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The MERSEN TRS5-6/10R is a time delay fuse rated at 5-6/10 amps and 600 volts, built to Class RK5 standards. It is designed to protect motors, transformers, and other inductive loads from overcurrent faults while tolerating normal startup inrush currents without nuisance tripping. The time delay characteristic makes it well suited for motor branch circuit protection where brief, high-current surges occur at startup. Licensed electricians and HVAC technicians install this fuse type during new equipment installations and service calls requiring fuse replacement. The package contains 10 fuses and weighs 2.1 pounds.
This fuse is used in commercial and residential electrical systems where Class RK5 time delay protection is specified. Typical applications include motor control panels, HVAC equipment disconnects, compressor circuits, and industrial control wiring. The 600-volt rating makes it suitable for both single-phase and three-phase branch circuits operating within that voltage range. It fits standard RK5-class fuse holders and pullout disconnects commonly found in residential and light commercial service panels and equipment disconnects.
Designed as a Class RK5 time delay replacement fuse for use in standard RK5-rated fuse holders and pullout disconnect switches rated at 600 volts or less.
Installation should be performed by a licensed electrician in accordance with NEC requirements for overcurrent protection devices. Always de-energize and lock out the circuit before removing or installing fuses. Verify the fuse holder is rated for Class RK5 fuses and that the circuit voltage and amperage do not exceed the fuse ratings. Never replace a fuse with a higher amperage rating than what the circuit is designed for.
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