Main Bus Wiring - Thread from Digitrax List


 

The small side of the AliExpress connectors go down to 22AWG. The large side goes between 18 and 20 AWG.  So while very cool it might not be ideal for drops when 12-16AWG is favored for the bus and 24AWG is favored for the drops.

Best,

Ken Harstine


stevejohns
 

I haven't really looked at aliexpress before thanks for the tip.

I'd like to find a decent solution for tapping into a bus without having to actually cut it and splice which the wago type connectors require.  I have used suitcase connectors in the past with success, but my favorites are the posi-taps but they are pricey.  I haven't found any low cost alternatives yet. 

These look like maybe a good option to try: https://www.aliexpress.com/item/1005002559620031.html?pdp_ext_f=%7B%22sku_id%22:%2212000021141312240%22,%22ship_from%22:%22CN%22%7D&gps-id=pcStoreJustForYou&scm=1007.23125.137358.0&scm_id=1007.23125.137358.0&scm-url=1007.23125.137358.0&pvid=95de0cfb-6ec3-4259-ad14-e5af74b6d7b0&spm=a2g0o.store_pc_home.smartJustForYou_6000851356087.5


Steve Hubbard
 

Correction:  the connectors are 2 in 4 out and 2 in 6 out.


Blair
 

Whups, not so fast.  They were $12 CDN for 10 pcs two years ago including shipping.  Now, it's $17.60 to get 10 here.  So it's approaching break even based on exchange rate, if shipping from Dick to me were free.  Not.  Still, it's closer.

But at $1.76 to splice both bus wires and attach two feeder pairs, or four if you double them up, it's not bad.  Especially since it can be opened for debugging.

Blair


Blair
 

Thanks, Tim.  Been quite a while since I browsed his site.  Still,  the selection and price at Ali is unbeatable - by the time I order from Dick in USD, and pay shipping, etc. to me here in Canada, I'd be paying more than double what I'd pay for them buying from Ali direct, including shipping. All depends on where you live.

Regards

Blair

On 11/30/2021 4:43 PM, Tim wrote:

Dick Bronson used those on our recent rebuild of the model railroad club main yard. He has the 2 in-4 out and 2-in 6 out available on his web page, RR-CirKits, Inc. Home Page

Tim Rumph
Lancaster, SC


Tim
 

Dick Bronson used those on our recent rebuild of the model railroad club main yard. He has the 2 in-4 out and 2-in 6 out available on his web page, RR-CirKits, Inc. Home Page

Tim Rumph
Lancaster, SC


PennsyNut
 

I just saw this thread. When I went to aliexpress, they look like WAGO. So, I would only ask "which is cheaper"?
Morgan Bilbo, DCC since 8/18. Model PRR 1952.


Steve Hubbard
 

I am currently using them and purchased them from Amazon.  They offer both 2 in 2 out and 2 in 3 out.  I have tried multiple styles and they all work however the recent box I bought (Gkeemars) work and mount the best. They seem to be better made also.  I use them on Block sub-Bus's where I know I will be using CT's for monitoring as it's easy to disconnect a wire to slip them on.  For mains to sub-bus's I use the 3M suitcase style with spade connectors. Maks it easy to disconnect for troubleshooting.


Blair
 

Hello, All

This came up on the Digitrax list.  I thought this might be of interest, and certainly more on-topic, here.  For those who don't wish to solder every connection on the layout, it's often necessary to choose a connector, or connector system.  Recently, I've become aware of the "lever-nut" connector systems.  I believe they were pioneered by Wago, but there's lots of options out there now.  Here's a few, from AliExpress.

The following are links to AliExpress web pages; sometimes, you have to select a product variant to see exactly what I'm referring to. You may have to cut and paste carefully into your browser.

https://www.aliexpress.com/item/1005001280222373.html?spm=a2g0o.productlist.0.0.4eb53046oqO5bY&algo_pvid=4e17d467-b917-46d0-a03f-aaf3c08ec9f5&algo_exp_id=4e17d467-b917-46d0-a03f-aaf3c08ec9f5-0&pdp_ext_f=%7B%22sku_id%22%3A%2212000015562805710%22%7D

This one looks even better - one in one out, four taps:

https://www.aliexpress.com/item/1005002566419858.html?spm=a2g0o.productlist.0.0.2f87109cDzeMxD&algo_pvid=3cf600dd-2779-4ca8-9bea-1df4c6a50c01&algo_exp_id=3cf600dd-2779-4ca8-9bea-1df4c6a50c01-42&pdp_ext_f=%7B%22sku_id%22%3A%2212000021177940358%22%7D

They also have these products, which solve the tap problem for two-wire busses simultaneously; best I could find was two in, two out, plus two taps each:

https://www.aliexpress.com/item/1005002187212410.html?spm=a2g0o.productlist.0.0.2f87109cDzeMxD&algo_pvid=f2deae7e-1d79-4448-86ed-41605c50572d&algo_exp_id=f2deae7e-1d79-4448-86ed-41605c50572d-32&pdp_ext_f=%7B%22sku_id%22%3A%2212000018996631528%22%7D

(at that link, select colour option VSE2-4 or VSE2-6)

And, here's a very nice option which includes mounting ears:

https://www.aliexpress.com/item/4000449013640.html?spm=a2g0o.detail.1000060.3.eff110649Q1bCF&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.169870.0&scm_id=1007.13339.169870.0&scm-url=1007.13339.169870.0&pvid=1bc384cd-0160-4d6b-835d-8f566d26ff54&_t=gps-id:pcDetailBottomMoreThisSeller,scm-url:1007.13339.169870.0,pvid:1bc384cd-0160-4d6b-835d-8f566d26ff54,tpp_buckets:668%232846%238113%231998&&pdp_ext_f=%7B%22sceneId%22:%223339%22,%22sku_id%22:%2210000001836473394%22%7D


And choose colour "MULTI" - it was fourth option from the left.  I have no idea how hard it is for you to access these products in the USA.

These products have specifications that I think are "optimistic", but since they rate them at 32A 250VAC, I figure my 3A booster runs at 15Vpp should be okay.

Usually, different handle colours denote separate circuits, so I would expect, for example, colour 2-2 would be a simple inline splice for 2 bus wires, whereas six orange handles, whether arranged in 2 sets of 3, or one set of 6, would be all one circuit.

Blair