Mersen A2K35R 250V Class RK1 Time-delay Fuse 35A

Product Description

The MERSEN A2K35R is a 250-volt, 35-amp Class RK1 time-delay fuse designed for overcurrent protection in electrical distribution systems. Class RK1 fuses provide a high degree of current limitation, making them a reliable choice for protecting motors, transformers, and branch circuits from short-circuit and overload conditions. The time-delay characteristic allows temporary inrush currents to pass without nuisance tripping while still responding quickly to sustained fault conditions. This fuse is installed by licensed electricians working on commercial and industrial electrical panels, motor control centers, and related distribution equipment.

The A2K35R is suited for use in 250-volt AC electrical systems requiring Class RK1 overcurrent protection. Typical applications include motor branch circuits, feeder circuits, and panel board protection in light commercial and industrial settings where current-limiting performance is required. The Class RK1 designation indicates a rejection-style fuse that cannot be installed in holders designed for lower-performing fuse classes, helping ensure proper replacement in the field.

Key Features

• 250-volt AC voltage rating for branch circuit and feeder protection
• 35-amp current rating with time-delay characteristics to handle motor inrush
• Class RK1 current-limiting design for high fault-current interruption capacity
• Rejection-style form factor prevents substitution with lower-rated fuse classes
• Suitable for motor, transformer, and general distribution circuit protection

Compatibility

Designed as an OEM-style replacement for Class RK1 fuse holders and fusible disconnects rated for 250 volts and 35 amps.

Installation Notes

Installation and replacement should be performed by a qualified electrician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before removing or installing fuses. Use an appropriately rated fuse puller when servicing energized enclosures where permitted. Verify that the replacement fuse class, voltage rating, and amperage match the circuit requirements before installation.

Technical Specifications

• Voltage Rating: 250 volts
• Amperage Rating: 35 amps
• Fuse Class: RK1
• UPC: 78200191512

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: A2K35R