Siemens 3RF1433-0JC04 Industrial Control Contactor

Siemens 3RF1433-0JC04 is an industrial control contactor engineered to switch moderate to heavy electrical loads in automation and machine control panels. It carries a maximum load current rating of 30 A and uses a 24 V DC coil, enabling reliable remote energization from standard DC control circuits. As a Siemens part, the 3RF1433-0JC04 is intended for applications where a solid, electromechanical switch is needed to control devices such as motors, heaters, or other inductive loads in factory environments. The DC-controlled coil allows precise on/off control from low-voltage control logic, while the contactor’s mechanical contacts provide physical isolation and robust switching performance for repeated cycles. This part is selected when the control system requires a dedicated, plug-in style device with a clearly defined current rating and coil voltage, and when compatibility with Siemens wiring and mounting practices is important. To ensure proper fit, verify that the controlled load current does not exceed 30 A and that the control signal is 24 V DC, matching the coil specification of this exact model.