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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Do the Hubbells have thicker steel spines?

What you describe sounds like the effect of steel near the AC conductors. Keep in mind that the spine of the duplex device passes between the hot and neutral conductors. If you have steel boxes instead of plastic, the steel spine of the duplex device completes a magnetic and electrical circuit with the box. This is a nasty, one-turn transformer coupled to your AC power feed. Even with a plastic box, a steel spine is still a nasty inductor.


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