BDA34125SA

The BDA34125SA is a 3-pole thermal-magnetic molded case circuit breaker from Schneider Electric’s Square D PowerPact B-Frame series, factory-equipped with a 110 to 130 volt AC shunt trip for remote or automatic disconnection. Like a standard B-Frame breaker, it provides overload and short-circuit protection in a compact package, but the added shunt trip allows the breaker to be tripped open from an external control signal, independent of the circuit’s actual current. Rated for at 480, it is built for I-Line panelboards and switchboards in industrial and commercial installations. Electrically, the BDA34125SA combines a thermal-magnetic trip mechanism with an internal shunt trip coil, which trips the breaker whenever its control voltage rises above 70 percent of the rated coil voltage. When the coil is energized by an external circuit, such as a fire alarm panel, emergency power off system, or interlock relay, it opens the breaker regardless of load conditions. The breaker carries an interrupting capacity of 18kA, with dual-break rotating contacts that reduce the peak current passing through during a short circuit fault. Mechanically, the BDA34125SA uses an I-Line plug-on connection on the line side, so it mounts directly to the panelboard bus without separate line-side wiring, and mechanical lugs on the load side for conductor termination. It is 80 percent rated for continuous loads and includes an integral push-to-trip button in the cover for manual testing. UL listed and certified to CSA, NOM, and IEC standards, the BDA34125SA is a practical choice anywhere code or system design calls for remote circuit disconnection, such as elevator shutdown, HVAC equipment disconnects, or emergency power off applications. Purchase the BDA34125SA at Electrical.com, your reliable partner for industrial and commercial electrical products. Our selection includes trusted circuit breakers from manufacturers like Square D, Schneider Electric, Siemens, Eaton, and Cutler-Hammer, backed by a knowledgeable sales team ready to assist with technical questions, product selection, and support.