Overview
The S&C Positrol 64100 is a 100-ampere universal-style fuse link engineered for reliable protection in distribution cutout systems. Rated for standard speed operation, this 23-inch fuse link is designed to interrupt faults precisely when needed, eliminating nuisance operations that increase maintenance and downtime costs. Positrol Fuse Links operate only when a fault occurs within the cutout’s zone of protection, reducing maintenance and operation costs.
Key Features
- 100-ampere capacity for medium-load distribution applications
- Removable button head to accommodate cutout fuse tubes with arc-shortening rods
- Manufactured to ISO 9001 quality standards and Rural Utilities Service (RUS) accepted
- Universal style compatible with standard 27-kV maximum design cutouts
- Standard speed rating for balanced protection across distribution networks
Technical Specifications
The 64100 delivers consistent performance with the following verified characteristics:
- Rated Capacity: 100 amperes
- Fuse Style: Universal
- Speed Rating: Standard Speed
- Physical Length: 23 inches
- Head Style: Removable button (arc-shortening compatible)
- Design Standard: IEEE C37.41 compliance
Typical Applications
The S&C Positrol 64100 is widely used in:
- Distribution feeder protection in utility networks
- Primary circuit protection in transformer banks (up to 27 kV systems)
- Industrial distribution circuits requiring reliable fault clearing
- Systems requiring coordination with standard cutout equipment
- Rural and urban distribution systems managed by utilities
Compatibility & Replacements
Compatible With
- S&C Positrol cutout equipment (universal cutout models)
- Standard 27-kV maximum design distribution cutouts
- Cutout fuse tubes equipped with arc-shortening rods
- Utility distribution networks and industrial feeder systems
Replaces / Drop-In Replacement For
- S&C Positrol 64100 (catalog number variant without “R1” suffix)
- Direct replacement for in-service 100A standard-speed universal fuse links
- Verify compatibility with your specific cutout model before ordering
Works With
- Standard distribution cutout fuse equipment (universal mounting)
- IEEE C37.41 compliant protection systems
- Rural Utilities Service (RUS) certified power distribution networks
- Time-current coordination curves and relay protection schemes




