Product Description
The TRS70R is a 70 Amp, 600 Volt (AC or DC) Class RK5 time-delay fuse from the Tri-Onic® TRS-R series. It’s engineered for robust over-current protection in industrial, commercial and general-purpose electrical systems. Its dual-element, time-delay and current-limiting design safely handles motor and transformer inrush currents while protecting equipment from short-circuits and overloads.
This fuse is well-suited for applications such as motor circuits, feeders, transformers, service entrance equipment, branch circuits, and panelboards — providing reliable protection and minimizing risk of fault damage.
Product Details
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Brand: Ferraz Shawmut / Mersen
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Series: Tri-Onic® TRS-R
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Model / Part Number: TRS70R
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Fuse Class: RK5
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Current Rating: 70 A
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Voltage Rating: 600 V AC / 600 V DC Fuse Type: Dual-element, Time-Delay, Current-Limiting Cartridge Fuse
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Interrupt Rating: 200 kA (AC) / 20 kA or 100 kA (depending on DC rating and amp range)
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Body Style / Size: Cylindrical cartridge — approximately 1-5/16″ diameter × 7-7/8″ length (about 34 mm × 200 mm)
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Terminal Type: Blade / Clip (knife-blade style for hold-down mounting)
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Approvals: UL 248-12, CSA C22.2 No. 248.12
- Condition: Used
Key Features
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Dual-element time-delay design — handles motor start-up and transformer inrush currents without nuisance blowouts.
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Current-limiting construction — reduces fault energy and protects downstream equipment from damage.
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High interrupt rating (200 kA) — offers high safety margin for industrial short-circuit protection.
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Rejection-style design — helps prevent incorrect replacements when used with proper fuse blocks.
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Durable fiberglass/polyester body — stable in harsh industrial environments and supports reliable long-term performance.
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Applicable for both AC and DC systems — offers flexibility for various installations.
TRS70R-UA-YAG.
