A garage door opener typically requires 3 to 5 amps during operation.
A standard garage door opener motor draws between 3 to 5 amps while operating, with the starting surge potentially reaching up to 15 amps momentarily. The standby power consumption is minimal, usually around 0.5 amps or less. Most residential garage door openers operate on a 120-volt circuit and require a dedicated 15 or 20-amp breaker for safe operation.
Power Requirements by Garage Door Opener Type
| Opener Type | Running Amps | Starting Surge | Typical Horsepower |
|---|---|---|---|
| Chain Drive | 3-4 amps | 10-15 amps | 0.5-1 HP |
| Belt Drive | 3-5 amps | 12-15 amps | 0.5-1 HP |
| Screw Drive | 4-6 amps | 15 amps | 0.75-1.25 HP |
Factors Affecting Amp Draw
- Door Weight: Heavier doors require more power to lift
- Door Balance: Properly balanced doors reduce amp draw
- Opener Age: Older units may draw more current due to wear
- Voltage: Low voltage can cause higher amp draw
Electrical Circuit Requirements
A dedicated 15-amp circuit is the minimum requirement for most garage door openers. For heavy-duty or commercial applications, a 20-amp circuit may be necessary. The circuit should be GFCI-protected if installed in an attached garage or any location where moisture might be present.