This would be a three position terminal block
https://www.alliedelec.com/product/phoenix-contact/1757022/70054840/
Fair enough.
An Allen-Bradley 1492-WTF3 is an example of what I was thinking of.
This would be a three position terminal block
https://www.alliedelec.com/product/phoenix-contact/1757022/70054840/
My final comment is to just make sure the electricians terminating spring clamp terminals understand how to do it properly.
For me spring clamps or "cage clamps" as they are sometimes called.
The problem with the electrician not understanding how to use cage clamps is IMO positively offset by the fact that you can see what you are doing due to that you usually insert the wire from the front.
On screw terminals you insert the wires from the side so you are effectively doing it blind. Have experienced numerous problems due to wires inserted wrongly.
For screw terminals I have also experienced plants where the local electrician failed to tighten the screws on every single terminal. With cage clamps, at least they are self tightening.
For me spring clamps or "cage clamps" as they are sometimes called........The problem with the electrician not understanding how to use cage clamps is IMO positively offset by the fact that you can see what you are doing due to that you usually insert the wire from the front.
Group cage clamp terminals together with push-in terminals. I love cage clamp, and I hate push-in terminals. Sadly, push-in terminals seems to be the new standard in PLC I/O cards.
I moved into engineering and design and my opinion changed after using Wago & Phoenix spring clamp terminals for control wiring (stranded #16 & smaller) on some industrial panels. The connections seemed to hold up well and it was a space saver in the panels because less space is required between the terminals and the wiring duct.
It's true.I'm just curious - with regard to UL certifications - usually you need a torque screwdriver / etc for screw terminals.
I'd imagine that all goes away with push-in or spring terminals. That would probably be worth it alone for those doing UL listed panels.