S&C Electric 124040R4 - SM-4 Fuse Refill 34.5kV Standard Velocity (1 lb)

S&C Electric 124040R4 is a high-voltage SM-4 fuse refill designed for protecting electrical distribution systems from overcurrent conditions. Rated for 34,500V AC applications, this standard-velocity fuse features robust construction with precision-engineered internal elements for reliable interruption. The 1 lb refill cartridge complies with industry standards for medium-voltage protection and is engineered for use in S&C SM-4 fuse holders. Typical applications include utility substations, industrial power distribution, and renewable energy systems requiring 34.5kV circuit protection.

Key Features & Specifications

• Type: SM-4 fuse refill cartridge, standard velocity
• Voltage Rating: 34,500V AC
• Family: S&C SM-4 fuse system
• Weight: 1 lb
• Section: Fuse refills
• Applications: Medium-voltage power distribution, substation protection