S&C Electric 253075R4 - E Fuse 25kV 50A (SM-4 Refill)
S&C Electric 253075R4 - E Fuse 25kV 50A (SM-4 Refill)

S&C Electric 253075R4 - E Fuse 25kV 50A (SM-4 Refill)

S&C Electric
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S&C Electric 253075R4 is a Type E slow-blow fuse refill unit designed for overcurrent protection in power distribution systems. It is rated for 25,000V and 50 amperes, with an interrupting rating of 12,500A RMS symmetrical. This refill unit weighs 1 lb and is constructed for use in SM-4 fuse holders, suitable for both indoor and outdoor installations. It complies with standard time-current characteristics (TCC 115-4) for reliable coordination in 25 kV systems. Typical applications include protecting transformers, feeders, and other distribution equipment in utility and industrial settings.

Key Features & Specifications
  • Type: E
  • Voltage Rating: 25000V
  • Amperage: 50A
  • Interrupt Rating: 12,500A RMS symmetrical
  • Speed: Slow
  • Weight: 1 lb
  • Mounting Type: SM-4
  • Series/Frame: SM-4
  • Application: Indoor/Outdoor Distribution
  • Section: Fuse Refills