Read that the M250 do not need to be grounded with grounding lugs and ground wire to the racking, what if they are grounded as M215s are.
638241
I would strongly suggest everything be grounded to protect against electrical storms.
638242
M250 do not need to have a bare copper wire connected to them now. You can if you want but not necessary. You will still need to ground all rack rails with copper wire (# 6 wire) and use a WEEB washers under all solar panel clamp points to ground solar panels to racks. Larry
638243
The M250 (and new M215IG) do not need a star washer or other grounding wire. It is internally grounded now and meets all code. Adding additional grounding is just an added cost but will not hurt anything. ML SOLAR
638244
I believe it depends on the version. The newer model does not need it? Check their web site. Its always best to ground everything though.
638245
The M250 don't have a grounding clamp on them like the m215 but I used the WEEB when I mounted the m250 to the rails just for extra safety.
638246
You would still want to use a star washer to penetrate the anodized aluminum exterior of both surfaces for bonding between the microinverter and rail. Check with your local AHJ however, since some have not yet approved the integrated ground feature. Grounding the M250 as you would have the M215 (3rd gen) would be going above and beyond the requirements of most jurisdictions.
629079
they are grounded thru the lamp mounting bolt... if not mounted to a solid metal part of the vehicle, you must run a ground wire (attached to the mounting bolt using a wire lug) to a metal part of the vehicle.Pete
454242
Hmm, that's a new one on me - is one of them a chassis ground? I would just figure out which the ground and neutral were and tie them together...
1340501
To answer your question assuming the negative buss bar has screws you can use ring connectors to attach the ground to the buss bar. Make sure the buss bar has continuity between all the metal plates or it will not work.
1529552
You may not need it, look at the directions and it specifically states which models need the ground wire, only a couple of them do. The other ones do not. To find out, just hook it up without the ground wire and see if it works :)
2040588
The pictures do show it "right side up", grounding lugs should be at top for verticle installations. For horizontal installations, the neutral side of the outlet should be up. Don't remember for sure, but I think that this is a "recommendation" in the electrical code not a requirement. The norm has become to mount it with the ground lug down even though this is not the safe way to do it.
2028669
Yes, the M250 will start injecting power to the grid as soon as connected, but you cannot "see" how much power is being generated unless you have the envoy.
1172618
It should ground with the strap but there is a red hot and black ground wire encase!!
1688346
It is always recommended to ground the unit, the gen. has a ground lug, ground wire and rod not included
732131
Yes, grounding will be necessary. If you have any other questions please do not hesitate to contact us.
193081
I would ground it if you can. It probably won't hurt to leave it floating, but generally a grounded enclosure will offer more noise protection and safety.
1258151
Older installations won't have a matching ground wire. The ground wire is for safety, but not strictly necessary. Simply cap it off as you do the other leads and be very careful none of the wrong wires touch each other when you push the box in.
475341
entire generator has a ground terminal, then that grounds the plugs. a rebar pounded into the ground will be enough,
1236797
That is a FABULOUS idea. The only concern would be that they are grounded through the bolts, so you might have to run a separate ground wire connection to your frame if you don't bolt them on. Thanks for a great idea!
1141522
You don't need to ground it. It is power in/power out. You ground what ever you are powering thru the block.
959116
You don't need to ground it if you are planning on using it indoors. However, it should be grounded if used outside.
1688345
It depends... If you're using it for emergency power in your home using a transfer switch the answer is no. While hot and neutral are disconnected, ground is not. Thus, the home electrical box provides a proper ground. If you are using it in a non-transfer switch scenario, then yes, you should consider using an independent earth ground. If you have copper or iron pipes, simply tie the ground of the generator to one of them. They will work fine. If plastic plumbing, then drive a three for four foot galvanized or copper rod into the ground close by and attach to it and you'll be fine. That, or run a ground wire to the frame of your electrical panel if more convenient. It will provide a proper "common" ground. If you're not using it for emergency power in the home, just use GFI protected extension cords. They will reference the electrical ground of the generator. If there is any possibility of making contact with a "hot" wire, the GFI will immediately open and protect from a dangerous shock.