Overview
The Buss IBR011 F60A fuseholder (part number 21455) is a compact, three-pole cartridge fuse holder rated for 60 amperes at 250 volts AC. Built for reliable branch circuit protection, this Bussmann product features a thermoplastic housing designed for durability and long service life. The unit accommodates standard Class H and Class K cartridge fuses (13/16″ × 3″) and is ideal for industrial control panels, distribution boards, and OEM equipment requiring dependable overcurrent protection.
Key Features
- 60 ampere continuous current rating at 250V AC
- Three-pole configuration for balanced 3-phase or single-phase multi-leg circuits
- Thermoplastic (ABS plastic) housing for added durability and moisture resistance
- Accepts Class H and Class K cartridge fuses (13/16″ × 3″ form factor)
- Screw-terminal connection points for secure wire attachment
- Compact panel-mount design for standard control enclosures
Technical Specifications
The Buss IBR011 F60A delivers robust electrical performance in standard industrial environments:
- Voltage Rating: 250V AC
- Current Rating: 60 amperes
- Number of Poles: 3 poles
- Fuse Type: Class H & Class K cartridge
- Fuse Size: 13/16″ × 3″ (20.6 mm × 76 mm)
- Housing Material: Thermoplastic (ABS plastic)
- Terminal Type: Screw terminals
- Installation: Panel mount
- UL/CSA Listed: Yes
- RoHS Compliant: Yes
Typical Applications
The Buss IBR011 F60A fuseholder is commonly used in:
- Industrial control panels and motor control centers
- Three-phase power distribution systems (up to 250V)
- Machine tool and equipment branch circuit protection
- Automation and process control systems requiring overcurrent protection
- OEM panel assemblies and retrofit installations
- Lighting and general-purpose commercial electrical systems
Compatibility & Replacements
Compatible With
- Eaton Bussmann brand fuses and accessories
- Standard Class H & Class K cartridge fuses (13/16″ × 3″)
- 230V / 250V AC industrial control circuits
- Panel-mount enclosures with standard DIN or NEMA-style cutouts
- Screw-terminal distribution boards and junction boxes
Replaces / Drop-In Replacement For
- Other Buss 60A 250V 3-pole cartridge fuseholders rated for Class H/K fuses
- Verify part number compatibility with your system integrator before ordering
Works With
- Class H & Class K electrical-grade cartridge fuses
- Standard industrial control and power distribution systems
- UL 508 (Industrial Control Panels) compliant assemblies
- IEC 60269 standard fuse systems (international equivalents)
