The ABB XT7HQ312EEFF000XXX is a Tmax XT7H molded-case circuit breaker rated 1200 A continuous, 3-pole, 600 VAC maximum. That 1200 A frame with the E.DIP LS/I electronic trip unit means it's sized for large feeder or main-breaker duty in a 480 V or 600 V distribution panel — think a 750 kVA transformer secondary or a busway feeding multiple motor control centers.
What the E.DIP LS/I trip unit gives you
On a 1200 A frame, Ir typically adjusts from about 0.4x to 1.0x In — so you can set the continuous pickup anywhere from 480 A to 1200 A to match the actual load without changing the breaker. The instantaneous setting is fixed at roughly 10x In (12,000 A) for this variant, which gives good short-circuit protection while avoiding nuisance trips on motor inrush. No short-time delay or ground-fault function here; that's the LSIG version's job.
Mounts in a standard MCCB cutout — the XT7H frame uses a fixed front-panel mounting pattern with screw terminals for line and load connections. Three-pole design means it occupies a single unit width in a switchboard or panelboard. The E.DIP trip unit is front-accessible for adjustment; no need to pull the breaker to change settings. Verify the bus bar spacing and lug size match your existing panel layout before ordering.
Compliance documentation
ABB provides RoHS and REACH declarations for the Tmax XT7 series. UL 489 listing and IEC 60947-2 certification are standard on this frame. The specific order code carries CE marking for European installations. Documentation (declaration of conformity, installation manual, time-current curves) is available on request with the RFQ.