The Nice Apollo 636US control board is a replacement control board for select older Apollo non-ETL gate operator systems. The board handles operator inputs, accessory connections, auto-close timing, reverse sensitivity, and gate-control logic in compatible Apollo systems. Many older Apollo operators used 633, 634, 635, and 636 board variations over time, so the suffix and system layout matter. The 636US version is commonly listed for single or dual gate applications and includes a limit bypass plug. Because it is a non-ETL board, it should be used only where appropriate for the existing system and should not be promoted as a current monitored-safety upgrade. Any gate with unsafe movement, missing photo eyes, or outdated wiring should be reviewed by a qualified technician.
Commonly associated with the following applications when confirmed by the Apollo/Nice parts diagram and the installed operator configuration:
| Manufacturer | Nice Apollo |
|---|---|
| Product Type | Control board |
| Part Number | 636US |
| Application | Older Apollo non-ETL control box systems |
| Gate Configuration | Single or dual applications where supported |
| Safety Listing | Non-ETL |
| Included / Related Component | Limit bypass plug, commonly referenced as 71050014 |
| Notes | Verify board number, suffix, terminals, limits, and actuator configuration |
Control board replacement can expose existing wiring or safety issues. Do not bypass safety devices. A qualified gate technician should inspect outdated or non-ETL systems before returning the gate to service.
Disconnect power and battery before replacing a control board. Do not work on energized gate controls, and do not bypass monitored or required safety devices.
The 636US is commonly referenced as replacing older Apollo 633, 634, 635, and earlier 636 board versions, including Apollo 634 control board references.
The 636US is listed for single or dual non-ETL Apollo applications and includes a limit bypass plug.
The limit bypass plug is commonly referenced as part number 71050014 and is included/pre-installed on some 636US board listings.
No. This is a non-ETL board. It should not be used to avoid current safety requirements or monitored safety-device obligations.
636 style boards are commonly associated with older Apollo 1500 and 1600 non-ETL swing gate operator systems, with exact compatibility depending on actuator, limits, and control-box wiring.