Square D FA34015 I-Line 3-Pole Circuit Breaker

Square D FA34015 I-Line 3-Pole Circuit Breaker is a 15-amp, 480-volt molded‑case protective device from Schneider Electric’s FA I-Line family. This three‑pole, thermally magnetic device is designed for use in 3‑phase circuits within Square D I‑Line panelboards and switchboards, featuring plug‑on mounting for straightforward installation. It carries an 18 kA short‑circuit interrupting rating at 480 V (UL/CSA/NOM listed) and accepts copper or aluminum conductors on both line and load terminals, with compatible sizes of 14–4 AWG Cu or 12–4 AWG Al. The FA34015’s compact FA frame measures roughly 4.5 in wide by 4.13 in deep by 6 in high, enabling fitment in dense distribution equipment while providing reliable overload and short‑circuit protection. This model is suited for 3‑phase feeders requiring precise 15 A protection, with thermal‑magnetic trip characteristics that respond to overloads and short circuits in panels, switchboards, and motor control applications where I‑Line devices are specified.