Overview
The Bussmann KRP-C-800SP is an Eaton Bussmann Low-Peakâ„¢ Class L fuse designed for industrial and commercial power protection. This time-delay, current-limiting fuse is rated 800 A with an interrupting rating of 300 kA at 600 Vac and 100 kA at 300 Vdc. The dual-element design ensures both overload and short-circuit protection in demanding applications.
Key Features
- High Interrupting Rating: 300 kA interrupting capacity provides 50% more protection than standard Class L fuses
- Time-Delay Performance: 4 seconds minimum time-delay at 500% rated current prevents nuisance trips on inrush current
- Current-Limiting Design: Reduces fault current and arc energy, extending equipment life
- Dual-Element Construction: Silver-linked fuse for both overload and short-circuit protection for high capacity systems
- Certifications: UL, CSA, CE, and RoHS approved
Technical Specifications
- Nominal Current: 800 Amperes
- Voltage Rating: 600 VAC / 300 VDC
- Interrupting Rating: 300 kA at 600 VAC; 100 kA at 300 VDC
- Class: L (UL Class L)
- Response Type: Time-Delay (Slow-Blow)
- Time-Delay: 4 seconds minimum at 500% rated current
- Terminal Type: Bolted blade end connections
- Body Material: Glass melamine tube
- End Bells: Silver-plated
- Dimensions: 2.5″ diameter x 8.63″ length (63.5mm x 219.2mm)
- Weight: 3.64 lbs
- Indicating/Non-Indicating: Non-indicating
Typical Applications
This fuse is suitable for industrial facilities and factories, safety and security systems, large distribution switchboards, large machinery disconnects, and power panelboards. The 800A rating and 300kA interrupting capacity make it ideal for:
- Main service disconnects and distribution equipment
- Large motor branch protection
- Industrial automation control systems
- Data center and facility power distribution
- Heavy machinery and equipment feeder circuits
Compatibility & Replacements
Compatible With
- 600VAC / 300VDC Class L fused disconnects and switchgear
- Power distribution panels rated for Class L fuses
- Any Class L bolted-blade fuse socket rated 800A or greater
- Industrial control systems and machinery requiring 800A protection
Replaces / Drop-In Replacement For
- Bussmann KRP-C-800SP (interchangeable designation)
- Cooper Bussmann KRP-C-800SP
- Other part number variants: KRP-C-800, KRP-C 800, KRPC-800SP
Works With
- Class L cartridge fuse holders and disconnects
- 600VAC / 300VDC rated equipment and systems
- UL-listed and CSA-certified power distribution equipment
- Any industrial automation platform using bolted-blade Class L fuses
