Square D PowerPact BJA36040N is a 40 A, three‑pole molded‑case circuit breaker (MCCB) in the PowerPact B family. It is rated for 600Y/347 VAC (600 V line‑to‑line, 347 V line‑to‑neutral) and delivers a short‑circuit interrupting capacity of 25 kA, with thermal‑magnetic trip protection and I‑Line terminals for straightforward panel integration. This MCCB protects feeders and motors in three‑phase electrical distributions typically found in commercial and industrial panels, offering compact, reliable overcurrent protection within the PowerPact B frame for equipment protection and safe system operation.
