Schneider Electric BDA34040Y I-Line Circuit Breaker

The Schneider Electric BDA34040Y PowerPact B-Frame I-Line circuit breaker is a 3-pole, 40 A protective device designed for 480Y/277 VAC three-phase systems. Part of the PowerPact B-Frame family, it delivers thermal-magnetic overcurrent protection with an 18 kA interrupting rating at 480Y/277 VAC and is compatible with I-Line panelboard configurations for plug-in mounting. This 40 A breaker safeguards downstream loads in commercial and light industrial distribution systems while fitting into I-Line bus assemblies. The BDA34040Y provides the fixed trip characteristics associated with PowerPact B devices and is designed for robust operation in demanding electrical environments. Typical applications include motor feeders, equipment branches, and distribution circuits within 480 VAC systems, where reliable protection and compact, standardized form are essential.