Product Description
The Fusetron FRS‑R‑40 is a 40 Amp, 600 Volt AC cartridge fuse in Class RK5, built for dependable overload and short‑circuit protection in industrial and commercial electrical systems. With its dual‑element, current‑limiting, time‑delay design, this fuse tolerates temporary inrush currents — such as those from motors or transformers — while providing fast and safe interruption under sustained faults. Ideal for motor circuits, feeders, panelboards, switchboards, and general‑purpose installations.
Product Details
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Brand: Bussmann / Fusetron
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Model / Part Number: FRS‑R‑40
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Fuse Class: RK5 (Time‑Delay, Current‑Limiting)
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Amperage Rating: 40 A
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Voltage Rating: 600 V AC
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Fuse Type: Dual‑Element, Time‑Delay, Current‑Limiting, Cartridge Fuse
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Interrupt Rating: 200 kA at 600 V AC
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Body Style / Size: ~1.06" diameter × 5.50" length, ferrule‑end x ferrule‑end connection
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Time‑Delay Characteristic: Minimum 10 seconds at 500% of rated current
Key Features
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Dual‑element time‑delay design tolerates harmless inrush currents (e.g. motors, transformers) without nuisance blowing.
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Current‑limiting action reduces let‑through energy during short‑circuit or fault events — protecting downstream wiring and equipment.
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High 200 kA interrupt rating at 600 V AC ensures heavy‑duty circuit protection, suitable for industrial and commercial uses.
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Compact RK5 cartridge format — fits standard fuse holders for easy installation or replacement.
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Suitable for a wide range of applications: motor circuits, feeders, panelboards, switchboards, and other general‑purpose loads.
FRSR40-UA2-YAG
lk.07052023.55
