Tri-Onic TR-R current-limiting time-delay fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits. The time-delay characteristics of the TR-R safely handle harmless starting currents and inrush currents associated with today’s motors and transformers. 250 Volts 40 amps TR series.
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North American Power Fuses, Product
Optional solid-state SmartSpot indicator Time-delay for motor start-ups and transformer inrush currents without nuisance opening Current-limiting for low peak let-thru current Rejection-style design prevents replacement errors (when used with recommended fuse block)
North American Power Fuse
UL Listed to Standard 248-12, File E2137 CSA Certified to Standard C22.2, No. 248.12