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I've used quite a lot of these!

I've attached CAD files for 3D Printed shrouds to insulate the blocks.  They have a way-higher current rating than most connectors.

I've used Pin type crimp connectors to terminate the wires and clamped them in the holes, much like a connector block.  They've proven reliable even in a moist Defender over long periods.

Connector Block.jpg

 

 

Connector Block Lower.STL

Connector Block Upper.STL

Connector Block.STEP

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On 02/18/2017 at 0:47 PM, DaveSIIA said:

Tinning the ends of the wires and screw in to the block would improve long term reliability.

Don't tin, use crimp on ferruls as in the following link. Tinning screw terminals is not great for long term reliability. I used to tin for neatness too.

http://electronics.stackexchange.com/questions/29861/tinning-wires-that-will-be-screwed-in-to-a-chocolate-block-terminal-strip

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