The TMF (thermal-magnetic fixed) trip unit provides overload and short-circuit protection for branch circuits or motor feeders. Rated 125 A means it's sized for a 125 A bus or downstream load — match the frame to the upstream breaker for selectivity.
ABB XT1SU4080AFF000XXX XT1S 125 TMF, current lifecycle
MPNXT1SU4080AFF000XXX
ABB XT1SU4080AFF000XXX, XT1S 125 TMF molded case switch, lifecycle stage current.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
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What is the description of XT1SU4080AFF000XXX?
The part is described as an ABB XT1SU4080AFF000XXX XT1S 125 TMF molded case switch.
MPN
XT1SU4080AFF000XXX