Built for commercial and industrial applications, the Siemens FXD62B175 delivers 2-pole, 175A protection within the Sentron FD frame family. It provides fixed thermal and adjustable magnetic (LI) trip functions for robust circuit protection. Rated at 35 kAIC at 480VAC, this unit-mount breaker is HACR rated and suitable for reverse feed applications. It installs into Siemens P1, P2, and P3 panelboards, motor control centers, and Sentron enclosures. Supplied with no lugs installed.
Does the FXD62B175 come with line and load lugs installed?
No, the standard FXD62B175 is supplied without lugs. If you need factory-installed lugs, look for catalog number FXD62B175L. For field installation, the standard lug kit is TA1FD350A, which accepts 6 AWG to 350 kcmil copper or 4 AWG to 350 kcmil aluminum wire.
What is the magnetic trip adjustment range for this 175A breaker?
The FXD62B175 features a fixed thermal and adjustable magnetic trip unit. The instantaneous magnetic trip can be adjusted from 900A to 2000A.
Which Siemens panels and enclosures are compatible with the FXD62B175?
This FD-frame breaker is designed for use in Siemens P1, P2, and P3 panelboards, Sentron switchboards, motor control centers, and Sentron enclosures.
Is the trip unit on the FXD62B175 interchangeable?
No, this breaker features a non-interchangeable thermal-magnetic trip unit. The entire breaker must be replaced if a different trip rating is required.
How does the FXD62B175 differ from the HFD62B175?
Both are 175A, 2-pole FD-frame breakers, but they have different interrupting ratings. The FXD62B175 is the standard-interrupting version rated at 35kAIC at 480V, while the HFD62B175 is the high-interrupting version rated at 65kAIC at 480V.
Can the FXD62B175 be reverse fed?
Yes. Because it features a non-interchangeable trip unit, the FXD62B175 is UL listed for reverse feed applications.
What type of fault protection does the FXD62B175 provide?
It provides thermal-magnetic protection with a Long-Time (L) function for standard overload protection and an Instantaneous (I) function for short-circuit protection.
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