Schneider Electric FA34020 I-Line Circuit Breaker

The Schneider Electric FA34020 I-Line molded-case circuit breaker is a 20A, three-pole protective device in the FA (I-Line) family, designed for 480V three-phase systems and plug-in mounting on an I-Line bus. It employs a thermal-magnetic trip mechanism with ABC phase connections and provides an 18 kA interrupting rating at 480V, enabling reliable fault protection for feeders and distribution circuits in industrial panels. As a 3P, 480V FA-frame MCCB, the FA34020 is intended for use in Schneider Electric’s I-Line installations and is listed for 80% continuous operation, supporting compact, code-compliant protection in electrical rooms and equipment enclosures. This model is commonly paired with other FA-series devices in industrial and commercial power distribution, and its plug-in I-Line mounting simplifies panel assembly while maintaining standard line-side and load-side terminations via the ABC connection configuration.