Product Description
The Bussmann FRN‑R‑70 is a 70 Amp, Class RK5 dual‑element time‑delay fuse engineered for dependable overcurrent protection in industrial, commercial, and heavy‑duty electrical systems. Its current‑limiting design interrupts high fault currents quickly to protect wiring and equipment, while the time‑delay feature tolerates harmless startup surges such as motor inrush. Suitable for use in motor control centers, power panels, feeders, and machinery disconnects, this fuse offers reliable protection and long‑lasting performance.
Product Details
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Brand: Bussmann (Fusetron)
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Model / Part Number: FRN‑R‑70
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Type / Class: Current‑Limiting, Time‑Delay, Class RK5
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Amperage Rating: 70 A
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Voltage Rating: 250 V AC / 125 V DC
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Interrupt Rating: 200 kA at 250 VAC, 20 kA at 125 VDC
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Fuse Elements: Dual
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Response Time: ~10 sec at 500% rated current
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Body Style: Cylindrical cartridge
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Mounting: Blade end × blade end, holder mount
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Condition: Used
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Applications: Motors, feeders, control panels, disconnects, industrial electrical circuits
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Certifications: UL 248‑12 (Class RK5), CSA C22.2 No. 248.12, CE compliant
Key Features
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Dual‑element time‑delay design tolerates temporary overloads and inrush currents
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Current‑limiting action reduces let‑through energy during short circuits
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High interrupt rating for heavy‑duty, high‑fault environments
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Compatible with standard Class RK5 fuse holders and panels
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Suitable for motor control centers, feeders, and industrial protection circuits
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Rugged, long‑lasting construction
IS.04222024.65
