A note on SWD circuit breakers(CB). The 2002 NEC requires HID rated CB's for switching HID lighting. Since a HID CB is also rated for SWD duty, manufacturers are doing away with the SWD and only making a SWD type. I checked in a Sq D cat and there were no SWD CB's shown.
And I don't know if there is a cost difference between the two.
