The medium-current rectifiers with necessary "heat sinks" (for heat dissipation) and surge capacitors, are mounted in a molded case with provision for surface mounting or mounting on the back of any GE drawout relay case for switchgear applications. It is available with a single rectifier or with double rectifiers. Both side include mounting plate. 

The low-current rectifiers are mounted on a simple insulated base to provide ease of mounting and have a protective plate for mechanical protection of the individual rectifiers.