Monster Fuses > Fuses > 123025R4 123025R4 - S&C 23kV SM4 Part Number: 123025R4 Description: S&C 23kV SM4 Mfg Voltage: 23 Rating: 15 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:4.55 High:5.757 Average:5.127