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Class T Fuse Blocks - 300V

Ferraz Shawmut Class T Fuse Blocks accommodate Class T fuses up to 600A. Insulators are either the durable, glass-filled polycarbonate (GFPC) or phenolic with verified dielectric strength in excess of 2500V. Ferraz Shawmut is the only manufacturer to offer Class T blocks with copper connectors.

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  • Unique integral DIN rail adapters for 600V, 30 & 60A blocks
  • Full barrier design (30 & 60A) increases pole to pole safety
  • Unique adder-block design (30 & 60A) for design flexibility
  • Spring reinforcing standard for all 30 & 60A clips
  • Features high conductivity copper alloy fuse clips
  • Cool running high amperage (100 - 600A) connectors
  • Copper connectors available 30 - 600A


  • Recommended Fuse Usage - Class T Blocks (300V)à.use with A3T - Class T Blocks (600V) use with A6T

Part Numbers

  • Browse Product Data for part numbers & product information
  • AC: 300VAC: 30A, 60A, 100A, 200A, 400A, 600A, 600VAC: 30A, 60A, 100A, 200A, 400A, 600A, Withstand Rating: 200,000A Symmetrical
  • All fuse blocks meet the requirements of UL Std. 512
  • UL Listed, Guide IZLT, File E52283
  • UL Recognized Component, Guide IZLT2, File E52283
  • CSA Certified, Class 6225, File 32169
  • RoHS Compliant