Built to handle heavy electrical loads, this 600-amp circuit breaker delivers exceptional 100kAIC short-circuit protection at 480VAC. The SACE Tmax XT5 series combines compact dimensions with powerful current-limiting capabilities. Contractors can install this unit into ABB ReliaGear neXT panelboards or use it to modernize aging infrastructure. With a retrofit kit, it replaces discontinued Spectra Series components. Factory-installed lugs accommodate dual 2/0 AWG to 500 kcmil conductors.
Which panelboards and switchboards are compatible with the XT5LU360BBFN000XXX?
This breaker is designed for use in ABB ReliaGear neXT panelboards, ABB ReliaGear SB switchboards, and ABB SACE Tmax XT enclosures.
Can the ABB XT5LU360BBFN000XXX replace older GE Spectra series breakers?
Yes, the ABB Tmax XT5 series is the direct replacement for the retired GE Spectra RMS SG600 frame. ABB offers specific retrofit kits to install XT5 breakers into existing Spectra plug-in panelboards and switchboards.
What does the "L" in the XT5L frame designation indicate?
The "L" designates an Extra High interrupting capacity. For this 600A breaker, it provides an interrupting rating of 100kA at 480VAC and 200kA at 240VAC.
How does the adjustable thermal-magnetic trip unit function on this breaker?
The thermal-magnetic trip unit features adjustable dials on the front of the breaker, allowing you to independently set the long-time thermal overload protection and the instantaneous magnetic short-circuit protection thresholds.
Is the XT5LU360BBFN000XXX suitable for continuous operation at 100% of its rating?
Yes, fixed XT5L 600A breakers are suitable for continuous operation at 100% of their rating when installed with 90 degree Celsius rated wire. The wire size must be based on the ampacity of 75 degree Celsius rated wire.
What wire sizes do the standard lugs on this breaker accept?
The factory-installed lugs accept two conductors sized from 2/0 AWG to 500 kcmil per phase.
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