The LiftMaster K-N7GH5023M E-BOX (also referenced as N7GH5023M) is a genuine OEM electrical control box assembly designed for select LiftMaster GH series commercial door operators. It replaces the original factory control enclosure and internal electronics interface, providing protected housing and proper connection points for motor controls, logic circuits, and field wiring. As a direct replacement part, it is intended for restoring reliable operation on compatible GH operators used on industrial sectional doors, rolling steel doors, grilles, and similar commercial applications, while supporting standard LiftMaster accessories such as monitored photo-eyes, radio receivers, key stations, and wall controls.
Use this E-BOX when the existing control box is damaged or non-functional and you need an exact-match component identified by the operator’s model/part code N7GH5023M. For correct application, verify compatibility against the operator’s ID label and the LiftMaster parts manual for your exact configuration. Installation should be performed by a qualified commercial door technician following LiftMaster wiring diagrams and local electrical codes; disconnect power before service, re-terminate field leads as labeled, and confirm all safety devices operate per UL 325 requirements. After installation, test open/close functions, limits, entrapment protection, and accessory inputs. The E-BOX matches the electrical rating of the host operator; it does not alter the operator’s voltage, phase, or frequency as specified on the operator nameplate.