LiftMaster K-MGJ5023 Electrical Box Assembly for MGJ5023 Commercial Operator
The LiftMaster K-MGJ5023 E-Box is a replacement electrical/limit box assembly for select MGJ5023 commercial door operator builds. In the field, the E-Box is one of the most important service areas on a commercial operator because it supports control wiring, electrical terminations, limit system components, and wiring labels needed for safe setup and maintenance.
This part should be treated as a configuration-specific service part. Supplier references connect K-MGJ5023 to MGJ5023 and to a limit box / GT / N7 style hazardous-application reference. That means model, voltage, enclosure classification, and exact parts diagram matter. Do not assume another MGJ E-Box is interchangeable just because the enclosure shape looks similar.
For a parts-counter listing, this product should help customers identify the correct electrical box when the original is tagged MGJ5023 or the LiftMaster replacement diagram calls out K-MGJ5023. If the label shows MGJ5011, MGJ5025L, MGJ5025R, MH, HMJ, or a different NEMA/hazardous-location box, the installer should verify the correct service part before ordering.
Compatible With / Common Applications
- LiftMaster MGJ5023 commercial gear-reduced jackshaft operator applications where K-MGJ5023 is specified
- Select LiftMaster commercial door operator limit box / electrical box service paths tied to MGJ5023
- Hazardous-location or N7 style references only when the operator diagram confirms this box
- Not confirmed for MGJ5011, MGJ5025L, MGJ5025R, K-MH5025L, K-MH5025R, or 10-11420M1 unless the diagram cross-references it
- Not a universal replacement for all LiftMaster commercial door operator E-Boxes
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Electrical box / limit box assembly |
| Part Number | K-MGJ5023 |
| Application | MGJ5023 commercial operator E-Box service |
| Compatible Operator Type | Select gear-reduced jackshaft commercial door operators |
| Configuration Notes | May be associated with GT / N7 hazardous application references; verify by diagram |
| Notes | Match by exact model, voltage, enclosure rating, and wiring diagram |
Also Known As / Related Part Numbers
- K-MGJ5023
- MGJ5023
- LiftMaster MGJ5023 E-Box
- LiftMaster limit box MGJ5023
- GT N7 limit box reference
- LiftMaster electrical box MGJ5023
Technician Note
The K-MGJ5023 row should not be merged with K-MH5025L or 10-11420M1 rows. These electrical boxes can serve different MGJ/MH/HMJ commercial operator builds.
Before Ordering
- Confirm the original E-Box or diagram lists K-MGJ5023
- Confirm the operator model is MGJ5023 or a confirmed cross-reference
- Verify hazardous-location or enclosure requirements if applicable
- Check whether the cover, internal components, or complete box is needed
- Use a qualified technician for wiring transfer and final testing
Professional Advisory
Commercial door operator electrical parts should be installed and tested by a qualified commercial door technician. Disconnect power before service, follow the operator wiring diagram, and do not bypass required safety devices, interlocks, or monitored entrapment protection.
Product Questions & Answers
What is K-MGJ5023?
It is a replacement electrical box / limit box assembly for select LiftMaster MGJ5023 commercial operator applications.
Is this the same as 10-11420M1?
No. 10-11420M1 is another MGJ E-Box reference. Match the exact number on the diagram before ordering.
Can this be used in hazardous applications?
Some supplier references tie this part to N7 / hazardous application use, but the specific operator diagram and location requirements must confirm it.
Does this replace the cover only?
No. This listing is written as an electrical box assembly, not only a cover.
Why is parts-diagram verification important?
Commercial operator electrical boxes can vary by model, voltage, hand, and enclosure rating even when they look similar.
