Eaton LPN-RK-175SPI Fuse - RK1 Class, 300 kA at 250 VAC
Part Number: LPN-RK-175SPI
Quick Summary
The Eaton LPN-RK-175SPI fuse provides reliable overcurrent protection for motor drive and power-distribution circuits. Engineers frequently wrestle with nuisance trips during motor start-up and inrush events; this time-delay, dual-element design helps tolerate brief surges while still clearing faults quickly. It carries Class RK1 characteristics and CE marking, aligning with common industrial protection standards. Built for compatibility with Bussmann series fixtures and standard RK1 holders, it supports straightforward installation and predictable protection in panel boards, motor starters, and conveyors. By combining targeted protection with industry-accepted certification, it helps reduce downtime, extend equipment life, and simplify compliance reporting for automation projects.
Product Information
Extended Description
LPN-RK-175SPI Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 175 A, indicating fuse, interrupting rating of 300 kA at 250 Vac
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPN-RK-175SPI
UPC
051712626774
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
CE Marked
Amperage Rating
175 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
Number of elements
Dual
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating With Indicator
Quantity
1
Special features
Non-indicating, High in-rush current motor protection
Bussmann series Class J Low-Peak fuse 70-600A data sheet No. 1007
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Feature: Time-delay, dual-element design. Business impact: Tolerates motor inrush and short-term surges without nuisance tripping, enabling smoother startup sequences and reduced downtime. Application: Motor control centers and drive panels where inrush currents are common and reliability is critical. Feature: Current-limiting capability. Business impact: Limits fault current energy, safeguarding cables and downstream components while accelerating fault clearance. Application: Panels wiring in conveyors and pumps where fault energy compliance matters. Feature: Class RK1, CE marked. Business impact: Aligns with widely adopted industrial protection standards, simplifying compliance documentation and supplier qualification. Application: Industrial automation installations requiring certified protection devices. Feature: Time-delay, dual-element, 175 A rating. Business impact: Provides precise protection for mid-range motor loads with predictable performance under load transients. Application: Medium-sized motors and machinery in manufacturing lines. Feature: Footprint and compatibility. Business impact: 7.13 in length with a compact 1.61 in width and height fits standard RK1 fuse blocks, easing retrofit and replacements. Application: Retrofit projects and panel upgrades where space is a constraint. Feature: Indication options. Business impact: Non-indicating or with indicator variants support different monitoring strategies, reducing maintenance overhead. Application: Remote monitoring setups and service-friendly installations.
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FAQs
The LPN-RK-175SPI is a Class RK1 fuse with a 7.13 in length and a 1.61 in footprint, designed for RK1 fuse blocks and standard Bussmann series installations. Verify enclosure clearance and mounting hardware to ensure a secure fit, and confirm alignment with your panel’s RK1 mounting scheme for reliable operation.
The fuse has an interrupt rating of 300 kAIC at 250 VAC and 100 kAIC at 250 VDC, with a voltage rating of 250 VAC and 250 VDC. These ratings support robust protection for motor drives and power circuits while enabling safe fault clearing in industrial environments.
Key features include time-delay operation and dual-element construction with current-limiting characteristics, ideal for handling motor start-up inrush and transient faults. Use in motor starters, conveyors, pumps, and other automation equipment where brief surges are normal and reliable fault clearance is needed to protect wiring and components.
The LPN-RK-175SPI carries CE marking and is classified as RK1. This combination supports compliance with common industrial safety standards and simplifies qualification within European and global automation projects. If additional certifications are required, verify your specific regulatory needs against project specifications.
The fuse measures 7.13 inches in length with a footprint of 1.61 by 1.61 inches and weighs 0.69 lb. This compact size facilitates installation in space-constrained panels and allows straightforward replacement without reconfiguring existing mounting arrangements.