P3030B1100CU 100-Amp 30-Space 30-Circuit Main Breaker Load Center

The biggest difference with this panel and so many others is the accessibility to the neutral and ground bus bars. With width constraints typically dictated by stud spacing (14.5" inches is the typical max without heading out the studs), this panel places the ground and neutral bus bars WHERE THEY SHOULD BE. This is my go to sub-panel. This panel only handles full size breakers, twins and quads will not work in it. The circuit breakers are very reasonably priced. KUDOS to Siemens for getting the bus bars in the best possible location given the constraints. Copper main bus bar while not mandatory is a nice bonus. If you need a sub-panel, this is the only way to go based on my experience. If they were all made like this, trouble shooting problems would be a snap. I always test neutral/ground screws for tightness when in a customers panel. Some panels it is simply not possible without shutting the panel down.Having 30 spaces is nice....lots of ground and neutral screws to utilize. Be sure to order at least one or more of the larger lugs for the feederground. This is the item. Siemens ECCS1 Ground Bar Lug Kit #14-1/0, they also have an even larger lug for larger wire. This one will take up to ground screws. I also use the Siemens ECSBPK04 Generator Standby Power Mechanical Interlock when this panel is used for a generator backup panel. Simply and works as intended.

A great product with plenty of wiring space.Best feature is the SOLID COPPER bus bar.No ruined bus due to arcing or corrosion like the aluminum buses do.Easy to install between studs.Takes the most common and generally available breaker.I recommend using the same brand Siemens or Murray for fit and economy and reliability.I have been an electrician for 40 years. You will like it.

I like these panels a lot, I have two of them, one in my basement and one in my wood shop. The copper bus is a nice feature. Easy to install and good amount of room to run the wires. I replace an old Square D Homeline 20 space box. Now I have plenty of expansion. BTW - 100AMPs is plenty enough power to run a woodshop. I've had 3-220V machines running under load and 19-64Watt lights all on at once in a building 180' from the service feed into my house and never even see a light dim. I know that's not the panel do this but for those that were wondering how large of a breaker box to install. Unless you're running 3 phase equipment you will be fine with 100A.

Good sized panel, lots of space, to replace one from the 50's which is past its time and dangerous.In the one I purchased, it's different than pictured (just a bit). The on I received purchased has two less ground bars installed than pictured here. This seems very small, but that's an extra $10 I'll be spending to get a very organized final panel.The quality of construction is quite good.If you're looking for the nicest panels for modern circuit breakers, go with square d. They have a snap on neutral bus as well, which makes for an extremely neat panel.Siemens breakers are not as common at my local big box store.A Plus for people upgrading - siemens manufacturers two pole arc fault circuut breakers. This is a awesome because it means an upgrade in place is possible from older panels with so called 'edison' circuits (circuits utilizing a common neutral for 2 feeds leaving the breaker). Others don't have a similar offering.Ground bars. only buy an exact fit set. After purchasing several sets of ground bars when i saw my panel wasn't as pictured above, and having poor success with the fit in the panel, I suggest researching what the appropriate pn is before buying! These are outrageously priced (ground bars) given that they're small pieces of Al. (true for all manufacturers.)

Bought used from amazon for a super low price, not a scratch on it, looked like it had never been opened. These are very user friendly panels. Copper busses are nice.

Great quality, its everything you need in one box

Got exactly what I needed, quickly. Very easy to install. 3rd year in the trade and I choose this brand over Any other.

I bought it to upgrade my existing panel, I was very pleased with the purchase, it is well built and ready to add a mechanical interlock for a generator standby circuit breaker.