Mike — You nailed the description exactly. “Q-frame” was the one—I forgot about those triple-cheesy ‘swing-around’ bus clips. If aluminum bussing ever had a hope for switchgear, Zinsco did their level best as a prime example of how NEVER do it. They may have well been in cahoots with a few fire-insurance carriers for the extra premiums.
Another thing I remember from earlier decades was that they always had rock-bottom prices for their 200A meter/main/panelboard—they did it by always making the main breaker an added accessory, and it was a fine P-O-S in its own right. I think they led the pack in introducing one of the first plug-in 200A-frame breakers.
[This message has been edited by Bjarney (edited 10-02-2003).]
