A 110V version of the iC60H RCBO is available which is suitable for use on a standard 0 - 110V AC TN-S earthing system
A suitable RCBO to use would be the A9D198** range - ** = Amperage of the RCBO
If the 110V AC supply is 55 -0- 55V AC, the iC60H2 RCBO must be used
A suitable RCBO to use would be the A9D192** range - ** = Amperage of the RCBO
For example for 10A use A9D19210 this is a 2 pole RCBO that can be used on 55 - 0 - 55v AC networks
For more information on the above ranges please see page 2/5 and 2/6 of the attachement