Terminal Blocks 12 Position 62PCS Set, Screw Terminal Block with Cover Connector, Bus Bar Terminal Block 12V Dual Row Wire Busbar Terminal Block 600V 15A for DIY Small Electrical Home Circuit Projects

Great deal and quick shipping.

It's a little on the bulky side but works as expected.

The terminal strips were generally of good quality. However, one of the six arrived with one end broken off in the original package. Fortunately, all the plastic and metal parts were there, and, with the aid of some CA superglue, I was able to restore it to working order.

I don't know how they make em so good and sell em so cheap

My husband ordered these for a job for customer.

The design of this bus bar is new to me. A separate, external connector that creates the continuity. I thought it odd but the design of it does offer options. Because of the external connector, you could technically separate portions of one bus bar. For example, if I wanted half the bus bar 12V and the other half 24V, just snip the external connector in half. I don't see myself doing the above but it's an option. Using it as a regular bus bar, it's fine. It works as intended. It has a clear cover to help prevent accidental shorts. The external connector requires that a few screws, at minimum, be tightened down even if empty. There are simpler bus bars/terminal blocks out there. None I've used that stood out as being better than the other at low price points. This works as intended.

These work well - no issues with screws binding, or being too loose when tightening. While I am unable to test the full rating (600V 15A) and I'm only using these for low voltage projects, they do seem a bit small for the lower gauge wire that would be required for high voltage uses above 120V. But for low voltage projects they work great - I have some LED strip lighting projects that are too long to only insert power at the beginning (so they start noticeably attenuating halfway through) and these work great to insert power at other locations for even lighting on the same controller. (And makes it easier to manage the wiring, so I have the main larger power supply feeding into terminal blocks, which are mounted out of sight so the multiple wires coming off of the blocks are easy to keep as short as possible and also out of sight.) I recommend these, but have only used them for 12 and 24V projects so if you have a higher voltage project your requirements will vary, so take that into account.

Installed several of these for heating system 18 gauge thermostat wiring. Worked well. The pre-made jumpers are very handy. Had one of them break when I was tightening a terminal, so probably a little more fragile than typical, but if careful with them, can't beat the price.