Littelfuse KLNR002 Class RK1 Time-delay Fuse 250V

Product Description

The LITTELFUSE KLNR002 is a Class RK1 time-delay fuse rated at 250 volts, designed for use in industrial and commercial electrical protection applications. Class RK1 fuses provide a high degree of current limitation and offer superior short-circuit protection compared to standard Class K fuses. The time-delay characteristic allows the fuse to withstand temporary inrush currents without nuisance tripping, making it well suited for motor and transformer circuits. Licensed electricians and electrical contractors are the primary installers of this fuse type.

The KLNR002 is used in motor branch circuits, control panels, and distribution equipment where reliable overcurrent protection is required. The RK1 classification means it meets tighter dimensional and performance standards, restricting interchangeability with lower-rated fuse classes for added safety. This fuse is appropriate for residential, commercial, and light industrial electrical systems requiring 250-volt rated overcurrent protection.

Key Features

• Class RK1 rating provides superior current limitation and short-circuit protection
• Time-delay design tolerates temporary motor inrush currents without nuisance tripping
• 250-volt voltage rating suitable for single-phase and three-phase distribution circuits
• Restrictive RK1 footprint prevents substitution with lower-rated fuse classes
• Suitable for motor branch circuits, control panels, and distribution equipment

Compatibility

Designed as an OEM-style replacement for Class RK1 fuse holders and fusible disconnect switches rated at 250 volts in residential, commercial, and light industrial electrical systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and lockout/tagout the circuit before replacing any fuse. Verify the fuse holder is rated for Class RK1 fuses and matches the voltage and amperage requirements of the circuit. Do not substitute a fuse of a different class or higher ampere rating.

Technical Specifications

• Voltage Rating: 250 volts
• Fuse Class: RK1
• Response Type: Time-Delay
• UPC: 07945828041

Standard Information

• Brand: LITTELFUSE
• Manufacturer Part Number: KLNR002