S&C Electric 134300R4 - SM-5 Medium Voltage Fuse Refill (34.5kV Standard Velocity)

S&C Electric 134300R4 is a medium-voltage fuse refill designed for high-voltage circuit protection in industrial power systems. This SM-5 class fuse operates at 34,500V AC with standard interrupting characteristics, featuring a durable construction with precision-engineered fusible elements for reliable fault clearing. The 3 lb refill cartridge maintains compatibility with SM-5 fuse holders while meeting stringent industry standards for medium-voltage protection. Its standardized velocity profile ensures predictable arc quenching performance in utility and industrial applications including substations, transformers, and feeder circuits.

Key Features & Specifications

• Type: SM-5 class medium-voltage fuse refill (Type 134)
• Voltage Rating: 34,500V AC
• Class Rating: SM-5
• Velocity: Standard interrupting characteristics
• Weight: 3 lb
• Section: Fuse Refills
• Family: SM-5
• Standards: IEEE C37.40-2003 for distribution class fuses
• Applications: Substation protection, transformer circuits, industrial power distribution