Low Voltage, Branch Circuit Rated Fuses
Low-Peak® dual-element, time-delay fuses
Typical Applications
LPN-RK_SP (250V) Class RK1
• Large Distribution Switchboards
LPS-RK_SP (600V) Class RK1
• Power Panelboards
• Motor Control Centers
Now Available
With Optional
Indication
• Machinery Disconnect Switches
LPN Catalog Numbers (Amps) (250Vac/125Vdc)
1
1
LPN-RK- ⁄10SP
LPN-RK-3 ⁄
LPN-RK-4SP
LPN-RK-4 ⁄
LPN-RK-5SP
LPN-RK-5 ⁄10SP
LPN-RK-6SP
LPN-RK-6 ⁄
LPN-RK-8SP
LPN-RK-9SP
LPN-RK-10SP
LPN-RK-12SP
LPN-RK-15SP
LPN-RK-17 ⁄
LPN-RK-20SP
LPN-RK-25SP
LPN-RK-30SP
LPN-RK-35SP**
LPN-RK-40SP**
LPN-RK-45SP**
LPN-RK-50SP**
2
SP
LPN-RK-60SP**
LPN-RK-70SP****
LPN-RK-80SP**
LPN-RK-90SP**
LPN-RK-100SP**
LPN-RK-110SP**
LPN-RK-125SP**
LPN-RK-150SP**
LPN-RK-175SP**
LPN-RK-200SP**
LPN-RK-225SP**
LPN-RK-250SP**
LPN-RK-300SP**
LPN-RK-350SP**
LPN-RK-400SP**
LPN-RK-450SP**
LPN-RK-500SP**
LPN-RK-600SP**
15
LPN-RK- ⁄100SP
Specifications
Description:
2
1
LPN-RK- ⁄10SP
2SP
3
LPN-RK- ⁄10SP
Current-limiting, dual-element,
time-delay fuse; 10 seconds
(minimum) at 500% rated
amps (8 seconds for 0-30A
sizes). Now available with
optional permanent indication
on select ratings (see Catalog
Numbers table).
4
6
LPN-RK- ⁄10SP
1
LPN-RK- ⁄
2SP
6
1
LPN-RK- ⁄10SP
4SP
8
LPN-RK- ⁄10SP
LPN-RK-1SP
LPN-RK-1 ⁄
LPN-RK-1 ⁄
LPN-RK-1 ⁄10SP
LPN-RK-1 ⁄10SP
LPN-RK-1 ⁄10SP
LPN-RK-2SP
LPN-RK-2 ⁄
1
8
SP
1
4SP
Dimensions: See page 11 for Class RK1 dimensions.
Construction: Copper fuse element.
Ratings:
4
6
1
2SP
8
Volts LPN-RK:
— 250Vac (or less)
— 125Vdc (0-60A)
— 250Vdc (70-600A)
LPS-RK:
1
4
SP
1
LPN-RK-2 ⁄
LPN-RK-2 ⁄10SP
LPN-RK-3SP
2SP
8
2
LPN-RK-3 ⁄10SP
— 600Vac (or less)
— 300Vdc
*Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses.
**Available with optional permanent indication. To order, place “I” at end of Catalog Number.
Example: LPN-RK-35SPI.
0-60A fuses available with Nickel plate option. (Ex: LPS-RK30SPNP) 70-600A fuses available
with Tin plate option. Example: LPS-RK-100SP-TP.
1
Amps — ⁄10-600A
IR — 300,000A RMS Sym.
— 100,000A dc
Agency Information: CE, UL Listed – Special Purpose*,
Guide JFHR, File E56412, CSA Certified (200,000 AIR),
Class RK1 per CSA C22.2, No. 248.12, Class 1422-02, File
53787.
LPS Catalog Numbers - (Amps) (600Vac/300Vdc)
1
1
LPS-RK- ⁄10SP
LPS-RK-2 ⁄
2
SP
LPS-RK-12SP**
LPS-RK-110SP**
LPS-RK-125SP**
2
8
LPS-RK- ⁄10SP
LPS-RK-2 ⁄10SP LPS-RK-15SP**
3
1
LPS-RK- ⁄10SP
LPS-RK-3SP
LPS-RK-17 ⁄
2
SP** LPS-RK-150SP**
4
2
LPS-RK- ⁄10SP
LPS-RK-3 ⁄10SP LPS-RK-20SP**
LPS-RK-175SP**
LPS-RK-200SP**
LPS-RK-225SP**
LPS-RK-250SP**
LPS-RK-300SP**
LPS-RK-350SP**
LPS-RK-400SP**
LPS-RK-450SP**
LPS-RK-500SP**
LPS-RK-600SP**
1
1
LPS-RK- ⁄
2
SP
LPS-RK-3 ⁄
2
SP
LPS-RK-25SP**
LPS-RK-30SP**
LPS-RK-35SP**
LPS-RK-40SP**
Features and Benefits
6
LPS-RK- ⁄10SP
LPS-RK-4SP
• Separate overload and short-circuit elements provide time
delay for close sizing of high inrush loads linked with K1
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.
• 300,000A 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.
8
1
LPS-RK- ⁄10SP
LPS-RK-4 ⁄
2
SP
LPS-RK-1SP
LPS-RK-5SP
1
6
LPS-RK-1 ⁄
8
SP LPS-RK-5 ⁄10SP LPS-RK-45SP**
1
LPS-RK-1 ⁄
4
SP LPS-RK-6SP** LPS-RK-50SP**
4
1
LPS-RK-1 ⁄10SP LPS-RK-6 ⁄
4
SP** LPS-RK-60SP**
1
LPS-RK-1 ⁄
2
SP LPS-RK-7SP** LPS-RK-70SP**
6
LPS-RK-1 ⁄10SP LPS-RK-8SP** LPS-RK-80SP**
8
LPS-RK-1 ⁄10SP LPS-RK-9SP** LPS-RK-90SP**
1
LPS-RK-2 ⁄
4
SP LPS-RK-10SP** LPS-RK-100SP**
*Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses.
**Available with optional permanent replace fuse indication. To order, place “I” at end of
Catalog Number. Example: LPS-RK-15SPI.
Data Sheets: LPN-RK — 1003 (0-60) and 1004 (70-600)
LPN-RK with indication — 1066 (70-600)
LPS-RK — 1001 (0-60) and 1002 (70-600)
LPS-RK with indication — 1061 (0-60) and
1064 (70-600)
Recommended Fuse Holders & Blocks For Class RK1 600V
& 250VFuses
• See page 9
For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp
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