Eaton LPN-RK-80SP-TP Fuse - Class RK1 Time-Delay
Part Number: LPN-RK-80SP-TP
Quick Summary
The Eaton LPN-RK-80SP-TP fuse is a high-reliability protection device for industrial control panels and motor drives. Engineers often wrestle with nuisance trips and downtime when balancing inrush currents with load protection; this low-peak, time-delay fuse helps balance selectivity and safety. Although formal certifications aren’t listed in the data, the design is Class RK1 with a high interrupt rating that supports dependable protection in demanding environments. The tin-plated contacts and standard RK1 form factor simplify replacements in existing Bussmann RK1 assemblies, while the 250 V AC/DC rating broadens applications in automation and distribution. This combination translates to reduced maintenance and improved uptime for automation projects and power-control architectures.
Product Information
Extended Description
LPN-RK-80SP-TP Eaton: Eaton Bussmann series LPN-RK fuse, Low-peak fuse, 80 A, RK1, Non-indicating, Time delay, Current-limiting, 100 kAIC at 250 Vdc, 300 kAIC at 250 V, Tin-plated, Standard, 250 V, 250 Vdc
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPN-RK-80SP-TP
UPC
051712752305
Product Length/Depth
5.88 in
Product Height
1.1 in
Product Width
1.1 in
Product Weight
1.5 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
80 A
Interrupt rating
100 kAIC at 250 Vdc 300 kAIC at 250 Vac
Voltage rating
250 Vac, 250 Vdc
Fuse type
Time delay Current-limiting
Material
Tin-plated
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
LPN-RK-80SP-TP~CLASS RK1 FUSE TIN PLATED
LPN-RK-80SP-TP~CLASS RK1 FUSE TIN PLATED
Bussmann series Fuseology
Eaton Specification Sheet - LPN-RK-80SP-TP
Feature: 80 A amperage rating with very high interrupt ratings (100 kAIC at 250 Vdc and 300 kAIC at 250 Vac) enables protective fast-clearing without compromising system availability. Business Impact: Minimizes costly fault outages while allowing controlled inrush during startup. Application: 80 A circuits in industrial control panels and motor drives where reliable protection and selective coordination are essential. Feature: Time-delay, current-limiting fuse characteristics provide tolerance for motor inrush and transient currents. Business Impact: Reduces nuisance trips, improving equipment uptime and productivity. Application: Starting and running loads in automation lines where inrush management is critical. Feature: Class RK1, non-indicating design with tin-plated material. Business Impact: Streamlines panel integration and improves contact longevity in corrosive environments, lowering maintenance needs. Application: Replacement in standard Bussmann RK1 assemblies within electrical protection and circuit-control systems. Feature: 250 Vac / 250 Vdc voltage rating with robust mechanical form factor. Business Impact: Broadens compatibility across AC/DC control circuits, enabling a single protection solution for mixed electrical environments. Application: Control cabinets, power distribution, and automation racks. Feature: Standard packaging and catalog availability. Business Impact: Simplifies stocking, procurement, and field service, reducing lead times and total cost of ownership. Application: Maintenance programs and large-scale automation rollouts.
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FAQs
The LPN-RK-80SP-TP is designed for standard Bussmann RK1 form-factor assemblies. It fits typical RK1 fuse holders and panel adapters used in industrial control panels, allowing straightforward replacement without modifying enclosures or wiring. Ensure the panel rating supports 250 V AC/DC and verify that the holder accommodates an 80 A, low-peak, time-delay fuse.
Key ratings include 80 A amperage, 250 Vac and 250 Vdc voltage ratings, and high interrupt ratings of 100 kAIC at 250 Vdc and 300 kAIC at 250 Vac. The fuse type is time-delay with current-limiting characteristics, suitable for controlled startup and protection against short circuits in automation circuits.
Yes. The time-delay, current-limiting design supports motor startup inrush while providing robust short-circuit protection. Its RK1 classification and tin-plated contacts help ensure reliable performance in motor-control cabinets and automation racks, reducing nuisance trips and enabling selective coordination with other protective devices.
The data specifies Class RK1 as the fuse classification. No formal certifications (such as CE or SIL) are listed in the provided data. For formal compliance confirmation, refer to Eaton’s specifications and the LPN-RK-80SP-TP datasheet, which may outline any additional approvals.
Tin-plated contacts improve corrosion resistance and long-term reliability, reducing maintenance frequency. The high interrupt ratings protect system components, lowering downtime costs after faults. Standard packaging and availability through catalogs simplify stocking, improving procurement efficiency and total cost of ownership in ongoing automation projects.