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ABB XT5NU330ABYN000XXX Molded Case Circuit Breaker

  • 300A
  • 3 Pole
  • Unit Mount
ABB XT5NU330ABYN000XXX
Molded Case Circuit Breaker
Brand ABB
SKU XT5NU330ABYN000XXX
Select Item Condition
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  • 300A
  • 3 Pole
  • Unit Mount

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ABB XT5NU330ABYN000XXX - 300A 3 Pole Molded Case Circuit Breaker

Re-Certified

$1,495.00 Check Stock

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Description

Designed for versatile power management, the XT5NU330ABYN000XXX is a 3-pole, 300A molded case circuit breaker. It belongs to the SACE Tmax XT5N family, offering reliable operation for commercial, industrial, and marine applications. This unit-mount breaker installs into ABB ReliaGear neXT panelboards, SB switchboards, and Tmax XT enclosures. With the appropriate retrofit kit, it serves as an upgrade path for discontinued Tmax T5 and Spectra Series breakers, providing precise LI protection.

Specifications

Key specifications
Brand ABB
Series XT5
Amperage 300A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600Y/347VAC, 600VDC
Phase 3
AIC Rating 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 16kA @ 600VDC
Electrical ratings
Amperage Range 210-300A
Fit and installation
Frame Type XT5N
Terminal Type Lugs
For Use With ABB ReliaGear neXT Panelboards, ABB ReliaGear SB Switchboards, ABB SACE Tmax XT Enclosures
Wire Gauge 2x 2/0 AWG - 500 kcmil
Max Wire 500 kcmil
Min Wire 2/0 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Adjustable Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator
Accessories None (Standard Configuration)
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval CCC, CSA, cULus, HACR, IEC, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Reverse Feed

Product FAQs

5 answers
What equipment is compatible with the XT5NU330ABYN000XXX breaker?

This unit mount breaker is designed for installation in ABB ReliaGear neXT Panelboards, ABB ReliaGear SB Switchboards, and ABB SACE Tmax XT Enclosures.

What does the N in the XT5N frame designation signify?

The N denotes the Normal interrupting capacity tier within the ABB SACE Tmax XT5 family, which provides a 35kA interrupting rating at 480VAC.

How does the adjustable thermal magnetic trip unit function on this model?

The LI (Long-Time, Instantaneous) trip unit allows users to independently adjust both the thermal overload threshold and the magnetic short-circuit pickup to coordinate with specific system requirements.

What wire size range do the factory lugs accept?

The standard lugs on this breaker accommodate two conductors per phase, accepting wire sizes ranging from 2/0 AWG to 500 kcmil.

Can this thermal magnetic breaker be used in DC circuits?

Yes, unlike breakers with standard electronic trip units, this thermal magnetic model is rated for DC applications up to 600VDC with a 16kA interrupting capacity.

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