Rectifiers are electrical devices utilized in traction alternator systems to convert AC power to DC power.

Sherwood Electromotion Inc. (SEI) supplies new and remanufactured rectifier banks for rolling stock applications, delivers a complete range of rectifier bank services and provides an extensive selection of replacement parts. SEI supports all types and configuration of rectifier banks.

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SEI's Rectifier Scope of Supply

SEI's Scope of Supply offers a world-wide customer base the Optimal Choice and Value for rectifiers, related Parts, and required Services.


SEI has dedicated engineering and manufacturing programs to ensure the availability of high quality parts and sub-assemblies.


SEI is proud to offer its customers a wide choice of standard and application specific services.

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