Does this thing need to be grounded? Also, the ah setting, is that the 20 amp hour rate?
854393
Under the National Electrical Code , yes it should be grounded but the N.E.C. Does not come into play for off grid systems that are not connected to Utility Power AND all voltages are under 80 volts D.C. Yes the ah. Rating is for the 20 hour rate for automotive and deep cycle Batteries
693806
yes you really should ground the system otherwise you will have a floating neutral situation which is not very good for most power sensitive appliances etc.
1067296
We haven't been able to install this yet, so I can't comment. The house we are temporarily in does not have grounded switches.
1400670
It's a three prong plug, so if concerned about safety; yes it needs a ground (three prong outlet). As far as dedicated circuit, its powerful, but not like an big industrial motor, so dedicated circuit is not needed.
142504
This timer is in our front hall and turns on the outdoor low volt lights and one standard volt light pole with 60 watt bulb. IT DOES NOT NEED TO BE GROUNDED. This timer has two wires: one red and one black. Just wire the black to black and the red to red. We reset it several times a year for long and short days. It is quite reliable.
609095
I think you two didn't understand the question, I think he's asking what is the /20hr mean, it means that if you ran just under 1 amp you could run it for 20 hrs, while the other ones dont tell you the hr rate of the ah rating...
991616
As long as the mat is plugged into the ground outlet or attached to the metal of the power supply which is plugged in but turned off, you should be ready to go. The only way it wouldn't be grounded is if the mat was not connected to the outlet in some way. By the way, don't forget to get an anti static wrist band or else you can still damage your equipment
272940
Yes, this unit will only work when it's grounded. Always follow the manufactures instructions when wiring.
732131
Yes, grounding will be necessary. If you have any other questions please do not hesitate to contact us.
2010408
I did return this model and bought the previous model with the knob on top. This model did not seem to have an accurate temp reading. (Could have just been that particular heater.) I do love the previous model of this, but the previous model does not have a grounded outlet. I believe they are both UL listed. Unsure of the plug on the item you are inquiring about...
307970
Maybe I'm missing the question but you only should have Neutral, Ground and Hot coming into a plug anyway. But yes, I've got it on the beginning of a run for my home theatre center so I can both track the power consumption of the "entertainment system" in my living room and also with the ability to shut it off when needed from remote. Works good. 14 g wire is the highest it will work with though, so if you are on a 20 amp circuit or an overbuilt 15 amp then you will need to do some creative wire nutting.
921816
The tag on it says 30W dc 12v 2.5A and the rates timer says 20 minutes. Is that all you needed to know?
2156773
the unit is hardwired. you should know what you are doing or hire an electrician. you can connect a power cord and connect it to a plug, I would always recommend using a three wire setup that includes a ground.
1572472
You should ask an electrician why it needs one, but I know it won't work without it being grounded.
652719
Not sure about that as mine is negative ground. That said, it should be ground polarity insensitive by reversing the connections.
1993956
I no longer have that unit. It failed, but I believe it does not have a grounded cord.
450266
Sorry! Still didn't install yet! But I would say it's not grounded or wired properly!