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split-bus; square d
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  1. Vintage Electrical
    I just came across a 100A single-phase 120/240 Sq D residential panel (still in use) whose MAIN section has not eight spaces for four 2-pole CBs including the lighting main, not 12 spaces for six 2-pole CBs, but TEN spaces. Anybody familiar with these and know why? I double-checked the...
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