b-boy
Well-known member
I bought 4 of these Burndy Unitaps: https://www.grainger.com/product/22...kwcid=AL!2966!3!264955915667!!!g!461787464874!
They weren't cheap. I used them to splice SER 2-2-2-4 to THHN/THWN inside a box in my crawlspace.
They use a hex screw to secure the cable inside a small, insulated AL block. While installing them I had some issues while unscrewing the hex screws to insert the cable end. Several of them were very tight, and difficult to unscrew. I really had to force the screw to turn. I needed more force than I thought I should.
In one case, I couldn't insert the cable into the block. It turns out there were strips of AL in the block. The screws were cross threaded causing AL shavings to deposit in the block.
I'm a little concerned about these now. If the threads are stripping, will I get a secure connection? I'm tempted to pull them out and replace them with Polaris connectors.
I've contacted the company, but I haven't heard back yet.
Does anyone have experience with these connectors?
They weren't cheap. I used them to splice SER 2-2-2-4 to THHN/THWN inside a box in my crawlspace.
They use a hex screw to secure the cable inside a small, insulated AL block. While installing them I had some issues while unscrewing the hex screws to insert the cable end. Several of them were very tight, and difficult to unscrew. I really had to force the screw to turn. I needed more force than I thought I should.
In one case, I couldn't insert the cable into the block. It turns out there were strips of AL in the block. The screws were cross threaded causing AL shavings to deposit in the block.
I'm a little concerned about these now. If the threads are stripping, will I get a secure connection? I'm tempted to pull them out and replace them with Polaris connectors.
I've contacted the company, but I haven't heard back yet.
Does anyone have experience with these connectors?