Product Description
Up for sale is a genuine S&C Electric 121200R3 SM-4 Power Fuse Refill Unit rated for 7.2 kV nominal and 125 Amps. This medium-voltage refill unit is designed for use with compatible S&C SM-4 fuse holders in electrical distribution systems. Its purpose is to provide overcurrent protection by interrupting fault currents, helping protect transformers, overhead distribution equipment, switches, and other medium-voltage electrical equipment from damage caused by overloads and short circuits.
- Item listed is a new, old stock.
Features & Specifications
- Brand: S&C Electric Company
- Part Number: 121200R3
- Series: SM-4
- Type: Power Fuse Refill Unit
- Voltage Rating: 7.2 kV Nominal (8.3 kV Maximum)
- Current Rating: 125 Amps
- Application: Medium Voltage Distribution Protection
- Compatible Holder: S&C SM-4 Fuse Holder
- Speed: Standard Speed
S&C SM-4 refill units are commonly used by electric utilities, industrial facilities, substations, and commercial power distribution systems where reliable medium-voltage circuit protection is required. This refill unit is intended as a replacement fuse element for existing SM-4 fuse assemblies.
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