Monster Fuses > Fuses > 123125R4 123125R4 - S&C 23kV SM4 Part Number: 123125R4 Description: S&C 23kV SM4 Mfg Voltage: 23 Rating: 80 E Manufacturer: S&C Speed: STD 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:0.695 High:0.774 Average:0.739