MSA Omega Five Unit Supply Mode D'emploi page 19

1. Set switch LINE VOLTAGE SELECTOR to the appropriate mains
voltage position on rear panel (FIGURE 3-2).
Figure 5-1. Changing the Mains Voltage
2. Open the internal fuseholder, and install the appropriate fuse. A
table of fuses is included in FIGURE 5-1 and replacement parts are
listed in TABLE 5-2.
3. Supply appropriate linecord that meets local safety standards.
5-2