When I start wiring my layout and control panel, there will be many places where I need to tap into other wires. For example, wiring my switches in parallel with my AIU, voltage meters, and LEDs for the control panel.
When searching for splice connectors like these:
I notice there are two different size channels within each one (say a larger buss wire being tapped by a smaller feeder wire). Are there any where both sides of the connector use the same size wire? Is this what I should be using? I know there are T-Tap connectors too, but these seem like they'd be easier.
Thanks.
Indeed, there are many types - Here is a link to the many products made by one reputable manufacturer.
http://solutions.3m.com/wps/po...3294857497&rt=r3
These connectors are very good when used as intended, but I suggest you do not cheat on the specs. If the maximum size is given as #14 solid do not try to get away with #14 stranded. If the minimum is #22 do not take a #24 and fold it over a number of times to "fake" a #22. Wiring is a pain. Do it once and do it right!
I would also be careful of cheap ebay/Amazon knockoffs.
As far as closing them, if you don't have the official tool you can generally get by with a pair of water pump pliers set so the jaws are nearly parallel as the connector is closed.