Delivering reliable current-limiting performance, the Square D FCL34060 is a 60A molded case circuit breaker for industrial applications. It features a thermal-magnetic trip unit to protect against overloads and short circuits. The 3-pole unit-mount breaker integrates seamlessly into Square D switchboards and motor control centers. While this legacy F-Frame model is replaced by the HJL36060, it remains essential for maintaining existing systems. It boasts a 65kAIC rating at 480VAC.
HACR Rated, Current Limiting, High Interrupting Capacity, Trip-Free Mechanism, Common Trip
Special Features
Current Limiting
Product FAQs
5 answers
What equipment is the Square D FCL34060 designed to fit?
This unit-mount breaker is compatible with standard Square D enclosures, switchboards, and motor control centers. Because it uses a feed-thru lug configuration, it is not compatible with I-Line plug-on panelboards.
What are the wire size requirements for the FCL34060 lugs?
The factory lugs accommodate 14 AWG to 1/0 AWG copper wire, or 12 AWG to 1/0 AWG aluminum wire. Ensure proper torque specifications are followed during installation.
Is the FCL34060 still manufactured, or is there a direct replacement?
The FCL series is a legacy F-Frame breaker. While it is still sourced for maintaining existing systems, modern Square D applications typically replace it with the PowerPact H-Frame series, such as the HJL36060.
How does the current-limiting feature of the FCL34060 benefit my electrical system?
As a current-limiting breaker, it trips fast enough during a short circuit to significantly reduce the peak let-through current. This minimizes thermal and mechanical stress, offering superior protection for downstream components compared to standard breakers.
Does the FCL34060 provide ground fault or arc fault protection?
No, this breaker features standard thermal magnetic trip elements for overload and short circuit protection. It does not include built-in equipment ground fault or arc fault capabilities.
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