What the lifecycle stage means for sourcing
The 3-pole FF configuration with UL/CSA listing means it carries the approvals for North American panelboard and switchboard installations per UL 489 and CSA C22.2 No. 5.
The XT5S frame is designed for fixed mounting in distribution switchboards and motor control centers. The FF designation indicates front-face connection terminals, which simplifies bus-bar alignment in multi-breaker lineups.
