Mersen 21035R Fuse 100A 250V

Product Description

The MERSEN 21035R is a 100-amp, 250-volt fuse designed for overcurrent protection in electrical distribution and industrial power circuits. Fuses of this class interrupt fault current before it can damage downstream equipment, wiring, or connected loads. Rated at 100 amps and 250 volts, the 21035R is sized for mid-range branch circuit and feeder protection. It is installed by licensed electricians and qualified industrial maintenance technicians during new construction, panel upgrades, and equipment replacement work.

This fuse is suited for use in commercial and industrial electrical panels, disconnect switches, and fusible load centers where 250-volt circuits are present. Typical applications include motor branch circuits, HVAC disconnect protection, and general-purpose feeder protection in facilities requiring reliable overcurrent interruption. It is appropriate for both new installations and direct replacement of failed or undersized overcurrent devices in existing equipment.

Key Features

• 100-amp continuous current rating for mid-range circuit protection
• 250-volt rating suits standard single-phase and multi-phase branch circuits
• Designed as a direct replacement fuse for overcurrent protection applications
• Compact fuse form factor fits standard fusible disconnect and panel hardware

Compatibility

Designed as an OEM-style replacement fuse for 100-amp, 250-volt fusible disconnects, load centers, and distribution panels requiring this current and voltage rating.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and verify absence of voltage using a calibrated meter before opening any fusible disconnect or panel. Use the correct fuse puller for removal and insertion to avoid contact with energized parts. Never replace a fuse with a unit of a higher amperage rating than what the circuit is designed for.

Technical Specifications

• Amperage Rating: 100 amps
• Voltage Rating: 250 volts
• UPC: 78200166463

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: 21035R