Semiconductor Protection Fuses

Square Body High-Speed Fuse-Links DC Protection

Protistor® size 2x302 aR 2400VDC

Mersen DC offers provide a very high performant protection for railway power and auxiliary circuits. Mersen DC Semiconductor fuse-links were developed to provide improved performance required by today's new DC equipment. These fuse-links are typically operated at more elevated temperature than other fuse type, have lower I˛t to minimize damage to protected components on short circuits, lower watts loss and longer life.



  • Volts (VDC) 2400 VDC
  • Ampere Range (A) 400 - 800 A
  • Size per Standard 2x302
  • Speed / Characteristic aR
  • ROHS Compliant Consult Technical Services
  • Lead Free Consult Technical Services
  • CE conformity Consult Technical Services


  • D2302SD24C400QF - K084925
  • D2302SD24C500QF - L084926
  • D2302SD24C630QF - M084927
  • D2302SD24C700QF - N084928
  • D2302SF24C800QF - T075296


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