Schneider Electric's PowerPact BDA34020YSA is a 3-pole, 20A circuit breaker rated for 480Y/277VAC three‑phase service. Installed in the PowerPact B frame with I-Line terminals, this thermal-magnetic unit delivers reliable overcurrent protection with an 18 kA interrupt rating at 480Y/277VAC. Designed for commercial and industrial panel applications, it protects feeders and equipment in Schneider Electric’s PowerPact B family and is compatible with I-Line bus systems.
