Eaton LPNRK2SPNP Fuse - Class RK1 Time-Delay
Part Number: LPNRK2SPNP
Quick Summary
LPNRK2SPNP is an Eaton Bussmann series fuse designed to protect large distribution switchboards, power panelboards, and motor control centers. For engineers facing nuisance trips and space constraints in electrical rooms, this device delivers reliable time-delay protection with a compact 3x3x11 inch footprint. RoHS compliant and aligned with Class RK1 protection, it also features nickel-plated caps for added durability in demanding environments. With a 2 A amperage rating and current-limiting performance, it helps ensure fast fault clearance without unnecessary disconnects, while offering seamless compatibility within the Eaton Bussmann family to streamline procurement and maintenance.
Product Information
Extended Description
LPNRK2SPNP Eaton: Eaton Bussmann series LPN-RK fuse, Nickel plated caps, Large distribution switchboards, Power panelboards, Motor control centers, 2 A, Class RK1, Non-indicating, Time delay, Current-limiting, Standard
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPNRK2SPNP
UPC
051712608596
Product Length/Depth
3 in
Product Height
11 in
Product Width
3 in
Product Weight
2.8 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Certifications
Contact Manufacturer
Amperage Rating
2 A
Fuse type
Time delay Current-limiting
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
Special features
Nickel plated caps
LPNRK2SPNP~LOW PEAK NI PLATED CAPS
LPNRK2SPNP~LOW PEAK NI PLATED CAPS
Bussmann series Fuseology
Eaton Specification Sheet - LPNRK2SPNP
Time-delay, current-limiting design reduces nuisance trips during motor start-ups and inrush events, protecting conductors while maintaining uptime in control centers. This yields measurable efficiency gains in plant throughput and minimizes unplanned downtime. The 2 A rating protects specific circuit segments without over-tripping, making it ideal for motor control centers and large panelboards where selective protection matters. Nickel-plated caps provide corrosion resistance and durability in harsh distribution environments, extending fuse life and reducing replacement costs. Class RK1, non-indicating design simplifies integration with standard gear and mounting hardware, enabling quick swaps within RK1-compatible platforms. RoHS compliance supports multi-region deployments and supplier qualifications, while the standard packaging and footprint fit compact installations in space-limited distribution bus sections. Overall, this fuse balances protection, reliability, and procurement simplicity for modern electrical protection schemes.
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FAQs
When installing the LPNRK2SPNP, verify compatibility with RK1 fuse holders in your switchboard or panelboard. Ensure clearances around the 3 in x 3 in x 11 in housing, secure mounting to minimize vibration, and use standard packaging for stocking efficiency. The nickel-plated caps provide durability in exposed environments, and the 2 A rating fits light-to-moderate protection regimes common in feeder circuits and MCCs.
The fuse features time-delay operation with current-limiting capability, reducing nuisance trips during motor start-up while protecting conductors from short-circuit faults. With a 2 A rating, it protects small feeders within MCCs without unnecessary disconnection. Its RK1 class compatibility ensures it aligns with common MCC and panelboard protection schemes, and the RoHS compliance simplifies regional procurement.
Yes, LPNRK2SPNP is RoHS compliant, supporting restricted-use materials in electronics and electrical systems across multiple regions. While certifications beyond RoHS are listed as Contact Manufacturer, RoHS compliance ensures conformity with environmental and regulatory expectations for modern electrical protection devices used in broad industrial deployments.
LPNRK2SPNP is designed for compatibility with Eaton Bussmann LPN-RK fuse assemblies and RK1-rated gear. It fits large distribution switchboards, power panelboards, and motor control centers, offering seamless integration with standard RK1 fuse holders and enclosure layouts. The non-indicating design simplifies visual assessment and reduces misinterpretation during maintenance.
The 2 A current-limiting, time-delay design reduces nuisance trips, improving system uptime and lowering maintenance interventions. Nickel-plated caps improve durability in harsh environments, reducing replacement costs. Standard packaging and a compact footprint streamline stocking and replacement within existing Eaton Bussmann ecosystems, delivering predictable maintenance planning and a favorable total cost of ownership.