Welded design allows for more working room inside box. Six 1/2 in knockouts (sides). Two 1/2 in knockouts (ends). Three 1/2 in knockouts (bottom). Acceptable for use in 2 hrs rated walls. UL listed.
Acceptable for use in 2 hrs fire rated walls
Welded construction
Line Drawinghttps://assets.unilogcorp.com/187/ITEM/DOC/RACO_100048136_Line_Drawing.pdf