Canon FM0-4788-000 fixing assembly is the fuser unit listed for compatible Color imageCLASS printer models. It is the printer component identified in the parts catalog as the fixing assembly.
This is the 230V version. The catalog distinguishes it from the 120V assembly, part FM0-4787-000, so the voltage variant is a defining detail of this replacement part. The listed models include Color imageCLASS MF624Cw and MF628Cw.
The parts list specifies one assembly, with references to H801, SR609, SR610, SR611, TH802 and TP1. Use this identification when selecting the matching fixing-unit part for supported equipment.