Overview
The Bussmann RES-3 is a Class H non-current-limiting renewable fuse rated for 3A at 600V AC. RES-3 fuses are designed for general-purpose circuit protection in residential, commercial, and light industrial applications. The renewable cartridge design allows for simple replacement of the link without changing the entire fuse assembly, reducing maintenance costs and downtime.
Key Features
- Class H fuse classification for broad compatibility
- 10 kAIC interrupt rating at 250V AC
- Non-current-limiting design for general overcurrent protection
- Renewable (replaceable link) fuse cartridge
- Ferrule-end terminals for standard fuse clips
- RoHS compliant
Technical Specifications
- Amperage Rating: 3A
- Voltage Rating: 600V AC
- Fuse Class: Class H
- Type: Renewable (non-one-time)
- Interrupt Rating: 10 kAIC at 250V AC
- Fuse Indicator: Non-indicating
- Terminal Style: Ferrule end × ferrule end
- Overall Length: ~5 inches
- Diameter: ~0.81 inches
- Weight: 0.18 lbs (per 10-unit carton)
- Certifications: UL Listed, CSA Certified
Typical Applications
The RES-3 renewable fuse is commonly used in:
- Residential and commercial panel protection
- Industrial control circuit protection
- General-purpose motor branch circuits
- Power distribution units with Class H compatibility
- Maintenance of legacy electrical systems
Compatibility & Replacements
Compatible With
- Standard Class H fuse clips and holders
- Ferrule-end fuse receptacles rated for 600V AC
- Residential, commercial, and industrial panel assemblies
- Any circuit designed for Class H renewable fuses
Replaces / Drop-In Replacement For
- Earlier generation Bussmann RES-3 fuses
- Other Class H 3A 600V renewable fuses with ferrule terminals
- Note: Verify socket compatibility before substitution
Works With
- Class H fuse classification standards (UL/CSA)
- Ferrule-end fuse cartridge receptacles
- Standard electrical panel wiring and terminals
