Belonging to the Sentron family, this 600A molded case circuit breaker delivers reliable LI protection for commercial facilities. The unit features a fixed thermal and adjustable magnetic trip mechanism. Designed for unit mount configurations, it installs into Siemens P4 and P5 panelboards, plus SB1, SB2, and SB3 switchboards. Line and load lugs are included for up to 500 kcmil conductors. With a 65kAIC rating at 480VAC, the HLD6 frame ensures robust fault clearing and carries a HACR rating.
Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator
Accessories
Line and Load Lugs Included
Standards
CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval
CSA, IEC, UL
Temp Rating
40C
Construction Features
HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit
Product FAQs
5 answers
What panelboards and switchboards are compatible with the HLD63B600?
This breaker is designed for use in Siemens Sentron Type P4 and P5 panelboards, as well as SB1, SB2, and SB3 switchboards.
What wire sizes do the standard lugs on the HLD63B600 accept?
The included TA2J6500 lugs accept two 3/0 AWG to 500 kcmil copper conductors or two 4/0 AWG to 500 kcmil aluminum conductors per phase.
Can the Siemens HLD63B600 be reverse fed?
No. Because the HLD63B600 features an interchangeable trip unit, it is marked with LINE and LOAD designations and cannot be reverse fed. For reverse feed applications, a non-interchangeable trip version is required per UL 489 and CSA C22.2 No. 5 standards.
How does the adjustable magnetic trip function on this 600A breaker?
The thermal trip is fixed at 600 amps for overload protection, while the magnetic instantaneous trip can be adjusted to coordinate with downstream devices and prevent nuisance tripping during short-term inrush currents.
Can I use the Siemens HLD63B600 to replace an older I-T-E breaker?
Yes, the Siemens HLD63B600 is a direct replacement for legacy I-T-E HLD63B600 circuit breakers, as they share the same physical dimensions and LD frame design.
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