Product Description
The Bussmann LPJ-70SP is a dual-element, time-delay fuse engineered for industrial and commercial electrical systems requiring reliable overload and short-circuit protection. As part of the Low-Peak Class J line, the LPJ-70SP provides superior protection for branch circuits, motor feeders, transformers, and control panels. Its design handles inrush currents from motors or transformers without nuisance trips while offering high interrupting capacity for fault conditions.
Product Details
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Brand: Bussmann (Cooper Bussmann / Eaton)
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Model / Part Number: LPJ-70SP
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Fuse Type: Dual-Element, Time-Delay, Current-Limiting Cartridge Fuse
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Fuse Class: Class J, Low-Peak
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Amperage Rating: 70 A
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Voltage Rating: 600 V AC / 300 V DC
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Interrupt Rating: 300 kA AC (RMS Symmetrical) / 100 kA DC
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Dimensions: ~1.13″ diameter × 4.63″ length
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Body Style: Cylindrical cartridge fuse with bolt-blade ends for panel or holder mounting
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Approvals: UL listed, CSA certified (meets Class J / Class 1422-02)
- Condition: Used
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Typical Applications: Branch circuits, power distribution panels, motor feeders, industrial machinery, transformers, HVAC, general electrical systems.
Key Features
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Dual-element, time-delay design provides ride-through of temporary overloads or inrush currents — ideal for motors and transformers.
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High interrupting rating (300 kA AC) ensures safe clearing of high-fault currents — enhances system safety and reliability.
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Current-limiting performance reduces let-through energy during fault events — protects downstream equipment from thermal and magnetic stress.
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Class J compact cartridge size — saves panel space and simplifies installation or replacement.
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Lower resistance and cooler operation under load — reduces power loss and heat compared to older or oversized fuses.
LPJ70SP-UA-YAG
