The part description references XT4S 250TMA, which indicates the frame size (XT4) and the trip unit type (250A thermal-magnetic adjustable). This is the key rating for panel builders and electrical engineers sizing branch circuit protection — the 250A continuous current rating governs conductor sizing and selective coordination downstream.
ABB XT4SU3150BFF000XXX XT4S 250TMA, current lifecycle
MPNXT4SU3150BFF000XXX
ABB XT4SU3150BFF000XXX XT4S 250TMA molded case circuit breaker, current lifecycle stage.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
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Frequently asked questions
How do I get current pricing and availability for XT4SU3150BFF000XXX?
Submit an RFQ through this listing. Pricing and stock are confirmed at quote time — we source through independent distribution and quote to order.
What does the 250TMA in the description mean?
250TMA refers to a 250 A thermal-magnetic adjustable trip unit. This is the continuous current rating of the breaker, used for sizing overcurrent protection in branch circuits.
MPN
XT4SU3150BFF000XXX