Eaton BP/FRN-R-100 100A Time Delay Cartridge Fuse

Product Description

The EATON BP/FRN-R-100 is a 100-amp, 250-volt dual-element time delay cartridge fuse designed for motor branch circuit protection. Classified as a UL-listed Class R fuse with a 200,000 amp interrupting rating (AIR), it belongs to the Fusetron FRN-R series built for heavy-duty service. The dual-element design separates overload response from short-circuit response, allowing the fuse to ride through normal motor inrush current at startup while still opening quickly under sustained dangerous overload conditions. At the 100A rating, this fuse ships with knife-blade ends. Typical installers are licensed electricians working on motor circuits in commercial or industrial settings.

This fuse is used in motor branch circuits where time delay protection is required to accommodate inrush current during motor startup without nuisance opening. It is suited for applications involving single-phase or three-phase motors where overload and single-phasing protection are critical. The time delay characteristic allows normal startup surges to pass while the fuse opens before motor windings reach burnout temperatures under prolonged overload. It fits Class R fuse holders and rejection-style disconnects rated for 250 volts.

Key Features

• Dual-element time delay design allows motor inrush to pass while protecting against sustained overloads
• UL-listed Class R, 200,000 AIR for high fault-current interrupting capacity
• 100A rating uses knife-blade end construction
• Rated 250 volts AC for motor branch circuit applications
• Protects motors from burnout caused by overloads and single-phasing conditions

Compatibility

Designed for use in UL Class R fuse holders and rejection-style fusible disconnects rated for 250 volts. Knife-blade end configuration applies to fuses in the 70A to 200A range within the FRN-R series.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit at the disconnect before handling or replacing fuses. Verify that the fuse holder or disconnect is rated for Class R cartridge fuses and is suitable for the circuit voltage and amperage. Never substitute a fuse with a higher ampere rating than the circuit is designed to carry.

Technical Specifications

• Ampere Rating: 100A
• Voltage Rating: 250 volts
• Fuse Class: Class R
• Interrupting Rating: 200,000 AIR
• Element Type: Dual-element, time delay
• End Configuration: Knife-blade
• Weight: 0.403 pounds
• Listing: UL Listed

Standard Information

• Brand: EATON
• Manufacturer Part Number: BP/FRN-R-100