Euro Screw Terminal Block - Page 1
Forum section: electronics / projects

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: September 27, 2021, 09:15:36 am
content: I'm looking for a quality 10mm spacing, Euro Screw Terminal Block.Not the garbage found from China as seen in blue.Those things are soft (like milk jug plastic) and deform and bend especially when torquing down a wire.Whilst mounting, the screw just pushes aside the plastic in the hole.The result is the block pivots and never tightens down.I've seen something like this by Weco, but is it any good?And unknown:And then Molex:Something solid like the last 2 pictured that doesn't go to support some ePayer's alimony or crack habit would be desired.Everything I find is either $5 for a 3 pole with $8 shipping on ePay, forget Amazone's prices.The other problem from suppliers is everything that was cheaper, is backordered until next Leap Year.Whatever happened to quality?Does anybody know of a reputable cost effective source, for what used to be good quality?

author: Miyuki
author_rank: Frequent Contributor
timestamp: September 27, 2021, 09:39:53 am
content: If you want something sturdy I like more this styleOr some DIN mount onesUnless you need a ton of them just get some from a local distributor and stick with a reasonable brand (not cheap unknown Chinese)

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: September 27, 2021, 09:52:50 am
content: I'm only looking for 18AWG or 0.75 mm2wire size. What you got there looks like it could carry 50A!

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: November 05, 2021, 06:33:06 pm
content: I found some very suitable and reusable (not Wago) blocks. Look up Blockmaster 12mm PA12HDS.Perfect and not crap.https://www.blockmaster.com/products/eurostyle/

author: KaneTW
author_rank: Frequent Contributor
timestamp: November 05, 2021, 06:39:29 pm
content: These kind of blocks are garbage and unusable for any kind of permanent installation. They're considered acceptable for lamps but frankly they're not.For junction box etc. applications, skip screws and use Wago 221s.For DIN rail applications, Phoenix UT or similar if you want screws, otherwise PT.

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: November 05, 2021, 06:46:39 pm
content: Yes the standard China blocks are absolute rubbish.These are not. I'm only passing <5A.They do not deform and they do hold the wires that you install under the screws.Apples and raisins.I can't use Wagos as they would be flapping in the breeze.No box or other enclosure in my application.Just screwed to wood.

author: Monkeh
author_rank: Super Contributor
timestamp: November 05, 2021, 06:48:51 pm
content: Quote from: KaneTW on November 05, 2021, 06:39:29 pmBefore the Wago 221, without DIN rails, and prior to everything being the cheapest product imaginable, these screw terminals were used by the millions (billions? trillions? Anyone got a count?), very successfully.There may be good alternatives to screw terminals today which are faster, more consistent, and so forth - but screw terminalsdo work.

author: Benta
author_rank: Super Contributor
timestamp: November 05, 2021, 07:19:12 pm
content: @OP,please don't modify your post to some micro-font that is completely unreadable. Stick with the default font size.Thanks.

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: November 05, 2021, 07:43:28 pm
content: Are you talking to my original post? Or is it one that has been fixed?

author: Benta
author_rank: Super Contributor
timestamp: November 05, 2021, 07:50:55 pm
content: Your original post. It's unreadable. And it hasn't been fixed.

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: November 05, 2021, 07:59:40 pm
content: It is readable on my PC monitor.I did go back and noticed that it was slightly smaller than the rest of the posts.I then tried to set the font size and it still reads as shown.I tried 14 pt, 18pt in Courier, Arial and Font Face to no avail.The original was not copy paste just typed in.I guess something is broken...Fixed??First I tried "Modify", then I tried the "Modify message" icon and noticed the text in the photo below on every line. Then I deleted all the references and I think it's fixed. Let me know.Small odd print...

author: Benta
author_rank: Super Contributor
timestamp: November 05, 2021, 08:14:57 pm
content: Perfect. It's now readable.

author: Benta
author_rank: Super Contributor
timestamp: November 05, 2021, 08:23:25 pm
content: Is it for solid wire or stranded wire?For stranded wire, the correct mounting is crimping ferrules on the end before mounting.https://www.conrad.de/de/p/vogt-verbindungstechnik-440206-47-aderendhuelse-0-75-mm-unisoliert-metall-100-st-611883.html

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: November 05, 2021, 09:44:21 pm
content: At < 5A it doesn't matter. Those pins weren't around in the 70's.

author: Benta
author_rank: Super Contributor
timestamp: November 05, 2021, 10:01:54 pm
content: Quote from: Quarlo Klobrigney on November 05, 2021, 09:44:21 pmHuh? What's the 70s got to do with it? And it's not about current, but mechanical stability.

author: KaneTW
author_rank: Frequent Contributor
timestamp: November 05, 2021, 11:48:03 pm
content: Quote from: Monkeh on November 05, 2021, 06:48:51 pmThis particular kind (double-sided entry, "Lüsterklemme" over here) was to my knowledge never allowed in distribution panels or junction boxes. You had one-sided entry ("Dosenklemme") screw terminals which are still permissible in junction boxes.And yes, always use a ferrule with flexible wire unless it's specifically allowed by the manufacturer to not use a ferrule, and even then I'd recommend it for longevity and ease of handling.

author: wizard69
author_rank: Super Contributor
timestamp: November 06, 2021, 03:37:52 am
content: Quote from: Quarlo Klobrigney on September 27, 2021, 09:15:36 amNever heard of "Euro Screw Terminal Block", Further I'm not sure what you mean by 10mm spacing. However if you mean panel mount terminal strips, the best I've used is the MK series, from:https://catalog.weidmueller.com/catalog/Start.do?ObjectID=group7868124270769. Weidmuller makes some good stuff.QuoteYes I've run into these basically a use once device.QuoteIt is available, but you will pay for it. I haven't purchased any of the MK series lately so I can't offer up even a guess at the price. In most cases I prefer DIN Rail mount terminal stripsQuoteWell I just had to look up what we once used, which is Digikey #281-4070-ND at $13.07 a piece. This is a 10 circuit block in the small form factor, Weidmuller #0274620000 , in the MK series. They do have larger, this is just what I've used in the past. The bodies are a good hard thermoset plastic. I would suggest buying units that use at least two mounting screws. Weidmullers on line cataloging system sucks but hopefully you can suffer through it, but Digikey is faster if you know what you want.

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: May 11, 2023, 11:27:20 pm
content: Well after all this time, Amazon has them in 2 sizes:https://www.amazon.com/dp/B07Q6KDP9K2 Way Ceramics Terminal Blocks 21.5 x 19.5 x 14.2mm or Electrical Wire Cable 10 PcsAnd:https://www.amazon.com/dp/B09KGQJNRR2 Way Ceramics Terminal Blocks, 25A 380V2 Way 5 Hole 380V 25A, 0.85x x 21.5x 19.5 x 14mmCeramic Connectors 5PcsConsider this post as solved.