LPN-RK and LPS-RK Low-Peak

Ultimate Protection 250Vac/dc, 600Vac/300Vdc, 1/10-600A, Dual Element, Time-Delay Fuses

Class RK1 dual element, current-limiting, time-delay fuses available with optional open fuse indication on select ratings (see data sheets).

1/10-60A LPN-RK Time-delay – 10 seconds (minimum) at 500% of rated current (8 seconds for 1/10 to 30A).

1/10-60A LPS-RK Time-delay – 10 seconds (minimum) at 500% of rated current.

Product Profile # 10119

Data Sheets:

Product Change Notice - fuse labeling

Agency Cards

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Catalog Number LPN-RK_SP (250V), LPS-RK_SP (600V)
Dimensions See data sheets
Volts - LPN-RK: 250Vac (up to 600A), 125Vdc (up to 60A), 250Vdc (70 to 600A)
- LPS-RK: 600Vac/300Vdc
- DC voltage ratings do not apply to indicating versions
Amps 1⁄10-600A
IR - 300kA RMS Sym.
- 100kA Vdc
Agency information - CE
- UL Listed, Guide JDDZ, File E4273
- CSA Certified, ClassRK1 per CSA C22.2, NO. 248.12, Class 1422-02, File 53787
Typical applications - Large distribution switchboards
- Power panelboards
- Motor control centers
- Machinery disconnect switches


  • Separate overload and short-circuit elements provide time delay for close sizing of high inrush loads linked with RK1 current-limitation and selective coordination ratio of 2:1 (within Low-Peak fuse family) prevents widespread blackouts
  • Inventory consolidation of Class RK1, RK5 and H fuses for reduced SKU investment and minimizing potential for misapplying fuse
  • 300kA RMS symmetrical interrupting rating provides adequate ratings without obsolescence for all electrical systems, big or small
  • Insulated end caps reduces exposure to live parts and extends air gap to distance between blades of adjacent mounted fuses or to housing