ABB / General Electric SFHA24AT0250 Molded Case Circuit Breaker

This breaker frame requires an interchangeable rating plug to establish its continuous long-time current rating. It accepts GE SRPF series rating plugs. You can use the SRPF250A250 for a full 250A rating, or install a lower amperage plug like the SRPF250A150 to limit the continuous load to 150A.

The electronic trip unit provides Long-Time, Short-Time, and Instantaneous (LSI) protection. The long-time continuous current is set by installing the required SRPF rating plug, while the short-time delay and instantaneous pickup levels are configured directly on the trip unit face to coordinate with downstream devices.

Both are 2-pole, 250A frame Spectra RMS circuit breakers, but they differ in their short-circuit interrupting capacity. The SFHA model has an interrupting rating of 35kA at 480V, whereas the SFLA model provides a higher 65kA interrupting rating at 480V.

Yes, GE Spectra RMS SF250 frame circuit breakers are rated for reverse feed applications. Always confirm that your specific panelboard layout and local codes permit reverse feeding before finalizing the installation.

The Spectra RMS trip system uses digital sampling to determine the true RMS value of electrical currents. This ensures accurate overcurrent protection and prevents nuisance tripping in environments with non-sinusoidal currents or high harmonics, such as facilities with variable frequency drives or extensive discharge lighting.

No. SRPG rating plugs are physically sized and calibrated for the 400A and 600A SG600 frame breakers. For the SFHA24AT0250, you must exclusively use an SRPF series rating plug designed for the SF250 breaker frame.