Square D FH36080 Molded Case Circuit Breaker

This F-frame breaker is engineered specifically for Square D I-Line panelboards and switchboards. It uses a specialized blow-on plug-on connection that mounts directly to the panel bus, gripping tighter during high fault currents for a secure phase connection.

The FH36080 provides a high interrupting rating compared to standard FA breakers. It delivers 25kAIC at 480VAC and 65kAIC at 240VAC, making it suitable for commercial and industrial power distribution systems that require elevated fault current protection.

The line side features a plug-on jaw connection that mounts directly to the internal panel bus. The load side comes equipped with factory-installed mechanical lugs that accept 14 to 1/0 AWG copper or 12 to 1/0 AWG aluminum wire.

Yes. Because they share the exact same physical footprint and legacy F-frame dimensions, the FH36080 will plug into the same I-Line space as a standard FA36080. The FH model simply upgrades the circuit to a higher interrupting capacity.

Schneider Electric discontinued the legacy F-frame series in November 2020. Facilities upgrading their I-Line panels typically transition to the PowerPact B-frame series, specifically the BGA36080, for a modern equivalent in 80-amp applications.

It utilizes a non-interchangeable thermal-magnetic trip unit. The bimetal strip handles long-time overload protection by bending as it heats up, while the electromagnetic assembly provides instantaneous protection against short circuits.

No. This molded case circuit breaker features fixed thermal and magnetic trip elements. It is factory-calibrated for an ambient operating temperature of 40 degrees Celsius and cannot be modified by the installer.

Yes. In addition to alternating current applications up to 600VAC, this thermal-magnetic breaker is rated for 250VDC systems, providing up to 10kAIC interrupting capacity for industrial direct current power distribution.