SDK Jun 18 '14 at 18:55
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    \$\begingroup\$ Does the connection need to be waterproof, resistant to temperature or pressure variations over the barrier? Do you need mechanical strain relief on the cables etc. Do you need to unplug one or both sides often, or is it permanent? The answer is very different if this is a pressure vessel or a toaster oven monitor \$\endgroup\$ – shuckc Jun 18 '14 at 18:58
  • \$\begingroup\$ @shuckc, no, nothing needs to be pressure or watertight, nor is temperature a concern. I simply need to pass signals from a device on one side of the sheet to a device on the other. Yes, I will routinely need to adjust the wiring as the particular sensors need regular maintenance. \$\endgroup\$ – Ben S. Jun 18 '14 at 23:46
  • \$\begingroup\$ How many individual signal wires, and power lines do you need to couple. What are the voltages and signal frequencies? \$\endgroup\$ – shuckc Jun 19 '14 at 8:54
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In general, electrical connectors that penetrate bulkheads, while maintaining vacuum, pressure, etc. and preventing shorting of the signal are called "feed throughs" and there are many types. Here a particularly fancy and probably very expensive version. They need not be fancy or expensive though.

enter image description here

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