Ground Reference Modules

Littelfuse delivers vital products to address customer needs for protection, safe control, and distribution of electrical power in industrial applications. Protection relay accessories such as the Littelfuse ground reference modules are designed to connect dc ground-fault monitors to a dc bus. These modules help provide ground-fault protection and minimize electrical hazards. This product accessory group includes seven POWR-GARD® ground reference module series that connect to an ungrounded dc bus with ampere ratings from 24 – 1000 V dc.