How Many Amps Does a Garage Door Opener Use?
Garage Door Opener draws about 4.6 amps at 120 volts (550 watts running) and briefly spikes to around 12 amps at startup. At 4.6 A, a garage door opener fits comfortably on a standard 15 A or 20 A household circuit.
Amps = watts ÷ volts. Enter the wattage from your appliance's nameplate or label for an exact figure.
Current draw — a garage door opener
4.6 A
- At 120 V
- 550 W
- Typical breaker
- 15 A
Breaker figure is guidance for a simple resistive load — confirm against the nameplate and a licensed electrician.
Garage Door Opener amperage at 120 V and 240 V
Same 550 W load — the current halves when the voltage doubles. Garage Door Opener is typically a 120 V appliance in US homes.
| Draw | Watts | Amps at 120 V | Amps at 240 V |
|---|---|---|---|
| Running | 550 W | 4.6 A | 2.3 A |
| Starting (surge) | 1,400 W | 12 A | 5.8 A |
The startup surge lasts a fraction of a second — it matters for generator sizing and breaker trip curves, not for your electric bill.
Breaker and circuit for a garage door opener
At 4.6 A, a garage door opener fits comfortably on a standard 15 A or 20 A household circuit. For a dedicated circuit, guidance is a 15 A breaker with 14 AWG copper (75°C terminations).
Guidance only — actual circuit sizing depends on your unit's nameplate, wire run length, and local code. Confirm with a licensed electrician. See the wire & breaker size chart for the full NEC ampacity table.
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