Part of the SACE Tmax XT family, the ABB XT1NU3035AFD000XXX is a 3-pole, 35A molded case circuit breaker engineered for commercial and industrial applications requiring precise LI protection. Designed for unit mounting, this MCCB integrates into ABB SACE Tmax XT panelboards and switchboards. It is an ideal substitute for older Tmax T1 series breakers, maintaining system continuity. This 50kAIC rated breaker features a double-insulated, current-limiting design. Lugs are not included.
Shunt Trip, Auxiliary Switch, Undervoltage Release, Motor Operator, Padlock Attachment
Accessories
Lugs Not Included, Mounting Hardware, Phase Barriers
Standards
CSA C22.2 No. 5, HACR, IEC 60947-2, UL 489
Approval
CCC, CE, CSA, cULus, IEC, KEMA, RINA, RoHS, UL
Temp Rating
-25C to 70C
Construction Features
HACR Rated, Current Limiting, Reverse Feed, Double Insulated
Product FAQs
8 answers
What type of panelboards are compatible with the XT1NU3035AFD000XXX?
This unit mounts directly into ABB SACE Tmax XT panelboards and compatible switchboards designed for XT1 frames.
What wire gauge range do the factory lugs on this breaker accept?
The standard lugs accommodate copper or aluminum wire sizes from 10 AWG up to 2/0 AWG. Ensure proper torque specifications are followed during installation.
What does the U in the XT1NU part number signify?
The U indicates that this breaker is UL rated for standard 80 percent continuous load applications, meeting UL 489 standards for molded case circuit breakers.
What does the N in the XT1N frame designation mean?
The N denotes a Normal interrupting capacity tier within the ABB SACE Tmax XT family, which for this UL model provides 25kA at 480VAC.
Does this breaker feature an adjustable trip unit?
No, this model features a fixed thermal and fixed magnetic (TMF) trip unit. The trip settings cannot be adjusted in the field.
Is this breaker rated for direct current (DC) systems?
Yes, it is rated for DC applications, providing up to 35kA interrupting capacity at both 250VDC and 500VDC.
Is this breaker part of the GE or ABB product line?
It is part of the ABB SACE Tmax XT family. Following ABB's acquisition of GE Industrial Solutions, many GE panelboards and switchboards now utilize these ABB Tmax XT breakers.
What type of protection functions does the LI trip unit provide?
The LI designation means it provides Long-Time (L) protection against overloads and Instantaneous (I) protection against short circuits.
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