A 15 amp circut will be fine.
amps equals watts divided by volts.
about 3 or 4
My initial reaction was "absolutely not". The lighting circuit will only have a maximum feed capacity of 3 to 5 amps. For a garage opener this will be more than that. If you did manage to convert it, then you would almost certainly blow the circuit breaker and at the worst you may cause the wiring to set on fire due to overload. Basically, it's all about the maximum current that the opener draws when operating. I'm sure that it would exceed the capacity of the circuit. Additional question...I saw something at Home Depot that screws into a light socket and provides an electrical outlet. Would this work? I did a little research and found garage door openers ranging from 1.6 to 6 amps. Seems a little tight, but could it work?
A pool pump motor which is drawing half the amps listed on its nameplate can indicate a problem with the windings or a lack of incoming current. Pumps will only draw as many amps as are required to operate under the current load.
A 15 amp should be fine, provided that #14 wire is used for the outlet. If #12 is used, then use a 20 amp breaker. Depending on what the motor voltage is makes a difference on what the wire size is. A 3/4 HP motor draws 13.8 amps at 115 volts and 6.9 amps at 230 volts. The motor feeder conductor must have an ampacity at least equal to 125% of the full load current rating of the motor. 13.8 x 125% = 17.25 amps. The conductor required on a motor using 120 volts is #12 rated at 20 amps. The breaker for this motor needs to be rated at 30 amps.
Excessive resistance (drag), will cause motor to draw more amps (current flow) to operate.
Garage door openers do not get "wired." They are sold with a standard 3-prong, 120VAC plug that is about two-feet long and plugs into a 15A, 120VAC outlet -- next to the location where the opener is installed. In the absence of a nearby AC outlet, you will need an extension to power you garage door opener. Well power doesn't get wired the wall mount and sensors do get wired use the directions they will tell you where hook the wires on the back of the opener.
The cold cranking amps that are required to start your Ford 2.5 liter engine is dependent upon the outside temperature. 450 cranking amps are required at a temperature of 32 degrees.
"Cranking Amps" are the amount of amps required for the starter to crank the engine. Automobile batteries are measured in "cold cranking amps." That's the amperage capacity of the battery in cold weather.
You can connect a watt meter to the circuit or it can be done by calculation. By calculation use this formula, Watts = Amps x Volts.
Power equals voltage times current in amps. The value of amps used is needed to do the math.
At 120 volts you can operate any equipment up to 1200 watts. At 240 volts you can operate any equipment up to 2400 watts.