Mersen TRS2-1/2R Time-delay Fuse 2.5A 600V RK5

Product Description

The MERSEN TRS2-1/2R is a time-delay, dual-element fuse rated at 2.5 amps and 600 volts, classified under the RK5 fuse standard. It is designed to protect electrical circuits and equipment from overcurrent conditions while tolerating temporary inrush currents common in motor-driven and transformer-fed loads. The time-delay element allows brief startup surges to pass without nuisance tripping, while the fuse still clears sustained faults quickly. Licensed electricians and HVAC technicians install this type of fuse in control panels, disconnect boxes, and equipment protection circuits where RK5-class overcurrent protection is required.

This fuse is suited for residential and light commercial electrical systems where RK5-class protection is specified. Typical applications include motor branch circuits, HVAC equipment disconnects, and control circuit protection. The 600-volt rating makes it appropriate for both single-phase and three-phase systems operating at standard distribution voltages up to 600 volts. Its compact form factor fits standard RK5-compatible fuse holders and pull-out disconnect blocks.

Key Features

• 2.5-amp continuous current rating with time-delay, dual-element design
• 600-volt maximum voltage rating suitable for single-phase and three-phase circuits
• RK5 class construction for use in RK5-rated fuse holders and disconnects
• Time-delay element tolerates motor inrush and transformer magnetizing currents
• Dual-element design provides both overload and short-circuit protection

Compatibility

Designed as an OEM-style replacement for RK5-class time-delay fuses in residential and commercial electrical panel and disconnect applications rated up to 600 volts and 2.5 amps.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before replacing any fuse. Verify that the replacement fuse amperage, voltage rating, and class match the original equipment specification before installing. Do not install a higher-amperage fuse than what the circuit is designed for, as this defeats overcurrent protection.

Technical Specifications

• Amperage: 2.5 amps
• Voltage Rating: 600 volts
• Fuse Class: RK5
• Fuse Type: Time-Delay, Dual-Element
• UPC: 78200174866

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: TRS2-1/2R