Not a big named company, but I thought that those of us that want to see a DP RCBO in a single module might want to see this, other sized denominations are available.
http://www.meteorelectrical.com/garo-6-amp-30ma-1-module-rcbo-type-b.html?osCsid=3sfoem6fmnebct1p53mb56phu1
Andy Guinness
http://www.meteorelectrical.com/garo-6-amp-30ma-1-module-rcbo-type-b.html?osCsid=3sfoem6fmnebct1p53mb56phu1
Andy Guinness