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Old 09-20-2014, 05:56 AM   #27
FF
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Join Date: Oct 2007
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My vote is always for rings , not spades as they cant shake loose.

Some terminal blocks are very narrow , designed for spades , there I simply trim the ring to the ptoper width and still have more contact area than the spade.

Single or stacked a good procedure is a star washer on top of the stack under the nut..

IF the terminal end gets warm it will expand , and then shrink back, more so if there is a stack.

The star washer puts pressure on the terminal end and assures good contact , after thousands of cycles.

Some quality mfg use lock washers on their terminal blocks , but star washers work better.

A great rainy day project as you clean the old terminal ends with a scotch brite pad .
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