Low-Peak® dual-element, time-delay fuses,LPN-RK_SP (250V) Class RK1

Low-Peak® dual-element, time-delay fuses
 

LPN-RK_SP (250V) Class RK1
Specifications
Decription:
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).
Construction:
Copper fuse element.
Ratings:
Volts- 250Vac (or less)
  o 125Vdc (0-60A)
 - 250Vdc (70-600A)
Amps- 1/10-600A
IR- 300,000A RMS Sym.
 - 100,000A dc
Agency Information:
CE, UL Listed n 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.
Features and Benefits:
@ 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.
Typical Applications:
@ Large Distribution Switchboards
@ Power Panelboards
@ Motor Control Centers
@ Machinery Disconnect Switches
Note:
*Meets all performance requirements of UL Standard 248-12 for Class RK1 fuses.
**Available with optional permanent indication. To order, place iI@ 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.
Catalog Number Amps A B Note
LPN-RK-1/10SP 1/10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-15/100SP 15/100 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-2/10SP 2/10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-3/10SP 3/10 2 (50.8) 0.56 (14.3) LPN Catalog Numbers (Amps) (250Vac/125Vdc)CLASS
RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-4/10SP 4/10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-1/2SP 1/2 2 (50.8) 0.56 (14.3) LPN Catalog Numbers (Amps) (250Vac/125Vdc)
LPN-RK-6/10SP 6/10 2 (50.8) 0.56 (14.3) LPN Catalog Numbers (Amps) (250Vac/125Vdc)
LPN-RK-8/10SP 8/10 2 (50.8) 0.56 (14.3) LPN Catalog Numbers (Amps) (250Vac/125Vdc)
LPN-RK-1SP 1 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-1 1/8SP 1 1/8 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-1 1/4SP 1 1/4 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-1 4/10SP 1 4/10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-1 6/10SP 1 6/10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-1 8/10SP 1 8/10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-2SP 2 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-3 2/10SP 2 2/10 2 (50.8) 0.56 (14.3) LPN Catalog Numbers (Amps) (250Vac/125Vdc)
LPN-RK-2 1/4SP 2 1/4 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-2 1/2SP 2 1/2 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-2 8/10SP 2 8/10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-3SP 3 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-3 1/2SP 3 1/2 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-4SP 4 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-4 1/2SP 4 1/2 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-5SP 5 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-5 6/10SP 5 6/10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-6SP 6 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-6 1/4SP 6 1/4 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-8SP 8 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-9SP 9 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-10SP 10 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-12SP 12 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-15SP 15 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-17 1/2SP 17 1/2 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-20SP 20 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-25SP 25 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-30SP 30 2 (50.8) 0.56 (14.3) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-35SP** 35 3 (76.2) 0.81 (20.6) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-40SP** 40 3 (76.2) 0.81 (20.6) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-45SP** 45 3 (76.2) 0.81 (20.6) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-50SP** 50 3 (76.2) 0.81 (20.6) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-60SP** 60 3 (76.2) 0.81 (20.6) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-70SP**** 70 5.88 (149.2) 1.06 (26.9) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-80SP** 80 5.88 (149.2) 1.06 (26.9) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-90SP** 90 5.88 (149.2) 1.06 (26.9) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-100SP** 100 5.88 (149.2) 1.06 (26.9) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-110SP** 110 7.13 (181.0) 1.66 (42.2) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-125SP** 125 7.13 (181.0) 1.66 (42.2) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-150SP** 150 7.13 (181.0) 1.66 (42.2) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-175SP** 175 7.13 (181.0) 1.66 (42.2) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-200SP** 200 7.13 (181.0) 1.66 (42.2) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-225SP** 225 8.63 (219.1) 2.38 (60.5) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-250SP** 250 8.63 (219.1) 2.38 (60.5) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-300SP** 300 8.63 (219.1) 2.38 (60.5) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-350SP** 350 8.63 (219.1) 2.38 (60.5) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-400SP** 400 8.63 (219.1) 2.38 (60.5) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-450SP** 450 10.38 (263.5) 2.88 (73.2) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-500SP** 500 10.38 (263.5) 2.88 (73.2) CLASS RK1 Dimension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.
LPN-RK-600SP** 600 10.38 (263.5) 2.88 (73.2) CLASS RK1 D, , imension - in (mm)

Basic
dimensions are same as Class H
(formerly NEC) One-Time (NON &
NOS) and Superlag Renewable RES
& REN fuses. NOTE: These fuses
can be used to replace existing
Class H, RK1 and RK5 fuses relating
to dimensional compatibility.