Part of the Sentron series, this 200-amp JD-frame breaker delivers robust high-interrupting capacity for industrial power distribution. The thermal-magnetic trip unit provides fixed long-time and adjustable instantaneous (LI) protection functions to accommodate specific load requirements. Designed for unit mount configurations, it installs into Siemens enclosures and switchboards. The assembly comes complete with TA2J6500 line and load lugs, accepting 3/0 AWG to 500 kcmil conductors.
What types of equipment are compatible with the HJXD63B200L?
This JD-frame breaker is designed for installation in Siemens individual enclosures, panelboards, and switchboards that accept Sentron series unit-mount breakers.
What frame size is the HJXD63B200L, and why does it matter?
This is a 400A-max JD frame breaker, though it is factory-calibrated with a 200A trip unit. It shares the same physical footprint and mounting dimensions as other JD and JXD6 frame breakers, allowing for straightforward direct replacement in existing Sentron panelboards.
Does the HJXD63B200L include lugs, and what wire sizes are supported?
Yes, this breaker includes line and load lugs. It is equipped to accept two 3/0 AWG to 500 kcmil copper or aluminum conductors per phase, making it suitable for parallel conductor runs.
How is the HJXD63B200L mounted in a panel?
This is a unit-mount, feed-thru circuit breaker. It is designed to be bolted directly to the mounting pan or chassis of a switchboard or enclosure using mounting hardware, rather than plugging onto a busbar.
How does the trip unit function on the HJXD63B200L?
It features a thermal-magnetic trip unit with fixed long-time (thermal) and adjustable instantaneous (magnetic) protection. The adjustable magnetic dial allows electricians to fine-tune the short-circuit response to coordinate with specific load requirements.
Can the HJXD63B200L be used in DC power systems?
Yes, in addition to AC ratings, this breaker is rated for DC applications up to 500VDC. It provides a maximum interrupting capacity of 25kAIC at 500VDC.
What does the "H" in the HJXD63B200L catalog number signify?
The "H" designates this as the high-interrupting version of the standard JXD6 frame. This provides elevated fault protection, delivering 65kAIC at 480VAC and 35kAIC at 600VAC for demanding industrial systems.
Is the Siemens HJXD63B200L suitable for reverse-feed applications?
Yes, this thermal-magnetic Sentron breaker features a reverse-feed design. It can be safely back-fed for applications that require power to be supplied from the load terminals.
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