The XT3NU4200AFF000XXX: The XT3N 225 TMF designation indicates a 225 A frame size with a fixed thermal-magnetic trip curve — a standard choice for motor branch circuit, feeder, and distribution protection in industrial panels. The TMF trip provides inverse-time thermal protection against overloads and instantaneous magnetic response to short circuits.
ABB XT3NU4200AFF000XXX XT3N 225 TMF Molded Case Circuit Brea
MPNXT3NU4200AFF000XXX
ABB XT3NU4200AFF000XXX, XT3N series, molded case circuit breaker (MCCB), 225 A frame, TMF trip unit.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Product details
Frequently asked questions
Where can I buy XT3NU4200AFF000XXX?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What does the description XT3N 225 TMF mean?
XT3N 225 TMF means this is an ABB XT3N series molded case circuit breaker with a 225 A frame and a fixed thermal-magnetic trip unit. The TMF trip provides inverse-time overload protection and instantaneous short-circuit response.
MPN
XT3NU4200AFF000XXX