The Marantec 122943 Control Box is an OEM replacement control unit designed for select Marantec automatic gate operators. It restores the system’s logic and motor control functions, enabling normal open/close operation and coordination with safety and access devices. Use this control box only with the specific Marantec models that call for part number 122943 in their parts list or service manual. It is commonly used in residential and light commercial gate opener applications where a damaged or non-responsive control board or enclosure needs to be replaced with a factory-correct component.
This control box provides the central connection point for the operator’s motor wiring, limit and safety circuits, and accessory inputs, supporting integration with typical accessories such as photo eyes, wired controls, and compatible radio receivers as specified by the host operator. Installation should be performed by a qualified technician with power disconnected, following Marantec’s wiring diagram to transfer conductors to the labeled terminals, then completing any required setup and programming procedures for limits and functions as directed in the operator’s manual. For compatibility and electrical ratings, verify the operator documentation and the control box label to ensure the input voltage and accessory wiring match the designated Marantec gate model and comply with applicable safety standards.