Hybrid Protection

Hybrid DC Power Relay

Hybrid χs-EV Series

The new Xs-EV product series is one of the latest developments in Mersen Hybrid DC Power Relays. Xs-EV have been engineered to provide high DC switching performances versus conventional mechanical power relays. This series addresses DC-applications like, but not limited to, Electrical Energy Storage, EV/HEV, DC Smart-grid, PV installations. Xs-EV provide maximum flexibility in equipment design and ultimate DC operation performance. This Power Relay is a Hybrid technology with the capability of switching both high voltage and high current, designed specially for electrical vehicle applications. All information provided in this datasheet relates to prototypes still under development. Most features can be modified to adjust to customers’ needs (incl. current/voltage ratings and timings). Some characteristics will require additional testing to confirm preliminary estimation (incl. cycling and extreme environment operation).



  • DC specific design
  • Bidirectional
  • Arc-less
  • Reduced footprint & mass
  • Low conduction losses
  • Repeatable current make/break capability for resistive & inductive loads at full rated voltage and current
  • Enhanced cycling performances
  • Built-in turn ON fault detection
  • Built-in charging circuit (optional)
  • Easily tunable L/R rating (optional)
  • Galvanic insulation


  • Voltage Range (VDC) 500 - 1200 VDC
  • Body Material PA 12 (colored Black)
  • Standards IATF - ISO/TS 16949 Quality management system
  • Application DC Power Relay for demanding EV applications
    DC grid protection, PV applications
  • ROHS Compliant Yes
  • Lead Free Consult Technical Services
  • CE conformity Yes


  • XsEV120B300-B1500
  • XsEV120B300-B2000
  • XsEV120C300-B2000
  • XsEV90B300-B1500
  • XsEV90B300-B2000


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