Engineered for heavy-duty industrial applications, this 600A, 3-pole MCCB belongs to the Siemens Sentron LD frame family. It provides reliable thermal-magnetic protection with adjustable magnetic trip settings. The unit-mount breaker installs into Siemens P4 and P5 panelboards or Sentron switchboards. It features a non-interchangeable trip unit and requires separate lug kits for termination. Rated for 65kAIC at 480VAC, this HACR-rated device handles demanding high-fault environments.
High Interrupting Capacity, Non-Interchangeable Trip, HACR Rated
Product FAQs
5 answers
What does the "B" suffix in catalog number HLXD63B600 indicate?
The "B" indicates this is an assembled circuit breaker supplied without lugs. You must source and install the appropriate line and load lugs separately based on your specific wire size and material requirements.
What is the difference between the LXD63B600 and the HLXD63B600?
The "H" designates a high interrupting capacity. The HLXD63B600 is rated for 65kA at 480V, whereas the standard LXD63B600 is rated for 35kA at 480V. Both share the same physical LD frame footprint.
What standard mechanical lug kit is used with this breaker?
The TA2J6500 mechanical lug kit is the standard aluminum body line and load terminal kit for Siemens 250A to 600A LD frame breakers. Each lug accommodates up to two 3/0 AWG to 500 kcmil copper or aluminum conductors.
Are compression lugs available for this breaker?
Yes, you can use the CCL600 compression lug kit. It is designed specifically for Siemens JD and LD frame molded case circuit breakers and accommodates 500 kcmil copper or aluminum conductors.
How do you adjust the trip unit on the HLXD63B600?
The thermal protection is fixed at 600A, but the instantaneous magnetic trip is adjustable via a dial on the face of the breaker. The magnetic trip range can be set between 3000A and 6000A, allowing electricians to fine-tune the short-circuit response to coordinate with downstream devices.
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