The rated voltage of DP Series axial AC fans from Sunon is 220/240VAC.
If you are looking for finger guards for these devices, the 119mm and 120mm sizes of finger guards are generally considered interchangeable. The hardware can typically easily absorb the small changes in size.
You can find some possibilities for your fan finger guards through this Product Index link.
Applicable Part Numbers
DP200A-2123XBL.GN
DP200A-2123XBT.GN
DP200A-2123XSL.GN
DP200A-2123XST.GN
DP201A-2123HBL.GN
DP201A-2123HBT.GN
DP201A-2123HSL.GN
DP201A-2123HST.GN
DP201AT-2122HBL.GN
DP201AT-2122HBT.GN
DP201AT-2122HSL.GN
DP201AT-2122HST.GN
DP202A-2123MBL.GN
DP202A-2123MBT.GN
DP202A2-123MSL.GN
DP202A-2123MST.GN
DP202AT 2122MBL.GN
DP202AT 2122MBT.GN
DP202AT 2122MSL.GN
DP202AT 2122MST.GN
DP203A-2123LBL.(5).GN
DP203A-2123LBL.GN
DP203A-2123LBT.(5).GN
DP203A-2123LBT.GN
DP203A-2123LSL.GN
DP203A-2123LST.GN
DP203AT-2122LBL.GN
DP203AT-2122LBT.GN
DP203AT-2122LSL.GN
DP203AT-2122LST.GN
DP209WR 2123HBT.GN
DP209WR-2123HBL.GN
DP209WR-2123HSL.GN
DP209WR-2123HST.GN
259-1932-ND
259-1433-ND
259-1933-ND
259-1632-ND
259-1934-ND
259-1434-ND
259-1811-ND
259-1882-ND
259-1935-ND
259-1936-ND
DP201AT-2122HSL.GN-ND
259-1937-ND
DP202A-2123MBL.GN-ND
259-1435-ND
259-1983-ND
DP202A-2123MST.GN-ND
DP202AT2122MBL.GN-ND
DP202AT2122MBT.GN-ND
DP202AT2122MSL.GN-ND
DP202AT2122MST.GN-ND
DP203A-2123LBL.(5).GN-ND
259-1938-ND
DP203A-2123LBT.(5).GN-ND
259-1436-ND
259-1939-ND
DP203A-2123LST.GN-ND
DP203AT-2122LBL.GN-ND
DP203AT-2122LBT.GN-ND
DP203AT-2122LSL.GN-ND
DP203AT-2122LST.GN-ND
DP209WR2123HBT.GN-ND
DP209WR-2123HBL.GN-ND
DP209WR-2123HSL.GN-ND
DP209WR-2123HST.GN-ND