Eaton LPSRK35SPNP Fuse - Time-Delay Current-Limiting
Part Number: LPSRK35SPNP
Quick Summary
LPSRK35SPNP fuse protects industrial power circuits with time-delay, current-limiting performance. Engineers often contend with startup surges that cause nuisance trips, downtime, and wasted maintenance efforts. RoHS compliant, this fuse is designed to meet RK1-class protection in control panels; consult the Eaton datasheet for CE/UL guidance as needed. Designed for easy installation, it matches standard Bussmann LPS-RK form factors and features an electrically isolated end cap for safer servicing in crowded enclosures. With a 35 A rating at 600 V and high interrupt capability, it delivers reliable protection in compact spaces, supporting improved equipment life and reduced maintenance costs.
Product Information
Extended Description
LPSRK35SPNP Eaton: Eaton Bussmann series LPS-RK fuse, Low-peak fuse, Nickel plated caps, 35 A, RK1, Non-indicating, Time delay, Current-limiting, 10 sec at 500%, 100 kAIC at 300 Vdc, 300 kAIC at 600 V, 600 V, 300 Vdc
Product Name
Eaton Bussmann series LPS-RK fuse
Catalog Number
LPSRK35SPNP
UPC
051712671590
Product Length/Depth
5.5 in
Product Height
1.06 in
Product Width
1.06 in
Product Weight
2.6 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Amperage Rating
35 A
Interrupt rating
100 kAIC at 300 Vdc 300 kAIC at 600 Vac
Response time
10 sec at 500%
Voltage rating
600 V, 300 Vdc
Fuse type
Time delay Current-limiting
Class
Class RK1
Fuse indicator
Non-indicating
Special features
Electrically isolated end cap
LPSRK35SPNP~NICKEL PLATED
LPSRK35SPNP~NICKEL PLATED
Bussmann series Fuseology
Eaton Specification Sheet - LPSRK35SPNP
Feature → Business Impact → Application: 35 A rating at 600 V (and 300 Vdc) provides robust line-side protection for industrial control panels and motor drives, reducing damage from overloads and enabling predictable maintenance planning. This rating translates to fewer unplanned outages and easier spare parts inventory in large assemblies where space is at a premium. Feature → Business Impact → Application: Time-delay, current-limiting fuse design tolerates startup surges and brief overloads up to 5x the rated current for short durations, minimizing nuisance trips during motor startups while maintaining protection, ideal for conveyor systems and press lines. Feature → Business Impact → Application: 100 kAIC at 300 Vdc and 300 kAIC at 600 VAC interrupt ratings provide strong short-circuit protection, safeguarding transformers, drives, and power distribution units from high fault currents. Feature → Business Impact → Application: Electrically isolated end caps improve safety during maintenance, simplifying wiring and reducing the risk of accidental contact in crowded panels. Feature → Business Impact → Application: RK1 class designation ensures compatibility with the Bussmann LPS-RK family, enabling straightforward retrofits and standardized spare parts across multiple control panels. Feature → Business Impact → Application: RoHS compliant materials and construction support regulatory compliance in electronics assemblies, reducing environmental risk and facilitating global deployments.
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FAQs
Yes. The LPSRK35SPNP is designed as part of the Eaton Bussmann LPS-RK family and matches RK1 form-factor standards, enabling straightforward installation in existing control panels. The unit measures 5.5 in in length with a 1.06 in width and height, and it employs an electrically isolated end cap to simplify wiring and safety checks during servicing.
Core ratings include 35 A at 600 V (and 300 Vdc), with interruption ratings of 100 kAIC at 300 Vdc and 300 kAIC at 600 VAC. The fuse is time-delay with current-limiting characteristics, allowing brief overloads (up to 5x rated) for startup surges while protecting downstream equipment from sustained faults.
Absolutely. The 35 A, 600 V rating combined with time-delay current-limiting behavior makes it well-suited for motor drives, conveyors, and other control-panel applications where startup surges occur. Its RK1 class and compact footprint support reliable protection without large panel alterations.
The LPSRK35SPNP is RoHS compliant, aligning with restrictions on hazardous substances. For broader regulatory requirements such as CE or UL, refer to the official Eaton specifications sheet to confirm certifications specific to your market and installation environment.
By reducing nuisance trips during startups and delivering predictable protection, the LPSRK35SPNP minimizes downtime and extends equipment life. Its compatibility with existing RK1 systems simplifies spares management, while its isolated end caps improve maintenance safety, lowering lifecycle costs in busy industrial facilities.