For technical specifications, see https://support.industry.siemens.com/cs/ww/en/ps/16135/td

For FAQs, see https://support.industry.siemens.com/cs/ww/en/ps/16135/faq

For manuals, see https://support.industry.siemens.com/cs/ww/en/ps/16135/man

For the conversion tool, e.g. from 3RT10 to 3RT20 see http://www.siemens.com/sirius/conversion-tool