S&C Electric 264400R4 - SM-4 Fuse Refill 34.5kV (250E Slow)
S&C Electric 264400R4 - SM-4 Fuse Refill 34.5kV (250E Slow)

S&C Electric 264400R4 - SM-4 Fuse Refill 34.5kV (250E Slow)

S&C Electric
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S&C Electric 264400R4 is a high-voltage power fuse refill designed for overcurrent protection in outdoor distribution and substation systems. This SM-4 family component is rated for 34,500V and operates with a slow velocity characteristic to coordinate with downstream protection devices. The unit weighs 1 lb and is constructed with a silver or pretensioned nickel-chrome current-responsive element for precise melting time-current characteristics and reliable fault interruption. It complies with S&C standard specifications for high-voltage power fuse applications. This fuse refill is typically used in utility distribution networks and substation installations requiring dependable overcurrent protection.

Key Features & Specifications
  • Manufacturer: S&C Electric
  • Item Subcategory: Fuse Part And Accessory
  • Family: SM-4
  • Type: 264
  • Weight: 1 lb
  • Voltage Rating: 34500V
  • Velocity: Slow
  • Section: Fuse Refills
  • Part Number: 264400R4
  • Amperage: 250E
  • Interrupt Rating: 17,500 amperes RMS symmetrical
  • Application: Outdoor distribution and substation
  • Construction: Silver or pretensioned nickel-chrome element
  • Features: Fast, positive fault interruption
  • Standards: S&C standard specifications