Overview
The Ferraz Shawmut 60608R is an open-style Class R fuse block designed for industrial and commercial electrical systems requiring 60-amp protection at 600 volts. Manufactured by Mersen (formerly Ferraz Shawmut), this 3-pole fuse block features a molded glass-filled polycarbonate (GFPC) barrier with tin-plated copper fuse clips and box lug terminals. The unit is UL 512 and CSA certified, making it suitable for interior panel mounting in control cabinets, disconnects, and distribution equipment.
Key Features
- Class R fuse accommodation: Accommodates all Class R 250 and 600V power fuses
- Wire flexibility: Pressure plate, and box connectors fit a wide range of stranded or solid copper or aluminum wire (14 to 2 AWG)
- Durable construction: Insulators are molded glass-filled polycarbonate (GFPC) or phenolic with verified dielectric strength in excess of 2500V
- High conductivity clips: All fuse clips are made of high conductivity tin-plated copper
- Modular design: Adder block which can be snapped onto 1, 2, or 3 pole blocks to form multi‑pole segmented blocks (30, 60, and 100A models)
Technical Specifications
- Poles: 3
- Amperage rating: 60A
- Voltage rating: 600VAC/VDC
- Fuse class: Class R
- Terminal type: Box lug
- Wire gauge: 14 to 2 AWG (copper/aluminum)
- Insulation material: Glass-filled polycarbonate (GFPC)
- Dielectric strength: 2500V minimum
- Fuse holder code: Q
- Mounting: Threaded panel mount
- Dimensions: 7 in L × 4.55 in W × 2 in H
- Weight: 1 lb
- Certifications: UL 512, CSA approved
- UPC: 782001759926
Typical Applications
The 60608R is commonly used in:
- Motor control centers and variable frequency drives (VFDs)
- Industrial control cabinets and enclosures
- Commercial distribution panels and disconnect switches
- Power distribution systems requiring 60A branch protection
- Equipment where Class R fuse coordination is required for arc-flash mitigation
Compatibility & Replacements
Compatible With
- A6D-R, A6K-R and TRS-R Series Fuse
- All Class R 600V power fuses (250V and 600V ratings)
- Industrial control systems and electrical panels
- Equipment using Class R fuse architecture
Replaces / Drop-In Replacement For
- Earlier Gould Shawmut 60608R models
- Legacy Ferraz Shawmut fuse block designs (same part number across brand transition)
Works With
- Standard panel-mount electrical enclosures
- UL/CSA-approved control systems and disconnects
- Any Class R fuse-based protection scheme
- Stranded or solid copper/aluminum conductors (14–2 AWG)
