The LiftMaster K03-15473 Reversing Contactor, 24V is an original OEM control component used to drive the motor in forward and reverse on select LiftMaster commercial and industrial operators. Engineered for 24-volt control circuits, this reversing contactor switches motor leads to change direction and features an interlocked design to prevent opposing contactors from engaging at the same time. It is commonly used as a direct replacement part when servicing LiftMaster commercial door openers and gate operators, restoring reliable open/close operation in high-cycle environments.
This 24V reversing contactor installs inside the operator’s control enclosure and connects to the line, load, and low-voltage control terminals per the wiring schematic provided by LiftMaster. Compatibility depends on matching the part number and coil voltage to your specific operator; verify against the model’s parts diagram (e.g., Logic control systems that specify a 24V contactor). For safety and proper operation, replacement should be performed by a qualified technician with power locked out, and post-install testing should confirm correct open, close, and stop functions as well as limit settings. Use only on equipment designed for 24V control circuits; it is not interchangeable with contactors using other coil voltages.