USAutomatic 500028 Ranger 500 Control Board Product Details
The USAutomatic 500028 is a replacement logic/control board used in compatible Ranger 500 swing gate operator systems. It is the main electronic control point for motor operation, accessory inputs, gate commands, diagnostic indicators, battery status, and safety-device response. On a working gate, the board coordinates the operator movement and accessory commands; on a failed gate, it is often checked after batteries, charger, actuator wiring, limit setup, and safety inputs have been ruled out.
This board is commonly described for Ranger 500 single and dual swing applications and is associated with UL 325 compliant control requirements. Some sources also reference replacement relationships with older board numbers, but substitution should be made only after comparing the exact original board, operator generation, and required safety devices.
Compatible With
- Select USAutomatic Ranger 500 swing gate operators
- Ranger 500 single swing gate systems when the existing board and wiring match
- Ranger 500 dual swing gate systems when the existing board and harnessing match
- Applications requiring replacement of a compatible Ranger 500 main control board
- Commonly referenced in relation to former USAutomatic board numbers 500500 and 500021; verify before treating as a direct replacement
- Not a confirmed drop-in replacement for Sentry 300 board 500022 or older Sentry 500410/500415 systems without parts verification
Features & Specifications
| Manufacturer | USAutomatic |
| Product Type | Gate operator control board |
| Part Number | 500028 |
| Application | Ranger 500 swing gate operator control |
| Gate Type | Swing gate |
| Gate Setup | Select single or dual systems |
| Safety Standard | UL 325 related control-board application |
| Diagnostics | LED indicators, command inputs, battery/low-battery annunciation, and troubleshooting functions vary by revision |
| Common Replacement Reason | Failed board output, surge damage, water damage, accessory input failure, or diagnostic failure |
| Important Note | Required safety devices must remain installed and functional |
Also Known As / Related Part Numbers
- 500028
- US Automatic 500028
- USAutomatic 500028
- Ranger 500 Control Board
- Ranger Control Board
- Former related numbers 500500 and 500021 - verify replacement relationship before ordering
- Related but not the same as 500022 Sentry control board
Technician Note
Before replacing the board, confirm batteries, charger output, actuator wiring, fuses, accessories, and safety inputs. A board can be damaged again if the original short, water problem, or wiring fault is still present.
Before Ordering Checklist
- Match the original board number and operator model.
- Confirm the system is Ranger 500, not Sentry 300 or Patriot.
- Verify single/dual gate wiring and actuator connections.
- Confirm required monitored safety devices are installed and operational.
- Inspect for water intrusion, insect damage, surge damage, or shorted accessory wiring.
Professional Advisory
Control-board replacement involves electrical wiring and gate safety circuits. If the board has burned components, unsafe movement, or missing protection devices, use a qualified gate technician.
Product Questions & Answers
Will the 500028 work on a Ranger 500 dual gate system?
It may be used on compatible Ranger 500 single or dual systems when the existing board, harnessing, and configuration match.
Does this replace Sentry board 500022?
No. 500028 and 500022 are related USAutomatic control boards but should not be treated as interchangeable without exact model and parts verification.
What older board numbers are related?
Some listings reference 500028 as replacing former Ranger-related numbers 500500 and 500021. Verify the original board and operator generation before ordering.
Do I still need safety devices after replacing the board?
Yes. Required photo eyes, monitored protection, and other safety devices must remain installed and functional.
What causes a replacement board to fail again?
Water intrusion, insects, lightning/surge damage, shorted accessories, bad batteries, incorrect wiring, or an actuator fault can damage a new board.
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