The Siemens HHLXD63B600 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 600 Amps and a voltage rating of 600V. It has an interrupting rating of 100kAIC at 480V. The HHLXD63B600 has a bolt-on connection type and includes long time and instantaneous trip functions.
HACR Rated, Extra High Interrupting Capacity, Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism
Product FAQs
7 answers
What types of panels are compatible with the HHLXD63B600?
This LD frame breaker is designed for use in Siemens P4 and P5 panelboards, Sentron switchboards, and motor control centers.
What does the HH in the HHLXD63B600 part number indicate?
The HH designates it as an extra-high interrupting capacity breaker within the Siemens Sentron series, providing a 100kAIC rating at 480V.
Can I swap the trip unit on the HHLXD63B600 to change its amperage?
No. The HHLXD63B600 features a non-interchangeable thermal-magnetic trip unit, meaning the 600A rating is fixed and cannot be swapped out for a different rating.
How do I adjust the trip settings on this breaker?
The HHLXD63B600 has a fixed thermal setting for long-time overload protection and an adjustable magnetic setting for instantaneous short-circuit protection. The magnetic trip can be adjusted using the dial on the front of the trip unit.
What is the recommended ambient operating temperature for this breaker?
The HHLXD63B600 is calibrated for use in a standard 40 degrees Celsius (104 degrees Fahrenheit) ambient temperature environment.
Does this breaker mount onto a standard DIN rail?
No, the HHLXD63B600 requires a bolt-on connection. It is designed to be bolted directly to the busbars in compatible Siemens panelboards and switchboards.
What type of protection does the LI trip function provide?
The LI designation means the breaker provides Long-Time (thermal) protection against overloads and Instantaneous (magnetic) protection against short circuits.
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