Engineered for commercial power distribution, the Siemens FXD62B175L brings 2-pole, 175A capabilities to the proven FD frame lineup. Unlike the standard FXD62B175, this model comes complete with factory-installed line and load lugs accepting 6 AWG to 350 kcmil wire. It offers a 35 kAIC rating at 480VAC and features fixed thermal and adjustable magnetic trip functions. The breaker mounts into Siemens P1, P2, and P3 panelboards, Sentron enclosures, and motor control centers.
What does the L suffix in the FXD62B175L catalog number indicate?
The L signifies that the breaker includes factory-installed line and load lugs. The provided lugs are rated to accept 6 AWG to 350 kcmil copper or aluminum conductors.
Which Siemens panelboards accept this FD frame breaker?
The FXD62B175L is compatible with Siemens P1, P2, and P3 panelboards. It can also be installed in Sentron switchboards, motor control centers, and standalone Sentron enclosures.
How is the trip unit configured on the FXD62B175L?
This breaker uses a thermal-magnetic trip unit. It provides fixed thermal protection for long-time overloads and features an adjustable magnetic dial on the front for instantaneous short-circuit protection.
How is a unit mount breaker installed compared to a standard branch breaker?
The FXD62B175L is a unit mount, feed-thru breaker. It bolts directly to a backpan or mounting plate and uses cables for both line and load connections, rather than plugging into or bolting directly to a panelboard busbar.
Can this breaker replace legacy I-T-E FD frame breakers?
Yes, Siemens Sentron FXD6 breakers are direct replacements for older I-T-E and Siemens-Allis FD6 and FXD6 frame circuit breakers, provided the amperage, voltage, and pole requirements match your specific application.
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