General Electric TJJ436300 is a 3-pole molded‑case circuit breaker rated for 600 V and 300 A, part of GE’s TJJ family (J600 frame) for industrial power distribution. It offers a 30 kA short-circuit current rating at 480 V (AIC) and uses a thermal‑magnetic trip mechanism for reliable overcurrent protection in three‑phase systems. This bolt‑on frame model is supplied with load‑side lug terminals and features a non‑interchangeable trip unit. Rated for operation in 40°C ambient conditions, it provides solid protection for feeders and branch circuits in commercial or industrial switchgear.
