Overview
The Marathon 3 pole fuse holder 600V 100A is an industrial-grade Class R fuse block designed to provide dependable overcurrent protection in multi-phase electrical systems. This three-pole configuration supports standard Class R fuses and is built to withstand the demands of motor control centers, panel boards, and heavy industrial machinery. The Marathon 3 pole fuse holder accepts industry-standard fuses and offers both screw and box terminal options depending on the specific model variant.
Key Features
- 3-pole configuration for three-phase power distribution
- 100A rated current capacity at 600V AC service
- Class R fuse compatible for industry-standard protection
- Thermoplastic insulating base construction
- Spring-clip reinforced terminal design for secure connections
- UL recognized and CSA certified for North American compliance
Technical Specifications
- Voltage Rating: 600V AC
- Current Rating: 100A
- Number of Poles: 3
- Fuse Class: Class R
- Insulator Material: Thermoplastic
- Terminal Type: Box Lug with Spring Clip or Screw (varies by model)
- Short Circuit Withstand: 200KA at 600V
- Agency Approvals: UL Recognized, CSA Certified
- Origin: Designed for North American electrical systems
Typical Applications
The Marathon 3 pole fuse holder is widely used in:
- Motor control centers and variable frequency drive (VFD) installations
- Industrial panel boards and distribution cabinets
- Heavy machinery and production equipment protection
- Three-phase power distribution systems
- Retrofit and replacement installations in existing electrical systems
Compatibility & Replacements
Compatible With
- Class R fuses (61A–100A ratings)
- Three-phase 480V and 600V electrical systems
- Standard panel mount installations
- Motor starter and soft starter applications
- Industrial control enclosures and junction boxes
Replaces / Drop-In Replacement For
Verify exact compatibility with your system integrator or electrical engineer before ordering. Marathon manufactures multiple 3-pole 100A variants (including Class R and Class J models); ensure the fuse class and terminal configuration match your application requirements.
Works With
- Class R fuse cartridges (primary compatibility)
- Industrial electrical control systems
- UL Listed motor control centers
- Standard North American 600V AC distribution networks
