ABB XT1S series, XT1SU3050AAA000XXX moulded-case circuit breaker, 125 A frame, TMF trip unit, current lifecycle stage.
For an MCCB in a distribution panel, that simplifies specification: you order the exact rating you need and the breaker arrives calibrated. No field adjustment means no mis-set trip later. The 125 A frame accepts the TMF trip rated for that current — verify your load's full-load amps sit below the thermal curve's continuous rating. In a control cabinet, the compact footprint leaves room for downstream contactors or distribution blocks.
This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for availability and current pricing; no stock count or price is listed on this page.
The evidence does not list a direct pin-compatible alternative. The XT1S series includes other frame sizes and trip units (e.g., XT1S 160 A with TMF or electronic trips), but those differ in rating or footprint. For a drop-in replacement, stick with the same order code.
The lifecycle stage is current.
The description is: ABB XT1SU3050AAA000XXX XT1S 125 TMF / ABB XT1SU3050AAA000XXX XT1S 1. This is a moulded-case circuit breaker in the XT1S series with a 125 A frame and TMF trip unit.
The evidence does not list specific compliance documents (RoHS, REACH, UL, IEC) for this order code. ABB typically provides declarations of conformity and certificates on request; confirm with your sourcing contact at quote time.
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