I am changing my electrical service from overhead to underground. At the same time I am relocating it and replacing the existing rusted service panel with a new meter base, service panel (MBSP) combination. I have a couple questions:

The new location is further from the home's main panel. Can I connect additional SER to the existing SER? If so what types of connectors and junction box should I use? The current distance from the service panel to the main panel is about 25 feet. The new service panel will be about 60 feet from the main panel.

I have spoken with both the power company engineer and the county inspector and I can choose to mount the new MBSP on a pole or directly to the house. The home is a two section manufactured home and it is unlikely that it will ever be moved. Is there an advantage to either mounting location?

Thanks

Yes, SER cable can be extended. Need to know the size of the SER cable to size the junction box and wire connectors. Also, will the box be inside or outdoors?

Not familiar with the acronym MBSP.I assume this is the Main Breaker. 4 wire cable is required from the main to the panelboard. Whether this main is pole or building mounted will dictate how much 4 wire cable is needed. Conveinence is another factor.

Thanks... the MBSP was a shorthand for "meter base service panel" - sorry for the confusion, I added it after the first use of the words in attempt to reduce my typing.

The SER wire is 4/0,4/0,4/0,2/0. What size junction box and connectors would you recommend? The junction box will be located in the crawlspace.

The meter base service panel will be located beside or on the home, about 60 feet from the breaker box.

The min size box would be 12" x 12". This is a minimum, and is just enough room.

Unless your really good at forming conductors and splicing. I would use a PVC 18" x 18" x 6" deep box.

If you use a metal box, be sure to ground the box also. Using a PVC box will be easier.

For connectors, I would use something similar to the IT Series, found on page 1 of :
http://www.nsipolaris.com/pdf/polaris.pdf

These work very well, need an Allen Wrench to tighten the connector, and they are already insulated.