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View Full Version : How does this panel meet code?



Mark Reinmiller
04-22-2015, 01:54 PM
This panel is a Thomas and Betts 200 ampere panel installed 15 years ago. 40 slots. There are two terminal strips for neutrals and grounds each with 20 terminals. As I rear the labeling, I assume only one neutral wire is permitted per screw and two ground wires. Unless you install a bunch of two-wire 240-volt circuits how do you connect all of the wires? Am I missing something?

jack davenport
04-22-2015, 04:23 PM
if it comes down to needing more terminals one can install an additional ground bar for the grounds. thus freeing up terminals on the neutral bars for the neutrals.

Jim Luttrall
04-22-2015, 07:48 PM
This panel is a Thomas and Betts 200 ampere panel installed 15 years ago. 40 slots. There are two terminal strips for neutrals and grounds each with 20 terminals. As I rear the labeling, I assume only one neutral wire is permitted per screw and two ground wires. Unless you install a bunch of two-wire 240-volt circuits how do you connect all of the wires? Am I missing something?

You don't need branch circuit ground terminals if you use conduit for the grounds, nor do you need neutrals on 240 volt circuits. It is up to the installer to add what he needs beyond the basic provisions. Chintzy but acceptable.

Mbrooke
04-22-2015, 09:22 PM
The theory is that the person choosing this panel may be using MWBC, a of 240 circuits, conduit or a ground bar as mentioned above.

I know, it encourages double and triple taps in homes, but it is what it is :(