Eaton LPN-RK-150SP-TP fuse - RK1, 300 kAIC, 250 VAC
Part Number: LPN-RK-150SP-TP
Quick Summary
LPN-RK-150SP-TP fuse provides motor and control circuit protection for industrial power distribution. This helps engineers avoid nuisance trips during starts and maintains uptime by selecting a time-delay, current-limiting solution. RoHS compliant with Class RK1 designation supports regulatory alignment and predictable panel coordination. In Eaton Bussmann Series installations, the tin-plated contacts and robust interrupt ratings deliver reliable protection while enabling straightforward procurement and faster service life improvements for zero-downtime systems.
Product Information
Extended Description
LPN-RK-150SP-TP Eaton: Eaton Bussmann series LPN-RK fuse, Low-peak fuse, 150 A, RK1, Non-indicating, Blade end x blade end, Time delay, Current-limiting, 300 kAIC at 250 V, 100 kAIC at 250 Vdc, Tin-plated, Standard
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPN-RK-150SP-TP
UPC
051712752350
Product Length/Depth
7.13 in
Product Height
1.61 in
Product Width
1.61 in
Product Weight
0.69 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Amperage Rating
150 A
Interrupt rating
300 kAIC at 250 Vac 100 kAIC at 250 Vdc
Voltage rating
250 Vac, 250 Vdc
Fuse type
Time delay Current-limiting
Material
Tin-plated
Packaging type
Standard
Class
Class RK1
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Special features
Indicating, High in-rush current motor protection
LPN-RK-150SP-TP~CLASS RK1 FUSE TIN PLATED
LPN-RK-150SP-TP~CLASS RK1 FUSE TIN PLATED
Bussmann series Fuseology
Eaton Specification Sheet - LPN-RK-150SP-TP
The 150 A rating paired with a time-delay, current-limiting fuse design delivers motor protection that tolerates startup inrush without sacrificing short-circuit containment, reducing nuisance trips and lowering maintenance costs. This directly improves line efficiency and equipment availability in drives and control panels. With a 300 kAIC interrupt rating at 250 VAC and 100 kAIC at 250 Vdc, the fuse withstands high-energy faults, safeguarding downstream circuits and critical drives in industrial machinery and power distribution panels. Tin-plated construction minimizes contact resistance and corrosion risk, extending service life in harsh environments and simplifying field replacements. The blade-end x blade-end configuration and standard packaging streamline installation, enabling rapid upgrades across legacy Eaton Bussmann Series arrays and minimizing downtime during panel refits. RoHS compliance supports global manufacturing footprints and regulatory alignment, while RK1 class recognition ensures predictable coordination with fuse blocks and protective schemes. Overall, this fuse combines compact form with robust protection, supporting uptime, safety, and cost-of-ownership reductions in automated systems.
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FAQs
The LPN-RK-150SP-TP uses blade-end x blade-end connections, designed for standard fuse holders in control panels and motor starters. Its 7.13 in length and 1.61 in width fit common DIN and backplane enclosures, enabling quick upgrades to existing Bussmann Series assemblies. This compatibility minimizes rewiring and reduces installation time while preserving protection level.
The 150 A rating supports protection for typical motor control circuits and feeders, while the 300 kAIC interrupt rating at 250 VAC ensures the fuse can reliably interrupt high-energy faults. This combination protects downstream components, reduces panel damage during faults, and supports longer equipment life in machines with high inrush and startup currents.
Best suited for motor protection in drives, motor starters, and power distribution panels within industrial machinery. The RK1 class designation aligns with standard protective coordination, while time-delay and current-limiting features accommodate motor inrush without nuisance trips. It’s ideal for panel upgrades and new builds using Eaton Bussmann Series components.
Yes, the fuse is RoHS compliant, meaning it meets restrictions on hazardous substances for safer environmental and regulatory performance. This supports global manufacturing requirements and helps ensure compliance across facilities, especially in regulated industries seeking sustainable, component-level compliance.
Expect minimal maintenance due to long-term reliability from tin-plated contacts and a robust time-delay, current-limiting design. The blade-end configuration simplifies replacements, reducing maintenance labor. Although the unit is a passive protective device, its reliable interruption ratings and regulatory compliance support lower total cost of ownership by reducing downtime and replacement frequency in critical motor circuits.