General Electric THED136040BU Circuit Breaker

The GE THED136040BU circuit breaker is a 40 A, 600 V, three-pole protective device from General Electric. Designed for use in electrical distribution panels, it provides overcurrent protection and short-circuit interruption for three-phase circuits. With a 40 amp rating and a maximum voltage of 600 V, this breaker is suitable for protecting feeders and branch circuits in commercial and light industrial power systems that operate on 3-phase power. The three-pole configuration ensures simultaneous disconnection of all live conductors in a 3-phase circuit, helping to prevent partial energization during a fault condition. The THED136040BU designation identifies the GE model and current rating, making it straightforward to match with compatible GE panels and replacement parts. When installed in accordance with electrical codes and panel manufacturer instructions, this unit contributes to safe, reliable power distribution by limiting fault current to protect wiring insulation and connected equipment. Use cases include service panels, motor feeders, and switchgear configurations that require a 3-pole 40 A protective device.