Operating at 30 amps, the FAB36030 is a 3-pole molded case circuit breaker from the Square D F-frame family. It provides essential long-time and instantaneous trip functions, ensuring reliable thermal-magnetic protection for commercial systems. This unit is built to mount into Square D I-Line panelboards using a secure bolt-on connection. It is an ideal maintenance replacement for older FA36030 breakers. Rated for 18kAIC at 480VAC, it handles high-fault currents safely and is HACR certified.
What panelboards are compatible with the Square D FAB36030 circuit breaker?
The FAB36030 is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line plug-on connection to the busbar, secured by a bolt-on mounting bracket.
How does the FAB36030 connect to the panelboard?
This breaker utilizes an I-Line plug-on connection for the line side, which engages directly with the panelboard bus. A bolt-on bracket secures the breaker physically to the panel interior, while the load side features mechanical lugs for wire termination.
What type of trip unit is installed in the FAB36030?
The breaker is equipped with a fixed thermal-magnetic trip unit. It provides non-adjustable long-time (thermal) protection for overloads and instantaneous (magnetic) protection for short circuits, designated by the LI trip function code.
What wire sizes are compatible with the load-side lugs on the FAB36030?
The factory-installed mechanical lugs accept aluminum or copper conductors ranging from 14 AWG to 4 AWG.
Is the legacy FAB36030 F-Frame breaker still in production?
No, Schneider Electric has discontinued the legacy F-Frame series. For modern replacements or panel upgrades, facilities typically transition to the newer PowerPact B-Frame (such as the BDA36030) or PowerPact H-Frame I-Line circuit breakers.
Can the FAB36030 be utilized in DC power applications?
Yes, alongside its standard AC ratings up to 600VAC, this breaker is rated for 250VDC systems, providing a 10kA interrupting capacity for direct current applications.
Is the FAB36030 suitable for HVAC applications?
Yes, this F-Frame circuit breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific certification.
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