Engineered for heavy-duty applications, the Siemens FXD62B150 provides robust overcurrent and short-circuit protection. This 2-pole, 150A breaker is part of the Sentron FD frame family, featuring a fixed thermal and adjustable magnetic trip unit (LI). Rated for 35kA at 480VAC, it is designed for unit mounting in Siemens P1, P2, and P3 panelboards or standalone enclosures. Note that this model requires the separate purchase of TA1FD350A lug kits for installation.
What panelboards are compatible with the Siemens FXD62B150?
This breaker is designed for use in Siemens Sentron panelboards (Types P1, P2, and P3), as well as compatible switchboards and enclosures.
What lug kit is standard for the FXD62B150 circuit breaker?
The standard lug kit for this FD-frame breaker is the TA1FD350A, which accepts 6 AWG to 350 kcmil copper or 4 AWG to 350 kcmil aluminum wire.
What is the adjustable magnetic trip range for the FXD62B150?
The FXD62B150 features a fixed thermal and adjustable magnetic trip unit with a magnetic trip range of 800A to 1500A.
Can the Siemens FXD62B150 be reverse fed?
Yes, Siemens FXD6 thermal-magnetic circuit breakers are reverse-feed rated, allowing them to be wired with the line connections on either the top or bottom terminals.
How should the FXD62B150 be wired for 250VDC applications?
For 250VDC systems, this 2-pole breaker is typically wired with one pole on each leg of the DC supply circuit. It provides a 30kAIC interrupting rating at 250VDC.
Will the FXD62B150 replace older I-T-E FD-frame breakers?
Yes, Siemens Sentron FD-frame breakers are direct replacements for legacy I-T-E FD-frame circuit breakers with matching specifications.
Does the FXD62B150 provide ground fault or arc fault protection?
No, this is a standard thermal-magnetic circuit breaker with long-time and instantaneous (LI) trip functions. It does not provide GFCI or AFCI protection.
Can this 2-pole breaker be installed in a 3-phase panelboard?
Yes, a 2-pole breaker can be installed in a 3-phase panel to supply single-phase loads, provided the panelboard accepts FD-frame breakers. It will connect to two of the three phases.
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