It says AC or DC, then indicates that it is polarity sensitive. Can I connect4-40VAC without anything else, or do I need ot rectify the AC into DC?
193930
I suspect you can use either AC or DC. However if DC is being used then it's polar sensitive. Perhaps it's on the idea of a universal motor which will run on both AC and DC but if DC is connected backwards the motor will run backwards.
193931
I hooked mine up to 12V DC (boat). You should contact the manufacturer for that info. It's way above my pay grade.
246860
Out of the box it is only 12 volt DC. You need to purchase an adapter to connect to 120 volt AC.
1026574
Not sure off top of my head. Normally I use a voltmeter to check these things. Properly designed circuits will have a blocking diode to prevent polarity reversal issues. Those that don't, may have smoke issues!
1349323
It is a DC output ! But I must have read that it had been a AC output, which was what I wanted. Didn't help me at all
1059200
It is AC, not DC. But you can get an inexpensive power inverter and plug it in that way.
190977
to start with u cant "see" a "3 volt ac current". its either 3 volts or some measure of current across a load, ie milliamps.voltage is volts, not current.the fact that its "ac" more than likely means its just electrical noise.Assuming its a relay contact for the output u should be able to use it as a switch no problems.if it still didn't work you would tie it to probably ground using a 4.7k or higher resistor, then use a 1k or less to pull the signal up.
2142997
Hi, we use it with AC 220 v. current. Cant answer the second question; too technical for me. Perhaps you should ask for technical support at compex usa. For the rest we are very happy with the performance.
1542729
Hi, thanks for asking110V is ok, now , It depends with how many Amps works your AC, if is less than 10 Amps you are ok.
2178981
I never got it to work... Maybe my bad door I ended up replacing. It powers off the garage door connections and I would assume dc.
2219628
Thanks, i'll check for the switch on the back tonight. i'm sure the polarity is correct, red to lead (+) and black to ground (-) right?
50522
I connected using 120 volt power. It was simple - I bought a 16 gauge electric appliance replacement cord from Home Depot and wired it directly into the box. After that, all you have to do is to plug it in!
48850
Should be plugged in directly. Polarity matters. Do not plug one in upside down and the other right side up. I have experienced significant bogging due to this.
349211
Our unit puts out 120 Volt and 240 volt AC current. It does not put out DC at all!
1493683
Roger, there are only two ways to wire it... if it does not read, simply unplug the unit 110 volts and reverse the two wires.
1307892
The AC voltage doesn't matter as you must convert the voltage to DC before connecting this item.
431919
Funny that you asked me this question... I am an Electrician by trade, and I have No Idea about the DC low Voltage on this perticular component..? I just matched it with the other 4 GB Ram memory board that came with the pc... I can take a reading, and get back with you on this, but normally I wire homes dealing with AC Electrical Current...
1510637
No it does not. Go back and check your wiring you might have reversed the polarity.