Product Description
The TRS350R fuse is a 350 A, 600 V AC/DC, dual-element, time-delay fuse built for industrial overcurrent protection. As part of the Tri-Onic TRS-R series, this Class RK5 fuse combines time-delay capability with current-limiting performance — making it ideal for motor circuits, feeders, service-entrance equipment, transformers, and general industrial power distribution. Its design safely handles temporary inrush or startup currents while protecting downstream equipment from overloads or fault conditions.
Product Details
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Brand: Ferraz Shawmut / Mersen
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Model / Part Number: TRS350R
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Amperage Rating: 350 A
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Voltage Rating: 600 V AC / 600 V DC
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Fuse Class: RK5 (Class RK5 — time-delay, current-limiting)
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Fuse Type: Time-Delay, Current-Limiting, Dual-Element (Tri-Onic)
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Interrupt Rating: 200 kA (AC) / 100 kA (DC)
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Body Size: Approx. 2.56″ diameter × 11.63″ length (2-9/16" × 11-5/8")
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Mounting / Terminals: Blade / Clip style mount
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Approvals: Meets UL 248-12 and CSA C22.2 standards.
- Condition: Used
Key Features
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Dual-element time-delay design tolerates motor startup and transformer inrush currents without nuisance trips.
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Current-limiting – reduces fault energy and protects downstream components during short circuits or overloads.
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Rated for both AC and DC operation (600 VAC / 600 VDC), offering versatility for various industrial systems.
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High interrupt capacity (200 kA AC / 100 kA DC) — suitable for heavy-duty circuits and feeders.
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Rejection-style fuse — helps prevent incorrect fuse replacements when used with compatible fuse holders.
IS.06182024.11
