Littelfuse KLK.500 600V Midget Fuse 0.5A

Product Description

The LITTELFUSE KLK.500 is a 600-volt midget fuse rated at 0.5 amps, designed for current-limiting protection in control circuits and low-amperage branch circuits. This fast-acting fuse interrupts fault current before it can damage sensitive downstream components such as contactors, transformers, and solid-state devices. The compact midget form factor fits 13/32-inch by 1-1/2-inch fuseholders commonly found in industrial control panels and HVAC equipment. Licensed electricians and HVAC technicians install this fuse as a component-level overcurrent protection device wherever the KLK series is specified.

The KLK.500 is suited for residential and light commercial control-circuit applications where a 600-volt, sub-1-amp current-limiting fuse is required. Typical installations include transformer primary protection, low-voltage control circuits, motor control centers, and HVAC unit control boards that require midget fuse protection. The fuse is well-matched to fuseholders and fuse blocks accepting the standard 13/32 by 1-1/2 inch midget fuse body.

Key Features

• 600-volt AC rating suitable for standard control-circuit voltages
• 0.5-amp (1/2 amp) current rating for low-amperage circuit protection
• Current-limiting design reduces let-through energy during fault conditions
• Midget form factor fits standard 13/32 by 1-1/2 inch fuseholders
• Fast-acting response protects sensitive solid-state and electronic components

Compatibility

Designed as an OEM-style replacement midget fuse for use in any fuseholder or fuse block rated for 13/32 by 1-1/2 inch current-limiting midget fuses at 600 volts.

Installation Notes

Installation should be performed by a licensed electrician or qualified HVAC technician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before replacing a fuse. Verify the replacement fuse matches the voltage and amperage rating of the original. Do not substitute a higher-amperage fuse to restore a tripped circuit without first identifying and correcting the root cause of the overcurrent condition.