Built for demanding industrial environments, the XT1HU3110AYD000XXX is a 110-amp, 3-pole molded case circuit breaker from ABB. It mounts into ReliaGear neXT panelboards and ReliaGear SB switchboards, offering a compact footprint within the XT1 frame group. This breaker is equipped with a fixed thermal-magnetic trip unit (LI) and comes standard with a line side connector and load side lugs. It provides a high interrupting capacity of 100kA at 240VAC and 65kA at 480VAC.
What panelboards and enclosures are compatible with the XT1HU3110AYD000XXX?
This unit mount breaker is designed for integration into ABB ReliaGear neXT panelboards, ReliaGear SB switchboards, and ABB SACE Tmax XT enclosures.
Are the thermal and magnetic trip settings adjustable on this model?
No, this breaker features a fixed thermal and fixed magnetic (LI) trip unit. Both the long-time overload and instantaneous short-circuit thresholds are factory set and cannot be modified in the field.
What does the H in the XT1HU3110AYD000XXX part number indicate?
The H designates the interrupting capacity tier for the ABB Tmax XT1 frame. It indicates a High interrupting rating, which provides 65kA of fault protection at 480VAC.
Can this 3-pole breaker be used in DC electrical systems?
Yes, while primarily used for AC systems up to 600VAC, this breaker is also rated for DC applications up to 250VDC, providing an interrupting capacity of 50kA at that voltage.
Does this breaker plug into a busbar or require bolt-on mounting?
The XT1HU3110AYD000XXX is a unit mount breaker. It does not plug into a busbar and must be bolted directly to a backpan or mounting plate within the enclosure.
What wire sizes are accepted by the lugs on this XT1 breaker?
The factory-installed lugs accept wire gauges ranging from 10 AWG to 2/0 AWG. When terminating, ensure your conductor material and temperature ratings align with local electrical codes for a 110A circuit.
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