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Class G Fuse Blocks

Ferraz Shawmut Class G Fuse Blocks accommodate all 15, 20, 30 and 60 ampere Class G fuses. A choice of box, screw or pressure-plate connectors fit a wide range of stranded or solid copper wire. Insulators are glass-filled polycarbonate (GFPC) with verified dielectric strength in excess of 2500V. Fuse blocks feature a unique adder block which can be snapped onto 1-, 2-, or 3-pole blocks to form multi-pole segmented blocks of as many poles as desired. All fuse clips are made of high conductivity tin-plated copper alloy.

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  • Unique integral DIN rail adapters for 15, 20 & 30A blocks
  • Unique adder-block design (all ampere ratings) for design flexibility
  • Spring reinforcing standard for 60A clips
  • Features high conductivity copper alloy fuse clips


  • Recommended Fuse Usage - AG

Part Numbers

  • Browse Product Data for part numbers & product information
  • AC: 600VAC: 15A & 20A, 480VAC: 30A & 60A, Withstand Rating: 100kA using screw, pressure plate or box connections, 10kA using quick connects., Temperature/flammability: GFPC insulators reated 125o C RTI, 94V-0 flammability
  • All fuse blocks meet the requirements of UL Std. 512
  • UL Listed Guide IZLT, File E52283
  • CSA Certified Class 6225, File 32169