Eaton NON-450 Class H Fuse 450A 250V

Product Description

The EATON NON-450 is a 450-amp, 250-volt Class H one-time cartridge fuse designed for branch circuit and feeder protection in industrial, commercial, and residential electrical systems. Class H fuses provide overcurrent protection by interrupting fault current before downstream components are damaged. The NON-450 is a non-renewable fuse, meaning it must be replaced after a fault event rather than re-fused. At 2.68 pounds, this is a substantial fuse intended for high-amperage applications. Licensed electricians and maintenance electricians are the primary installers of this product.

The NON-450 is suited for use in disconnect switches, motor circuits, distribution panels, and industrial equipment where 250-volt, 450-amp overcurrent protection is required. Typical applications include large motor branch circuits, HVAC equipment disconnects, and industrial feeder protection. Class H fuses are widely used where high-fault-current interrupting capacity is not required and circuit conditions are well-controlled.

Key Features

• 450-amp current rating for high-load branch circuit and feeder applications
• 250-volt AC voltage rating suitable for standard single-phase and three-phase distribution systems
• Class H one-time (non-renewable) cartridge construction
• Direct replacement form factor for standard Class H fuse holders and disconnect blocks
• Weighs 2.68 pounds — appropriate for large-format fuse holders

Compatibility

Designed as an OEM-style replacement for Class H cartridge fuse holders and disconnect switches rated for 450-amp, 250-volt service.

Installation Notes

Installation must be performed by a licensed electrician in accordance with NFPA 70 (NEC) requirements for overcurrent protection devices. Always de-energize and verify the absence of voltage using a calibrated meter before handling or replacing any fuse. Use appropriately rated fuse pullers and insulated tools when servicing Class H fuse holders. Never substitute a higher-amperage fuse to restore service without first identifying and correcting the fault condition.

Technical Specifications

• Amperage Rating: 450 amps
• Voltage Rating: 250 volts
• Fuse Class: Class H
• Fuse Type: One-Time (Non-Renewable)
• Weight: 2.68 pounds
• UPC: 05171230450

Standard Information

• Brand: EATON
• Manufacturer Part Number: NON-450