Overview
The Littelfuse LR60100-3C is a POWRGARD Class R fuse block engineered for high-performance overcurrent protection in industrial applications. Rated for 100 amperes at 600 volts AC, this 3-pole fuse holder combines robust construction with proven electrical safety. The one-piece fuse clip design ensures positive electrical contact with minimal heat rise, making it suitable for demanding control circuits, motor protection, and main distribution systems.
Key Features
- Class R Fuse Block Design — One-piece fuse clip design for positive contact and minimal heat rise
- Side Barriers — Isolation between poles prevents cross-contamination and enhances safety
- Molded Phenolic Base — UL-rated at 150°C for long-term thermal stability and durability
- Box Lug Terminals — Accommodates #2/0 copper or aluminum wire for secure connections
- Industrial-Grade Construction — Designed for harsh environments and frequent thermal cycling
Technical Specifications
- Voltage Rating: 600V AC
- Current Rating: 100A
- Poles: 3
- Fuse Class: Class R (Rejection Type)
- Interrupting Rating: 200,000 Amps
- Terminal Type: Box Lug
- Maximum Wire Size: #2/0 Copper or Aluminum
- Base Material: Molded Phenolic
- Temperature Rating: 150°C
- Weight: 1.42 lbs
Typical Applications
- Motor control centers (MCCs) and variable frequency drive (VFD) protection
- Industrial main distribution panels and feeder circuits
- Machinery and equipment branch circuit protection
- Renewable energy systems (solar combiners, inverters) requiring Class R fusing
- HVAC and process control systems requiring high-reliability overcurrent protection
Compatibility & Replacements
Compatible With
- Standard Class R fuses (200,000A interrupting rating)
- 600V AC industrial control systems
- UL-recognized overcurrent protection schemes
- Panel-mounted electrical distribution equipment
Replaces / Drop-In Replacement For
- LJ60100-3C — Bussmann Fusetron equivalent model
- Legacy Class R fuse blocks from competing manufacturers with matching footprint and terminal configuration
Works With
- Class R rejection-type fuses (Littelfuse and equivalent brands)
- Standard electrical panel wiring and interconnects
- Industrial control relay logic and modern digital protection systems
