Designed for versatile power distribution, the ABB XT1SU3030AFD000XXX is a 3-pole, 30A molded case circuit breaker. It incorporates a fixed thermal and magnetic trip unit (TMF) to deliver precise long-time and instantaneous (LI) protection. The unit-mount configuration installs into ABB SACE Tmax XT panelboards, switchboards, and standard enclosures. It is also an ideal substitute for upgrading aging Tmax T1 series installations.
What wire sizes are compatible with the XT1SU3030AFD000XXX?
The factory-installed lugs accept 10 AWG to 2/0 AWG conductors and are rated for both copper and aluminum wiring.
What does the "S" in the XT1SU3030AFD000XXX part number indicate?
The "S" designates the Standard interrupting capacity tier for the XT1 frame. This provides a 35kA interrupting rating at 480VAC and 65kA at 240VAC.
Can the XT1SU3030AFD000XXX be mounted on a DIN rail?
Yes, this unit-mount breaker can be installed on a standard 35mm DIN rail by using an optional ABB DIN rail mounting bracket kit, such as part number KXT1EDIN-3.
Is the trip unit on this 30A breaker adjustable?
No, this model features a fixed thermal and fixed magnetic (TMF) trip unit. It provides non-adjustable long-time and instantaneous (LI) overcurrent protection.
What enclosures or panels accept the XT1SU3030AFD000XXX?
This unit-mount breaker installs into ABB SACE Tmax XT panelboards, switchboards, and standard industrial enclosures designed for the compact XT1 frame footprint.
How must this breaker be wired for 250VDC applications?
While rated for 250VDC at 42kA, ABB requires wiring two of the breaker poles in series to safely interrupt DC faults at this voltage level.
Does the Tmax XT1 replace older ABB breaker series?
Yes, the SACE Tmax XT1 series is the direct upgrade and replacement for legacy ABB Tmax T1 series molded case circuit breakers.
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