Built for commercial and industrial applications, the ABB XT1HU3030AFA000XXX is a 3-pole, 30A unit mount molded case circuit breaker. It features a fixed thermal-magnetic trip unit providing reliable long-time and instantaneous (LI) protection. This XT1 frame installs into ABB SACE Tmax XT panelboards and switchboards, serving as an exact replacement for legacy Tmax T1 series breakers. Line and load lugs are not included. Rated for high interrupting capacity, it delivers 65kAIC at 480VAC.
Shunt Trip, Auxiliary Switch, Undervoltage Release, Motor Operator, Padlock Attachment
Accessories
Lugs Not Included, Mounting Hardware, Phase Barriers
Standards
CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval
CE, CSA, cULus, IEC, UL
Temp Rating
-25C to 70C
Construction Features
HACR Rated, Current Limiting, Reverse Feed, Double Insulated
Product FAQs
5 answers
What wire sizes and materials are compatible with the factory lugs on the XT1HU3030AFA000XXX?
The standard box lugs accept 14 AWG through 1/0 AWG copper (Cu) conductors. Aluminum wire is not supported with this specific factory terminal configuration.
Can the XT1HU3030AFA000XXX be utilized in direct current systems?
Yes, this breaker is rated for DC applications up to 250VDC, providing a 50kA interrupting capacity for DC circuits.
Which panelboards are designed to accept this XT1 frame breaker?
This unit mount breaker is designed for installation in ABB SACE Tmax XT panelboards and compatible switchboards. It secures directly to the backpan rather than plugging onto a bus.
Are the thermal and magnetic trip settings adjustable on this model?
No, this specific XT1 breaker features a fixed thermal and fixed magnetic trip unit. Neither the long-time overload nor the instantaneous short-circuit thresholds can be adjusted in the field.
What does the H in the XT1HU3030AFA000XXX part number indicate?
The H designates the interrupting rating tier for the ABB Tmax XT1 frame. It indicates a High interrupting capacity, which provides 65kA at 480VAC.
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