Square D BJA36050 I-Line 3-Pole Circuit Breaker is a PowerPact B-frame molded‑case MCCB designed for three‑phase protection on I‑Line bus systems in industrial panels. Rated 50 A and 600 V AC, this thermal‑magnetic breaker uses a non‑interchangeable trip unit to provide reliable overcurrent protection for three‑phase circuits in demanding electrical environments. The I‑Line mounting supports plug‑in installation into compatible Square D panelboards and switchboards, with load‑side terminals configured for I‑Line deployment in the PowerPact B family. Includes a test report.
