US Automatic 550015 7 Day Timer
The US Automatic 550015 is a programmable 7 day timer used with compatible low-voltage US Automatic gate opener systems. In a typical gate application, the timer can send a scheduled signal to the control board, such as opening the gate at a preset time or holding an input active during a planned access period, depending on how it is wired and how the operator is configured. It is described as solar friendly because low standby current is important on battery-backed and solar-powered gate systems. This part is useful for timed access at business entrances, community access points, ranch gates, and controlled service areas. Correct use depends on the operator model, terminal selection, auto-close setup, safety devices, and how the customer wants the gate to behave after the scheduled event.
Common use cases include replacing a failed timer, adding scheduled open access, restoring a timed hold-open function, or reducing battery drain compared with a higher-current timing accessory.
Compatible With
This timer is commonly associated with compatible US Automatic 12 VDC gate operator accessory inputs. Confirm the manual wiring terminals and desired timer function before ordering.
- US Automatic Patriot swing gate operators with compatible timer/accessory input
- US Automatic Patriot RSL slide gate operators with compatible timer/accessory input
- US Automatic Ranger 500 systems with compatible timer wiring
- US Automatic Ranger HD systems with compatible timer wiring
- US Automatic Sentry 300 systems with compatible timer wiring
- 12 VDC battery or solar-friendly gate systems where low-current timer operation is needed
- Not a safety device, receiver, keypad, or standalone gate controller
Features and Specifications
| Manufacturer | US Automatic |
| Product Type | Programmable 7 day timer |
| Part Number | 550015 |
| Application | Scheduled gate input or timed access control |
| Voltage | 12 VDC system use |
| Power Use | Low-current / solar-friendly design |
| Included Components | Timer; wire not included |
| Compatible Operator Type | Select US Automatic gate operators with compatible input terminals |
| Notes | Programming and wiring depend on operator manual |
Also Known As / Related Part Numbers
The following numbers and phrases are commonly associated with this timer.
- 550015
- US-550015
- USA-550015
- US Automatic 550015
- USAutomatic 550015
- 7 day timer
- solar friendly timer
- 12 VDC gate timer
- programmable gate timer
- Sentry 300 7 day timer
- Patriot 7 day timer
- Ranger 7 day timer
Technician Note
A timer can hold a gate open or trigger an input, but it does not replace the need for proper auto-close settings and monitored safety devices. Always test the full gate sequence after programming.
Before Ordering Checklist
- Confirm the operator has the correct 12 VDC accessory power and input terminals
- Decide whether the timer will momentarily open or hold the gate open
- Confirm auto-close settings and safety devices are working
- Plan wire type and routing since wire is not included
- Verify battery/solar capacity if used on an off-grid installation
Professional Advisory
Timer wiring and programming affect unattended gate operation. If there is any uncertainty about safe operation, control-board terminals, or auto-close behavior, have the system configured by a qualified gate technician.
Important Ordering Warnings
Do not use a timer to defeat required entrapment protection or hold a gate in a way that creates an unsafe access point.
Product Questions and Answers
What does the 550015 timer do?
It provides programmable 7 day scheduled control for compatible US Automatic gate opener inputs, such as timed open or hold-open functions.
Is the 550015 solar friendly?
Yes. It is commonly described as a low-current or solar-friendly timer for 12 VDC systems.
Does the timer include wire?
No. Common listings state that wire is not included.
Can this timer be used on Patriot, Ranger, and Sentry operators?
It is commonly associated with compatible US Automatic Patriot, Patriot RSL, Ranger, Ranger HD, and Sentry systems when the manual supports the wiring.
Can a timer replace a keypad or receiver?
No. A timer is for scheduled control. Keypads, receivers, and access-control devices perform different functions.
