Monster Fuses > Fuses > 254125R4 254125R4 - S&C 34.5kV SM4 Part Number: 254125R4 Description: S&C 34.5kV SM4 Mfg Voltage: 34.5 Rating: 80 E Manufacturer: S&C Speed: S Type: SM4 Photo is a representation of product. Voltage, amperage, and other details may vary. Request a Quote Resistance Test Results: Manufacturer's Fuse mΩ Values Low:0.699 High:0.783 Average:0.721