Schneider Electric's Square D PowerPact BJA36125U is a 125 A, 3‑pole molded‑case circuit breaker of the BJA (PowerPact B) family, configured for 600Y/347 VAC three‑phase systems. It employs I‑Line plug‑in mounting with ABC phase connection and a thermal‑magnetic trip with a non‑interchangeable trip unit. Load‑side wiring is via mechanical lug terminals; this unit is part of the BJA line, suitable for upstream protection in industrial and commercial distribution panels.
