Square D BDA34030Y Molded Case Circuit Breaker

This B-frame breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line plug-on connection for the line side busbar and mechanical lugs on the load side.

Yes, PowerPacT B-frame breakers maintain the standard I-Line mounting footprint. This allows them to easily retrofit into existing Square D I-Line panelboards and switchboard distribution sections, provided the voltage and interrupting ratings meet the system requirements.

Yes, the PowerPacT B-frame series is the designated modern replacement for legacy Square D F-frame circuit breakers. It offers a smaller footprint for unit-mount applications while maintaining the same standard dimensions in I-Line applications for straightforward retrofitting.

The BDA34030Y utilizes a shrouded I-Line plug-on jaw on the line side to connect directly to the panelboard bus. The load side features standard mechanical lugs that accept 14 AWG to 2/0 AWG aluminum or copper conductors.

The integral push-to-trip button provides a safe way to manually trip the circuit breaker. This allows electricians to verify that the mechanical tripping mechanism is functioning properly and to manually open the circuit before performing maintenance.

The PowerPacT B-frame series utilizes dual-break rotating contacts. During a short circuit fault, the repelling forces rapidly separate the contacts in two places, extinguishing the fault current before it can fully develop. This significantly reduces peak let-through energy and limits electrical stress on downstream components.

Yes, this PowerPacT breaker supports a variety of field-installable accessories. Electricians can easily add auxiliary switches, shunt trips, undervoltage releases, padlock attachments, and rotary handle mechanisms to customize the breaker for specific control panel needs.

No, the BDA34030Y utilizes a standard thermal-magnetic trip unit with fixed thermal and fixed magnetic settings. It does not include the electronic Micrologic trip units found in larger PowerPacT frames, meaning the trip thresholds cannot be dialed up or down in the field.