The XT4LU3125AFF000XXX: The TMF trip unit provides fixed thermal and magnetic protection settings, sized for the 250 A frame. This is a standard molded case breaker for panelboard and distribution applications, mounted on a DIN rail or directly in an enclosure.
ABB XT4LU3125AFF000XXX XT4L 250 TMF, current lifecycle
MPNXT4LU3125AFF000XXX
ABB XT4L series, molded case circuit breaker, order code XT4LU3125AFF000XXX, 250 A TMF trip unit, lifecycle stage current.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
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Frequently asked questions
Where can I buy XT4LU3125AFF000XXX?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is the trip unit type on XT4LU3125AFF000XXX?
It is a 250 A TMF (thermal-magnetic fixed) trip unit, providing overcurrent and short-circuit protection in one device.
MPN
XT4LU3125AFF000XXX