104131 Catalog

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2014-07-30

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2014_PG_Catalog_Book2
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POWR-GARD®

PRODUCTS

CATALOG

Indicating Fuses • Blocks & Holders • Relays & Controls • MOVs • Medium Voltage Fuses

POWR-GARD® PRODUCTS CATALOG

Noida

Roskilde

Kaunas

Norwich

Muzquiz

Bellingham

Matamoros

Boston

Baldwinsville

Bremen

Trollhättan

Saskatoon

Piedras Negras

Seoul Yokohama

Suzhou

Wuxi Shanghai

Taipei

Dongguan

Shenzhen

Hong Kong

Lipa City

Singapore

São Paulo

Lake Mills

Rapid City

Chicago

Champaign

Swindon

Fuses & Holders

UL Class Fuses

Medium Voltage Fuses

High-Speed Fuses

UL Class Fuse Blocks

Dead-Front Fuse Holders

Indicating Products

Power Distribution Blocks

OEM Custom Products

A Broad Portfolio of Circuit Protection

Products, Relays and Controls

Technical & Safety Resources

Datasheets

White Papers

CAD Drawings

Electrical Curves

Training Videos

Technical Articles

High Power Test Lab

Technical Hotline

Relays & Controls

Ground-Fault Protection

Trailing Cable Protection

Resistance Grounding

Motor & Pump Protection

Arc-Flash Protection

Generator Controls

Engine Control & Diagnosis

Custom Products

Littelfuse App!

Download our free

Littelfuse Catalogs

and Literature App to

keep our products and

technical resources at

your ﬁnger tips!

Littelfuse products help protect

electrical equipment used in

construction, general industrial,

oil & gas, solar, mining, and OEM

applications. We offer a broad and

reliable selection of fuses, fuse blocks,

protection relays, and generator

controls to improve safety and

reduce downtime.

For decades, we have helped OEMs, electrical

installers, design engineers and end-users select

the right product for their applications. Today,

Littelfuse offers a broader range of products

addressing protection, sensing, and control needs

while still providing the same great service and

support that customers have learned to expect.

Local Resources for a GLOBAL Market

Fuses

Class L Fuses ..................................................................................... 8

Class RK1 Fuses ............................................................................... 13

Class RK5 Fuses .............................................................................. 16

Class K5 Fuses ................................................................................. 20

Class J Fuses ................................................................................... 21

Class T Fuses ................................................................................... 24

Class G Fuses ................................................................................... 26

Class CC / CD Fuses .........................................................................27

UL Supplemental / 10 x 38 Fuses .....................................................30

Electronic Fuses & Automotive Blade

Glass / Electronic Fuses ...................................................................33

Blade / Automotive Fuses ................................................................36

Medium Voltage Fuses

Medium Voltage Fuses Overview ...................................................39

R-Rated Medium Voltage Fuses .....................................................40

E-Rated Medium Voltage Fuses .....................................................42

Telecommunication Products

Telecommunications Power Fuses ..................................................50

Special Purpose Fuses

Solar Products Overview ................................................................56

1500 Vdc Solar Rated Fuses ........................................................... 57

1000 Vdc Solar Rated Fuses ...........................................................59

Forklift / Stud Mounted Fuses ......................................................... 62

Plug Fuses ........................................................................................ 63

MEGA® Bolt-Down Fuses ............................................................... 63

In-Line Fuses & Holders ..................................................................64

Cable Limiters .................................................................................. 65

Cylindrical Fuses ..............................................................................66

OEM Custom Products .................................................................... 67

L Series (Traditional) Semiconductor Fuses ................................... 69

LA Series (Alternate Dimension) Semiconductor Fuses ................ 71

Square Body Semiconductor Fuses ................................................ 77

Fuse Blocks & Holders

LF Series Fuse Blocks Overview .....................................................83

Class J Fuse Blocks .........................................................................85

Class H , K5 & R Fuse Blocks ...........................................................88

Class T Fuse Blocks .........................................................................94

Class G Fuse Blocks .........................................................................99

Class CC / CD & Midget Fuse Blocks ............................................. 101

LF Series Fuse Block Covers ......................................................... 105

Solar Rated Fuse Blocks ................................................................ 106

Dead Front Fuse Holders ............................................................... 109

Miscellaneous Fuse Blocks & Holders ..........................................116

Semiconductor Fuse Blocks .......................................................... 120

Distribution & Splicer Blocks ........................................................ 122

In-Line Fuse Holders ...................................................................... 132

Pre-Engineered Solutions

LCP Fused Selective Coordination Panel ...................................... 138

LPS Series POWR-Switch (Shunt Trip Disconnect)...................... 141

Protection Relays & Controls

Relay & Control Products Overview ............................................. 143

Feature Comparisons .................................................................... 146

Ground-Fault Protection ................................................................148

Trailing Cable Protection ............................................................... 151

Resistance Grounding & NGR Monitoring.................................... 152

Motor Protection ........................................................................... 154

Pump & Feeder Protection ............................................................ 156

Arc-Flash Protection ...................................................................... 157

Industrial GFCI (Shock-Block™) ..................................................... 157

Generator & Single-Function Protection ...................................... 158

Generator Control ..........................................................................163

Engine Control & Diagnosis .......................................................... 167

Alarm Monitoring .......................................................................... 168

Custom-Engineered Electrical Equipment .................................... 170

Relay & Control Accessories ........................................................ 171

Suppression Products

Industrial Varistor Products .......................................................... 173

Surge Suppression Fuses .............................................................. 175

BVSP Suppression Fuses............................................................... 176

Miscellaneous Accessories

Fuse Reducers ............................................................................... 178

Box Cover Units ............................................................................. 179

Fuse Replacement & Custom Kit (FRCK Series) ........................... 180

Fuse Display & Cabinet ................................................................. 181

Technical Application Guide

Fuseology Fundamentals ...............................................................183

Selection Considerations .............................................................. 184

Time-current Curves & Peak Let-through Charts ......................... 189

Selective Coordination .................................................................. 191

UL / CSA Fuse Classes & Applications .......................................... 194

Terms & Deﬁnitions ....................................................................... 196

Motor Protection Tables................................................................203

Alphanumeric Index of Catalog Numbers ....................................206

Condensed Fuse Cross Reference ................................................208

Table of Contents

UL CLASS LITTELFUSE

SERIES OVERLOAD

CHARACTERISTICS

AC RATINGS DC RATINGS RECOMMENDED

FUSE BLOCKS AND

FUSE HOLDERS

FUSE SERIES

PAGE

NUMBERS

VOLTAGE

(VOLTS) CURRENT

(AMPERES) INTERRUPTING

(AMPERES) VOLTAGE

(VOLTS) CURRENT

(AMPERES) INTERRUPTING

(AMPERES)

KLPC Time-Delay 600 200 - 6000 200K / 300K* 480 200 - 6000 20,000

–

KLLU Time-Delay 600 601 - 4000 200,000 300 601 - 4000 20,000 9

LDC Fast-Acting 600 150 - 2000 200,000 600 150 - 2000 50,000 10

RK1

LLNRK Time-Delay 250 0.1 - 600

200K / 300K*

125 0.1 - 600

20,000

LFR25 13

LLSRK_ID Time-Delay 600 0.1 - 600 300 0.1 - 600 LFR60 13

LLSRK Time-Delay 600 0.1 - 600 300 0.1 - 600 LFR60 13

KLNR Fast-Acting 250 1 - 600

200,000

125 1 - 600 LFR25 15

KLSR Fast-Acting 600 1 - 600 250

300

1 - 30

35 - 600 LFR60 15

RK5

FLNR_ID

Time-Delay

250 35 - 600

200K / 300K*

125 35 - 600

20,000

LFR25 17

FLNR 250 0.1 - 600 125 0.1 - 600 17

FLSR_ID 600 0.1 - 600 300 0.1 - 600

LFR60

FLSR 600 0.1 - 600 300 0.1 - 600 17

IDSR 600 0.1 - 600 600 0.1 - 600 16

JTD_ID Time-Delay 600 0.8 - 600 200K / 300K* 300

500

0.8 - 100

110 - 600 20,000 LFJ60 • LFPSJ

JTD Time-Delay 600 0.8 - 600 21

JLS Fast-Acting 600 1 - 600 200,000 – – – 22

JLLN

Fast-Acting

300 1 - 1200

200,000

160

125

1 - 60

70 - 1200 20,000

LFT30 •

LSCR002 (700-800A) 24

JLLS 600 1 - 1200 300 1 - 1200 LFT60 •

LSCR002 (700-800A) 24

CCMR Time-Delay 600 0.2 - 30 200K / 300K*

250

300

500

0.2 - 2

4.5 - 10

2.25 - 4

12 - 30 20,000

L60030C • LFPSC •

LINK00_C •

571 • 572 •

LEC • LEY

KLDR Time-Delay 600 0.1 - 30 200,000 300 0.1 - 30 28

KLKR Fast-Acting 600 0.1 - 30 200,000 300 0.1 - 30 28

CD CCMR Time-Delay 600 35 - 60 200K / 300K* 250 35 - 60 20,000 LFC60060 27

GSLC Time Lag 600

480

0.2 - 20

25 - 60 100,000 170 0.5 - 60 10,000 LFG480 (1 - 20A) 26

LFG480 (25 - 60A)

Solar

SPF Solar – – – 1000 1 - 30 20,000 LFPHV 60

SPFJ Solar – – – 1000 70 - 450

20K (70 - 200A)

10K (250 - 400A)

20K (400A)

LFJ1000 61

SPFI Solar – – – 1000 2 - 20 20,000 Not Required 59

SPXV Solar – – – 1500 6 - 30 30,000 LPXV 57

SPXI Solar – – – 1500 2.5 - 3.5 15,000 Not Required 58

NLN

Fast-Acting

250 1 - 600

50,000

250 1 - 600 20K (1 - 60A)

50K (70 - 600A) LFH25 20

NLS 600 1 - 600

600

500

400

600

500

1 - 7

8 - 30

35 - 60

70 - 200

225 - 600

20K (1 - 60A)

50K (70 - 600A) LFH60 20

Semiconductor

L15S

Very Fast-Acting

150 1 - 1000

200,000

150

100

1 - 60

70 - 1000

20,000 LSCR • 1LS

(except L70S)

L25S 250 1 - 800 250

200

1 - 200

225 - 800 69

L50S 500 10 - 800 450 10 - 800 69

L60S 600 1 - 800 – – 69

L70S 700 10 - 800 650 10 - 800 69

Midget

(Supplementary)

BLF Fast-Acting 250

125

0.5 - 15

20 - 30 10,000 – – –

L60030M • LFPSM •

LINK00_M •

571 • 572 •

LEB • LEX

BLN Fast-Acting 250 1 - 30 10,000 – – – 30

BLS Fast-Acting 600

250

0.2 - 5

6 - 10 10,000 – – – 31

FLA Time-Delay 125 0.1 - 30 10,000 – – – 31

FLM Time-Delay 250 0.1 - 30 10,000 125 0.1 - 30 10,000 30

FLQ Time-Delay 500 0.1 - 30 10,000 300 0.1 - 30 10,000 30

KLK Fast-Acting 600 0.1 - 30 100K / 200K* 500 0.1 - 30 50,000 30

KLKD Fast-Acting 600 0.1 - 30 100,000 600 0.1 - 30 50,000 30

KLQ Time-Delay 600 1 - 6 10,000 – – – 31

FLU Fast-Acting 1000 0.44

10,000

20,000 1000 0.44

10,000

20,000 LFPHV 31

Plug SOO, TOO Time-Delay 125 0.25 - 30 10,000 – – – Box Cover Units 63

SLO, TLO Medium Time-Delay 125 15 - 30 10,000 – – –

Telecom

L17T

Fast-Acting

– – –

170

70 - 1200

100,000

LTFD Series 50

TLN – – – 1 - 600 LFR25 51

TLS – – – 1 - 125 LTFD101 •

LFT30060 (cartridge) 52

* Series are UL Listed with I.R. of 200,000A and Littelfuse® self-certified with 300,000A I.R.

UL FUSE CLASSES AND SELECTION CHART

UL FUSE CLASS POWR-PRO®PAGE NUMBERS

Class L KLPC & LDC 8, 10

Class RK1 LLNRK/LLSRK_ID 13

Class J JTD/JTD_ID 21

Class CC / CD CCMR (2/10–60) 27

Increase safety and reduce inventory

with MROplus

Your detailed reports will include:

• A streamlined current-limiting fuse inventory

recommendation

• A guide to reducing electrical hazards within your facility

• An annual cost savings estimate

• A detailed cross reference

All you need to do is e-mail an Excel ﬁle of your fuse inventory

to techline@littelfuse.com or to your local sales representative.

We will do the rest!

Look for the POWR-PRO® logo

for superior protection

Littelfuse POWR-GARD®–

Advanced Protection and

Facility Savings

Increase safety with POWR-PRO® Fuses

• Superior current-limitation from 1/10 – 6000 amperes

• Type 2 “No Damage” coordination with NEMA

and IEC motor circuits

• Blown fuse indication (LLSRK_ID and JTD_ID Series)

• Compact motor protection (JTD/JTD_ID, CCMR Series)

• 300,000 AIR to meet trends toward higher SCCR

SPXV Series Space-Saving Solar Fuse ................... 57

SPXI Series In-Line Solar Fuse ................................58

LPXV Series 1500 Vdc Fuse Holder ...................... 106

New Products............................... littelfuse.com/solar

SPF Series 1000 Vdc 10x38mm Fuse.......................60

SPFJ Series 1000 Vdc Class J size Fuse ................... 61

LFPHV 1000 Vdc Fuse Holder ................................. 109

IDSR Series 600 Vdc Class RK5 Fuse ....................... 16

KLKD Series 600 Vdc 10x38 Fuse ............................ 30

SE-601 Ground-Fault Protection Relay ................... 148

1500 Vdc Solar Products 600-1000 Vdc Solar Products

Look for this logo to indicate products that are used in solar applications.

Visit our website littelfuse.com/solar for the latest updates on

approvals, certiﬁcations, and new products.

POWR-GARD® SOLAR RATED PRODUCTS

This catalog incorporates our line of products designed speciﬁcally for the growing solar industry. As global

standards are constantly changing, Littelfuse continues to develop circuit protection products that meet the

requirements of the evolving photovoltaic market.

Developing Next Generation

1500 Vdc Products for High

And Low Current Ratings

Enhanced

Overload Relays

Protect motors and

pumps from over/

under current, over/

under voltage, phase

issues and ground

faults. Communication

modules also available.

Voltage/Phase

Monitors

A cost-effective means

to protect motors and

pumps from voltage

and phase issues.

Alternating

Relays

Start and stop up to

four pumps or use as

a multi-channel switch.

Intrinsically safe

options available.

Pump

Controllers

Balance runtime

between loads and can

be used in hazardous

locations.

Load Sensors

Detect if the load is

running or if there is an

overload or underload

condition.

Timers &

Flashers

Delay starting

and stopping

loads, cycling, and

sequencing of motors,

pumps, compressors,

heaters, and lighting.

PROTECTION RELAYS & CONTROLS

Expanding our Line of Motor Protection Products

SymCom and SSAC manufacture robust products such as motor monitoring, protection and control

relays, electronic controls, timers and ﬂashers. SymCom and SSAC products are used to control and

protect applications in the Industrial Pumping, Irrigation, Water and Waste Water, HVAC/R, Oil and Gas,

Food and Beverage, and Elevator markets.

Littelfuse

Acquires

SymCom

SymCom has three key brands:

SymCom and SSAC products include:

For more information visit SymCom.com, SSAC.com or Littelfuse.com/Electrical

LCP Series Coordination Panel

Ideal for circuits that require selective coordination

such as emergency lighting circuits or essential

electrical systems.

Features/Beneﬁts

• Meets NEC® requirements

• Class CC & J fuse holders have open-circuit indication

• Fast-acting fuses protect against short circuits

• Feed through/sub feed lugs and 84-circuit

conﬁguration available

• Ground and neutral bars

• Copper bus standard

littelfuse.com/LCP

See page 141

LPS Series POWR-Switch

Individual fusible shunt trip disconnect switch easily

coordinates with system’s overcurrent protection.

Typical applications include elevator circuits.

Features/Beneﬁts

• Pre-engineered single unit makes procurement easy

• Reduces labor costs up to 66%

• Flexibility for a variety of applications

• Control power terminal block

• UL Listed package

• Cu and AI wire rated

• Lockable operating handle meets all code and

safety requirements

littelfuse.com/LPS

See page 143

Meet NEC® Requirments

And Save Time With

Pre

Engineered Solutions

FUSES

UL Class L Fuses ........................................................ 8

UL Class RK1 Fuses .................................................... 13

UL Class RK5 Fuses....................................................16

UL Class J Fuses .......................................................21

UL Class T Fuses .......................................................24

UL Class G Fuses ......................................................26

UL Class CC & CD Fuses ..............................................27

UL Supplementary Midget (10x38) Fuses ........................... 30

Table of Contents

Section Overview

For over 85 years Littelfuse® has been providing fuses to the electrical

market. You can continue to count on our manufacturing and supply

chain processes to deliver high quality fuses when you need them.

At Littelfuse we leverage our global reach to stay on top of the latest

applications and standards. Whether your circuit protection needs are

focused on OEM, MRO, or construction, we are committed to being

your circuit protection partner and appreciate your business.

UL Class L Fuses

Fuses – UL Class L

KLPC SERIES POWR-PRO® FUSES

600 Vac • Time-Delay • 200-6000 A

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/klpc

Dimensions

Please refer to the Class L dimensions ............................. 12

Peak Let-Thru Curve

Note: For more information, see Peak Let-Thru Table on pg. 11

Ordering Information

KLPC

Description

KLPC series POWR-PRO® fuses meet or exceed the most

stringent project speciﬁcations, including silver links, silver-plated

copper end bells, glass-reinforced melamine bodies, O-ring seals

between body and end bells, and granular quartz ﬁllers.

Applications

• Switchboard mains and feeders

• Motor control center mains

• Large motor branch circuits

• Protection of power circuit breakers

Features/Beneﬁts

• POWR-PRO® Performance

• Best-in-class time-delay withstand

• Current-Limiting

• Easily coordinated with other system components

• 300 kA AC Interrupting Rating (self-certiﬁed)

Speciﬁcations

Voltage Ratings AC: 600 Vac or less

DC: 480 V

Ampere Range 200 – 6000 A

Interrupting Ratings AC: 200 kA rms symmetrical

300 kA rms symmetrical

(Littelfuse self-certiﬁed)

DC: 20,000 A

Approvals AC: Standard 248-10, Class L

UL Listed 601–6000 A (File: E81895)

UL Recognized 200–600 A (File: E71611)

CSA Certiﬁed 601–6000 A (File: LR29862)

Federal Speciﬁcations 700–6000 A

(QPL-W-F-1814)

DC: Littelfuse self-certiﬁed

Material Melamine body, Copper caps (silver plated)

Country of Origin Mexico

AMPERE RATINGS

200 500 800 1350 2000 3000

250 600 900 1400 2100 3500

300 601 1000 1500 2200 4000

350 650 1100 1600 2300 4500

400 700 1200 1800 2400 5000

450 750 1300 1900 2500 6000

SERIES AMPERAGE CATALOG NUMBER ORDERING NUMBER

KLPC 800 KLPC800 KLPC800.X

UL Class L Fuses

Fuses – UL Class L

KLLU SERIES FUSES

600 Vac • Time-Delay • 601-4000 A

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/kllu

Dimensions

Please refer to the Class L dimensions ............................. 12

Peak Let-Thru Curve

Note: For more information, see Peak Let-Thru Table on pg. 11

Ordering Information

KLLU

Description

KLLU series fuses meet or exceed UL requirements for

UL Class L fuses. The KLLU series offers an economical

alternative to KLPC POWR-PRO® fuse with a slightly

higher peak let through current.

Applications

• Service switches

• Switchboard mains and feeders

• Motor control center mains

• Large motor branch circuits

• Circuit breaker protection

Features/Beneﬁts

• Current-Limiting

• Easily coordinated with other system components

• 200 kA AC Interrupting Rating

Speciﬁcations

Voltage Ratings AC: 600 Vac or less

DC: 300 V

Ampere Range 601–4000 A

Interrupting Ratings AC: 200 kA rms symmetrical

DC: 20 kA rms symmetrical

Approvals Standard 248-10, Class L

UL Listed (File: E81895)

CSA Certiﬁed (File: LR29862)

DC: Littelfuse self-certiﬁed

Material Melamine body, Copper caps (silver plated)

Country of Origin Mexico

AMPERE RATINGS

601 750 1000 1400 1800 3000

650 800 1200 1500 2000 3500

700 900 1350 1600 2500 4000

SERIES AMPERAGE CATALOG NUMBER ORDERING NUMBER

KLLU 601 KLLU601 KLLU601.X

UL Class L Fuses

LDC SERIES POWR-PRO® FUSES

600 Vac/dc • Fast Acting • 150-2000 A

Description

High DC voltage and interrupting ratings make the

POWR-PRO® LDC ideal for DC applications. The DC

interrupting performance exceeds UL listing requirements.

Applications

• Solar inverter and array protection

• UPS protection especially for large battery circuits

• DC distribution and variable speed drives

• Mass transit systems

Features/Beneﬁts

• POWR-PRO® Performance

• Extremely Current-Limiting

• 600 Vac/dc rated

• 200 kA AC Interrupting Rating

• 50 kA DC Interrupting Rating

Speciﬁcations

Voltage Ratings 600 Vac/dc or less

Ampere Range 150–2000 A

Interrupting Ratings AC: 200 kA rms symmetrical

DC: 50 kA

Time Constant 16 ms

Approvals Standard 248-10, Class L

UL Listed 601–2000 A (File: E81895)

UL Recognized 150–600 A (File: E71611)

CSA Certiﬁed (File: LR29862)

Material Melamine body, Copper caps (silver plated)

Country of Origin Mexico

AMPERE RATINGS

150 450 750 1201 1601

200 500 800 1300 1800

250 600 900 1350 1900

300 601 1000 1400 2000

350 650 1100 1500

400 700 1200 1600

Web Resources

Download TC curves, CAD drawings and other technical

documents: littelfuse.com/ldc

Dimensions

Please refer to the Class L dimensions ............................. 12

Peak Let-Thru Curve

Note: For more information, see Peak Let-Thru Table on pg. 11

SERIES AMPERAGE CATALOG NUMBER ORDERING NUMBER

LDC 700 LDC700 0LDC700.X

Ordering Information

LDC

Fuses – UL Class L

UL Class L Fuses

SHORT CIRCUIT

CURRENT*

APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS

800 A 1200 A 1600 A 2000 A 3000 A 4000 A 5000 A 6000 A

5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000

10,000 8,800 10,000 10,000 10,000 10,000 10,000 10,000 10,000

15,000 10,500 13,500 15,000 15,000 15,000 15,000 15,000 15,000

20,000 12,000 15,000 19,000 20,000 20,000 20,000 20,000 20,000

25,000 13,000 16,000 21,000 24,000 25,000 25,000 25,000 25,000

30,000 14,000 18,000 23,000 26,000 30,000 30,000 30,000 30,000

35,000 15,000 19,000 24,000 27,000 32,000 35,000 35,000 35,000

40,000 16,000 20,000 25,000 28,000 34,000 40,000 40,000 40,000

50,000 17,000 22,000 27,000 31,000 37,000 42,500 50,000 50,000

60,000 18,000 24,000 29,000 34,000 40,000 46,000 52,000 60,000

80,000 20,000 26,000 32,000 37,000 44,000 51,000 57,000 70,000

100,000 21,000 27,000 34,000 40,000 46,000 57,000 65,000 75,000

150,000 23,000 31,000 38,000 44,000 54,000 67,000 75,000 87,000

200,000 24,000 34,000 42,000 46,000 57,000 70,000 80,000 95,000

Current-Limiting Effects of KLPC (600 V) Fuses

Current-Limiting Effects of LDC (600 V) Fuses

SHORT CIRCUIT

CURRENT*

APPARENT RMS SYM MET RI CAL CURRENT FOR VARIOUS FUSE RATINGS

800 A 1200 A 1600 A 2000 A

5,000 5,000 5,000 5,000 5,000

10,000 8,500 10,000 10,000 10,000

15,000 9,750 14,000 15,000 15,000

20,000 10,500 15,000 19,000 20,000

25,000 11,500 16,000 21,000 25,000

30,000 12,000 17,000 22,000 26,000

35,000 12,500 18,000 23,000 28,000

40,000 13,500 19,000 24,000 30,000

50,000 14,000 21,000 26,000 32,000

60,000 15,000 22,000 28,000 34,000

80,000 16,000 24,000 30,000 36,000

100,000 18,000 25,000 33,000 40,000

150,000 20,000 30,000 38,000 44,000

200,000 23,000 32,000 41,000 46,000

*Prospective RMS Sym met ri cal Amperes Short-Circuit Current

Note: Data derived from Peak Let-Thru Curves

SHORT-CIRCUIT

CURRENT*

APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS

800 A 1200 A 1600 A 2000 A 3000 A 4000 A

5,000 5,000 5,000 5,000 5,000 5,000 5,000

10,000 10,000 10,000 10,000 10,000 10,000 10,000

15,000 11,900 15,000 15,000 15,000 15,000 15,000

20,000 13,000 18,500 20,000 20,000 20,000 20,000

25,000 14,000 20,000 25,000 25,000 25,000 25,000

30,000 14,500 21,000 26,500 30,000 30,000 30,000

35,000 15,000 22,000 28,500 34,000 35,000 35,000

40,000 16,000 23,000 30,000 35,000 37,000 40,000

50,000 17,000 24,000 32,000 38,000 39,000 44,000

60,000 18,000 26,000 34,000 42,000 43,000 50,000

80,000 19,000 28,000 36,000 44,000 46,000 54,500

100,000 21,000 30,000 38,000 46,000 48,000 57,500

150,000 24,000 35,000 44,000 50,000 51,000 68,000

200,000 26,000 38,000 48,000 53,000 60,000 74,000

Current-Limiting Effects of KLLU (600 V) Fuses

CLASS L CURRENT-LIMITING EFFECTS

Fuses – UL Class L

UL Class L Fuses

CLASS L SERIES DIMENSIONS

FIG.1

AABC

D E F

FIG.2

D E F

ABC

FIG. 3

A F

FIG. 5

D E F

ABC

FIG. 4

AMPERES FIG.

NO.

DIMENSIONS INCHES (mm)

A B C D E F G H J K L M N

150-800 133⁄4

(95.3)

53⁄4

(14 6.1)

63⁄4

(171.5) — —85⁄8

(219.1) — — 2

(50.8)

21⁄2

(63.5)

3⁄8

(9.5)

5⁄8 x 11⁄8

(15.9) x (28.6) —

900-1200 233⁄4

(95.3)

53⁄4

(14 6.1)

63⁄4

(171.5)

91⁄4

(235.0)

91⁄2

(241.3)

103⁄4

(273.1) — — 2

(50.8)

21⁄2

(63.5)

3⁄8

(9.5)

5⁄8 x 3⁄4

(15.9) x (19.1)

5⁄8 x 11⁄8

(15.9) x (28.6)

1300-1600 233⁄4

(95.3)

53⁄4

(14 6.1)

63⁄4

(171.5)

91⁄4

(235.0)

91⁄2

(241.3)

103⁄4

(273.1) — — 23⁄8

(60.3)

(76.2)

7⁄16

(11.1)

5⁄8 x 3⁄4

(15.9) x (19.1)

5⁄8 x 11⁄8

(15.9) x (28.6)

1800-2000 233⁄4

(95.3)

53⁄4

(14 6.1)

63⁄4

(171.5)

91⁄4

(235.0)

91⁄2

(241.3)

103⁄4

(273.1) — — 23⁄4

(69.9)

31⁄2

(88.9)

1⁄2

(12.7)

5⁄8 x 3⁄4

(15.9) x (19.1)

5⁄8 x 11⁄8

(15.9) x (28.6)

2100-2500 34

(101.6)

53⁄4

(14 6.1)

63⁄4

(171.5)

91⁄4

(235.0)

91⁄2

(241.3)

103⁄4

(273.1)

15⁄8

(41.3)

13⁄4

(44.5)

31⁄2

(88.9)

(127.0)

3⁄4

(19.1)

5⁄8 x 3⁄4

(15.9) x (19.1)

5⁄8 x 11⁄8

(15.9) x (28.6)

2501-3000 34

(101.6)

53⁄4

(14 6.1)

63⁄4

(171.5)

91⁄4

(235.0)

91⁄2

(241.3)

103⁄4

(273.1)

15⁄8

(41.3)

13⁄4

(44.5)

(101.6)

(127.0)

3⁄4

(19.1)

5⁄8 x 3⁄4

(15.9) x (19.1)

5⁄8 x 11⁄8

(15.9) x (28.6)

3500-4000 44

(101.6)

53⁄4

(14 6.1)

63⁄4

(171.5)

91⁄4

(235.0)

91⁄2

(241.3)

103⁄4

(273.1)

13⁄4

(44.5)

31⁄4

(82.6)

43⁄4

(120.7)

53⁄4

(14 6.1)

3⁄4

(19.1)

5⁄8 x 13⁄8

(15.9) x (34.9)

5⁄8 x 13⁄8

(15.9) x (34.9)

4500-5000 54

(101.6)

53⁄4

(14 6.1) —91⁄4

(235.0) —103⁄4

(273.1)

15⁄8

(41.3)

31⁄4

(82.6)

51⁄4

(133.4)

71⁄8

(181.0)

(25.4)

5⁄8 DIA.

(15.9) —

6000 54

(101.6)

53⁄4

(14 6.1) —91⁄4

(235.0) —103⁄4

(273.1)

15⁄8

(41.3)

31⁄4

(82.6)

51⁄4

(133.4)

71⁄8

(181.0)

(25.4)

5⁄8 DIA.

(15.9) —

Dimensions

Fuses – UL Class L

UL Class RK1 Fuses

LLNRK / LLSRK / LLSRK_ID SERIES INDICATOR® FUSES

250/600 Vac • Dual Element • Time-Delay • 1/10-600 A

AMPERE RATINGS

1/10 1 2 8/10 6 1/420 75†225

15/100 1 1/83 7 25 80 250

2/10 1 1/43 2/10 7 1/2* 30 90 300

1/41 4/10 3 1/28 35 100 350

3/10 1 6/10 4 9 40 110 400

4/10 1 8/10 4 1/210 45 125 450

1/22 5 12 50 150 500

6/10 2 1/45 6/10 15 60 175 600

8/10 2 1/26 17 1/270 200

Note: All LLSRK_ID fuses rated 1 amp and above are Indicator® fuses.

*7.5 A is only available for the ID versions

†75 A is only available for the 600 V

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/llsrk

littelfuse.com/llnrk

Recommended Fuse Blocks

LFR Series ......................................................................... 88

Dimensions

Please refer to the Class R dimensions ............................. 19

PEAK LET-THRU IN AMPERES

AVAILABLE FAULT CURRENT

SYMMETRICAL R.M.S. AMPERES

1000000

100000

10000

1000

100

200000

100000

10000

1000

100

500 A

400 A

200 A

100 A

60 A

30 A

Peak Let-Thru Curve (600 V)

Note: For more information, see Peak Let-Thru Table on pg. 14

Ordering Information

VOLTAGE SERIES AMP

INDICATION

CATALOG

NUMBER

ORDERING

NUMBER

600 LLSRK_ID 60 •LLSRK060ID LSRK060.TXID

600 LLSRK 60 –LLSRK060 LSRK060.T

250 LLNRK 80 –LLNRK080 LNRK080.V

LLSRK

Fuses – UL Class RK1

Description

RK1 fuses are extremely current-limiting fuses meaning they greatly

reduce or eliminate damage to circuits and equipment under short-

circuit conditions. Replacing existing Class H, K and RK5 fuses with

RK1 fuses is one of the easiest ways to immediately improve the

protection of plant workers and equipment.

Applications

• All general purpose circuits

• Motors

• Transformers

• Safety upgrades

Features/Beneﬁts

• POWR-PRO® Performance

• Indicator and Non-Indicator versions available

• Dual-element design

• Extremely Current-Limiting

• IEC Type 2 “No Damage” protection to IEC and

NEMA type motor starters

• Indicating and DIN mount fuse holders available

Speciﬁcations

Voltage Ratings AC: 600 Vac or less (LLSRK/LLSRK_ID)

250 Vac or less (LLNRK)

DC: 300 Vdc (LLSRK/LLSRK_ID)

125 Vdc (LLNRK)

Ampere Range 1/10 – 600 A

Interrupting Ratings AC: 200 kA rms symmetrical

300 kA rms symmetrical

(Littelfuse self-certiﬁed)

DC: 20 kA

Approvals AC: Standard 248-12, Class RK1

UL Listed (File: E81895)

CSA Certiﬁed (File: LR29862)

DC: Littelfuse self-certiﬁed

Federal Speciﬁcation WF-1814

(QPL- W-F-1814)

Material

LLNRK: 1/10-30 A: Fiber body, Bronze cap

35-60 A: Composite body, Bronze cap (nickel plated)

70-600 A: Composite body, Copper cap

LLSRK: 1/10-60 A: Composite body, Bronze cap (nickel plated)

70-600 A: Composite body, Copper cap

Country of Origin Mexico

UL Class RK1 Fuses

CLASS RK1 CURRENT LIMITING EFFECTS

SHORT CIRCUIT

CURRENT*

APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS

30 A 60 A 100 A 200 A 400 A 600 A

5,000 1,060 1,600 2,100 2,600 4,100 —

10,000 1,350 2,000 2,800 3,400 5,250 8,000

15,000 1,600 2,300 3,200 3,900 6,000 9,000

20,000 1,700 2,600 3,600 4,500 6,700 10,000

25,000 1,900 2,800 3,800 4,800 7,500 11,000

30,000 2,000 3,000 4,100 5,200 8,000 12,000

35,000 2,100 3,100 4,400 5,700 8,500 12,500

40,000 2,200 3,300 4,600 6,000 9,000 13,000

50,000 2,400 3,500 4,900 6,500 9,500 14,000

60,000 2,500 3,800 5,200 7,000 10,000 15,000

80,000 2,700 4,000 5,700 7,750 11,000 17,000

100,000 2,900 4,200 6,200 8,500 12,000 18,000

150,000 3,200 4,600 7,30 0 10,000 14,000 21,000

200,000 3,300 4,700 8,000 11,000 16,000 23,000

Current-Limiting Effects of LLSRK and LLSRK_ID (600 V) Fuses

SHORT CIRCUIT

CURRENT*

APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS

30 A 60 A 100 A 200 A 400 A 600 A

5,000 900 1,400 2,000 2,700 4,800 5,000

10,000 1,100 1,900 2,700 3,500 6,200 8,500

15,000 1,250 2,100 3,100 4,200 7,000 9,500

20,000 1,400 2,400 3,500 4,600 8,000 10,800

25,000 1,500 2,600 3,900 5,000 8,300 11,500

30,000 1,600 2,800 4,000 5,250 9,000 12,000

35,000 1,700 2,850 4,300 5,500 9,500 12,500

40,000 1,800 3,000 4,600 5,800 9,800 13,500

50,000 1,900 3,200 4,800 6,300 10,200 14,000

60,000 2,000 3,500 5,200 6,700 11,000 15,000

80,000 2,200 3,900 5,700 7, 200 12,200 16,000

100,000 2,300 4,000 6,000 8,100 12,700 17,000

150,000 2,500 4,500 6,700 9,100 14,000 19,000

200,000 2,600 4,800 7,000 9,700 15,000 20,000

*Prospective RMS Symmetrical Amperes Short-Circuit Current

Note: Data derived from Peak Let-Thru Curves

Current-Limiting Effects of LLNRK (250 V) Fuses

Blown Fuse Indicator Assembly

Granular Quartz Filling

Precision Formed Short Circuit Element

Fiberglass Reinforced Pultruded Body

Elastomeric Silicone Overload Section

Plated End Caps

LLSRK_ID Fuses—Quality Construction

for performance you can rely on…

Littelfuse LLSRK_ID Fuses feature true dual-element

construction. This robust design withstands

repeated surges within rated time delay

without opening needlessly, eliminating

downtime caused by power surges

or equipment demands.

Fuses – UL Class RK1

UL Class RK1 Fuses

KLNR / KLSR SERIES FUSES

250/600 Vac • Fast-Acting • 1-600 A

AMPERE RATINGS

1 10 40 100 250

2 12 45 110 300

3 15 50 125 350

4 20 60 150 400

5 25 70 175 450

6 30 80 200 500

8 35 90 225 600

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/klsr

littelfuse.com/klnr

Recommended Fuse Blocks

LFR Series ......................................................................... 88

Dimensions

Please refer to the Class R dimensions ............................. 19

05549002

Peak Let-Thru Curve (600 V)

Ordering Information

VOLTAGE SERIES AMP CATALOG

NUMBER

ORDERING

NUMBER

600 KLSR 90 KLSR090 KLSR090.V

250 KLNR 90 KLNR090 KLNR090.V

KLSR

Fuses – UL Class RK1

Description

KLSR and KLNR series are en economical design providing

the safety of a RK1 fuse. The single element design

provides fast-acting overload and short-circuit protection.

Use POWR-PRO® LLNRK and LLSRK series RK1, dual-

element, time-delay fuses in all new applications requiring

the current-limiting ability of UL Class RK1 fuses or in

existing applications where fast-acting RK1 or RK5 fuses

have been opening on harmless system surges such as

motor starting currents.

Applications

• Resistance heaters

• Lighting circuits

• Non-inductive loads

Features/Beneﬁts

• Extremely Current-Limiting

• Indicating and DIN mount fuse blocks available

Speciﬁcations

Voltage Ratings AC: 600 Vac or less (KLSR)

250 Vac or less (KLNR)

DC: 250 V (1 – 30 A KLSR);

300 V (35 – 600 A KLSR)

125 V (KLNR)

Ampere Range 1 – 600 A

Interrupting Ratings AC: 200 kA rms symmetrical

DC: 20 kA

Approvals AC: Standard 248-12, Class RK1

UL Listed (File: E81895)

CSA Certiﬁed (File: LR29862)

DC: Littelfuse self-certiﬁed

Material

1-60 A: Composite body, Bronze cap (nickel plated)

70-100 A: Composite body, Copper caps

110-600 A: Melamine body, Copper caps

Country of Origin Mexico

UL Class RK5 Fuses

Fuses – UL Class RK5

IDSR SERIES INDICATOR® POWR-PRO® FUSES

600 Vac/dc • Dual Element • Time-Delay • 1/10-600 A

Ordering Information

AMPERE RATINGS

1/10 6/10 1 8/10 4 8 30 80 225

1/88/10 2 4 1/29 35 90 250

15/100 1 2 1/45 10 40 100 300

2/10 1 1/82 1/25 6/10 12 45 110 350

1/41 1/42 8/10 6 15 50 125 400

3/10 1 4/10 3 6 1/417 1/260 150 450

4/10 1 1/23 2/10 7 20 70 175 500

1/21 6/10 3 1/27 1/225 75 200 600

Note: All fuses rated 1A and above are Indicator® fuses.

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/idsr

Recommended Fuse Blocks

LFR Series ......................................................................... 88

Dimensions

Please refer to the Class R dimensions ............................. 19

VOLTAGE SERIES AMP CATALOG

NUMBER

ORDERING

NUMBER

600 IDSR 30 IDSR030 IDSR030.T

Description

The IDSR combines 600 Vdc capability with indication to

provide an ideal solution for many DC applications.

Applications

• DC circuits

• Solar inverters

• Motors

• Transformers

• Solenoids

• Fluorescent lighting

Features/Beneﬁts

• POWR-PRO® Performance

• Current limiting

• Indication

Speciﬁcations

Voltage Ratings AC: 600 Vac or less

DC: 600 Vdc or less

Ampere Range 1/10 – 600 A

Interrupting Ratings AC: 200 kA rms symmetrical

300 kA rms symmetrical

(Littelfuse self-certiﬁed)

DC: 20 kA

Approvals Standard 248-12, Class RK5

UL Listed (File: E81895)

CSA Certiﬁed (File: LR29862)

Material 1/10-60 A: Composite body, Bronze caps

70-600 A: Composite body, Copper caps

Country of Origin Mexico

Peak Let-Thru Curve

Note: For more information, see Peak Let-Thru Table on pg. 18

100

1000

10000

100000

1000000

100

1000

10000

100000

2000000

AVAILABLE FAULT CURRENT

SYMMETRICAL R.M.S. AMPERES

PEAK LET-THRU IN AMPERES

15 A

30 A

60 A

100 A

200 A

400 A

600 A

IDSR

UL Class RK5 Fuses

Fuses – UL Class RK5

FLNR_ID / FLSR_ID SERIES INDICATOR® FUSES

250/600 Vac • Dual Element • Time Delay • 1/10-600 A

Description

Available in both Indicating and Non-Indicating versions,

the FLNR/FLSR series of fuses set the standard for general

purpose fuses. The dual-element design provides advanced

short circuit and overload protection. FLSR series fuses

provide excellent protection for all types of circuits especially

those containing motors.

Applications

• Service entrance switches

• Switchboard mains and feeders

• Motor control central mains and motor branch circuits

• All general purpose circuits

Features/Beneﬁts

• Indicator and Non-Indicator versions available

• Dual-element design

• Current limiting

Speciﬁcations

Voltage Ratings AC: 600 Vac or less (FLSR_ID)

250 Vac or less (FLNR_ID)

DC: 300 V (FLSR_ID)

125 V (FLNR 1/10 – 30 A);

125 V (FLNR_ID 35 – 600 A)

Ampere Range 1/10 – 600 A

Interrupting Ratings AC: 200 kA rms symmetrical

300 kA rms symmetrical

(Littelfuse self-certiﬁed)

DC: 20 kA

Approvals Standard 248-12, Class RK5

UL Listed (File: E81895)

CSA Certiﬁed (File: LR29862)

Federal Speciﬁcation WF-1814

(QPL- W-F-1814)

Material FLSR: 1/10-60 A: Composite body, Bronze caps

70-600 A: Composite body, Copper caps

FLNR: 1/10-60 A: Fiber body, Bronze caps

70-600 A: Composite body, Copper caps

Country of Origin Mexico

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/ﬂsr

littelfuse.com/ﬂnr

Recommended Fuse Blocks

LFR Series ......................................................................... 88

Dimensions

Please refer to the Class R dimensions ............................. 19

Refer to FLNR dim. for FLNR_ID and the FLSR dim. for FLSR_ID.

AMPERE RATINGS

1/10 6/10 1 8/10 4 8 30 80 225

1/8*8/10 2 4 1/29 35 90 250

15/100 1 2 1/45 10 40 100 300

2/10 1 1/82 1/25 6/10 12 45 110 350

1/41 1/42 8/10 6 15 50 125 400

3/10†1 4/10 3 6 1/417 1/260 150 450

4/10 1 1/23 2/10 7 20 70 175 500

1/21 6/10 3 1/27 1/225 75** 200 600

Note: For 1/10 – 30A 250 volt fuses, order non-indicating FLNR series fuses.

*FLNR only. †FLNR, FLSR, FLSR_ID only. *

*FLNR, FLSR, FLSR_ID only

Peak Let-Thru Curve (600 V)

Note: For more information, see Peak Let-Thru Table on pg. 18

Ordering Information

VOLTAGE

INDICATION

SERIES AMP CATALOG

NUMBER

ORDERING

NUMBER

600 V –FLSR 15 FLSR015 FLSR015.T

600 V •FLSR_ID 15 FLSR015ID FLSR015.TXID

250 V –FLNR 60 FLNR060 FLNR060.T

250 V •FLNR_ID 60 FLNR060ID FLNR060.TXID

FLSR_ID

UL Class RK5 Fuses

Fuses – UL Class RK5

CLASS RK5 CURRENT-LIMITING EFFECTS

SHORT-CIRCUIT CURRENT* APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS

30 A 60 A 100 A 200 A 400 A 600 A

5,000 1,400 2,100 3,100 5,000 5,000 5,000

10,000 1,550 2,500 3,900 6,500 9,500 10,000

15,000 2,000 3,150 4,400 7,25 0 10,500 14,000

20,000 2,250 3,400 5,000 8,250 12,000 16,000

25,000 2,400 3,750 5,250 9,000 12,500 16,500

30,000 2,550 4,100 5,600 9,500 13,500 18,000

35,000 2,650 4,300 5,800 9,750 14,000 19,000

40,000 2,800 4,400 6,250 10,250 15,000 20,000

50,000 3,000 5,000 6,500 10,500 16,000 21,000

60,000 3,200 5,250 7,000 11,500 17,000 23,000

80,000 3,400 5,750 7,500 12,500 19,000 25,500

100,000 3,850 6,000 8,000 13,500 21,000 27,500

150,000 4,100 7,000 9,000 15,200 24,000 31,500

200,000 4,300 7,500 9,750 16,500 26,000 34,000

SHORT-CIRCUIT CURRENT* APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS

30 A 60 A 100 A 200 A 400 A 600 A

5,000 1,250 2,100 3,200 5,000 5,000 5,000

10,000 1,600 2,850 4,300 7,2 50 10,000 10,000

15,000 1,800 3,400 5,000 8,500 13,500 15,000

20,000 2,250 3,800 5,500 9,500 15,750 19,000

25,000 2,450 4,100 5,700 10,250 17,000 21,000

30,000 2,700 4,500 6,400 10,750 18,000 23,000

35,000 2,900 4,800 6,700 11,500 19,000 24,250

40,000 3,000 5,000 7, 25 0 12,000 19,500 27,000

50,000 3,400 5,250 7,7 5 0 13,000 21,000 29,000

60,000 3,600 5,750 8,100 14,000 22,000 30,500

80,000 3,900 6,250 9,000 15,000 24,000 33,000

100,000 4,300 6,750 9,750 16,500 26,000 35,000

150,000 4,500 7,60 0 11,100 19,000 28,000 38,000

200,000 4,600 8,400 12,250 21,500 30,000 40,000

Current-Limiting Effects of FLNR and FLNR_ID (250V) Fuses

*Prospective RMS Symmetrical Amperes Short-Circuit Current

Note: Data Derived from Peak Let-Thru Curves

Current-Limiting Effects of FLSR and FLSR_ID (600 V) Fuses

SHORT CIRCUIT CURRENT* APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS

15 A 30 A 60 A 100 A 200 A 400 A 600 A

5,000 800 1,100 2,100 3,200 5,000 5,000 5,000

10,000 1,100 1,600 2,900 4,300 7, 300 10,000 10,000

15,000 1,300 1,900 3,400 5,000 8,600 13,700 15,000

20,000 1,400 2,200 3,800 5,600 9,500 15,500 19,000

25,000 1,500 2,500 4,100 6,100 10,300 16,700 21,500

30,000 1,600 2,700 4,500 6,500 11,000 17,70 0 23,500

35,000 1,700 2,900 4,700 6,800 11,600 18,600 25,200

40,000 1,800 3,100 5,000 7, 200 12,100 19,400 26,600

50,000 1,900 3,400 5,400 7, 800 13,100 20,800 29,500

60,000 2,000 3,600 5,800 8,300 13,900 22,000 30,600

80,000 2,200 4,000 6,300 9,100 15,400 24,000 33,200

100,000 2,300 4,200 6,800 9,800 16,700 25,500 35,100

150,000 2,600 4,500 7,700 11,200 19,300 28,100 38,000

200,000 2,800 4,600 8,400 12,400 21,400 30,000 39,600

Current-Limiting Effects of IDSR (600 V) Fuses

Fuses – UL Class R

UL Class R Fuses

CLASS R SERIES DIMENSIONS

AMPS FIGURE

NUMBER SERIES DIMENSIONS INCHES (mm)

A B C D E F G H J K

–30

LLNRK

KLNR

FLNR

2 (50.8) 1⁄2 (12.7) 1⁄2 (12.7) 9⁄16 (14.3) 5⁄64 (2.0) 5⁄32 (4.0) 3⁄8 (9.5) — — —

LLSRK

KLSR

FLSR

IDSR

5 (127.0) 3⁄4 (19.1) 5⁄8 (15.9) 13⁄16 (20.6) 3⁄32 (2.4) 3⁄16 (4.8) 5⁄8 (15.9) — —

—

35 – 60

LLNRK

KLNR

FLNR

3 (76.2) 3⁄4 (19.1) 5⁄8 (15.9) 13 ⁄16 (20.6) 3⁄32 (2.4) 3⁄16 (4.8) 5⁄8 (15.9) — — —

LLSRK

KLSR

FLSR

IDSR

51⁄2 (139.7) 1 (25.4) 5⁄8 (15.9) 11⁄16 (27.0) 3⁄32 (2.4) 1⁄4 (6.4) 7⁄8 (22.2) — — —

70 – 100

LLNRK

KLNR

FLNR

57⁄8 (149.2) 1 (25.4) 11⁄16 (27.0) 11⁄16 (27.0) 1⁄8 (3.2) 3⁄4 (19.1) —1⁄4 (6.4) 9⁄32 (7.1) 1⁄2 (12.7)

LLSRK

KLSR

FLSR

IDSR

77⁄8 (200.0) 11⁄4 (31.8) 11⁄16 (27.0) 15⁄16 (33.3) 1⁄8 (3.2) 3⁄4 (19.1) —1⁄4 (6.4) 9⁄32 (7.1) 1⁄2 (12.7)

110 – 200

LLNRK

KLNR

FLNR

71⁄8 (181.0) 11⁄2 (38.1) 115 ⁄32 (3 7.3) 119 ⁄32 (40.5) 3⁄16 (4.8) 11⁄8 (28.6) —7⁄16 (11.1) 9⁄32 (7.1) 11 ⁄16 (17.5)

LLSRK

KLSR

FLSR

IDSR

95⁄8 (244.5) 13⁄4 (44.5) 115 ⁄32 (37.3) 127⁄32 (46.8) 3⁄16 (4.8) 11⁄8 (28.6) —7⁄16 (11.1) 9⁄32 (7.1) 11 ⁄16 (17.5)

225 – 400

LLNRK

KLNR

FLNR

85⁄8 (219.1) 2 (50.8) 115 ⁄16 (49.2) 23⁄32 (53.2) 1⁄4 (6.4) 15⁄8 (41.3) —5⁄8 (15.9) 13 ⁄32 (10.3) 15 ⁄16 (23.8)

LLSRK

KLSR

FLSR

IDSR

115⁄8 (295.3) 21⁄2 (63.5) 2 (50.8) 219 ⁄32 (65.9) 1⁄4 (6.4) 15⁄8 (41.3) —5⁄8 (15.9) 13⁄32 (10.3) 15 ⁄16 (23.8)

450 – 600 2

LLNRK

KLNR

FLNR

103⁄8 (263.5) 21⁄2 (63.5) 23⁄8 (60.3) 219 ⁄32 (65.9) 1⁄4 (6.4) 2 (50.8) —3⁄4 (19.1) 17⁄32 (13.5) 11⁄8 (28.6)

LLSRK

KLSR

FLSR

IDSR

133⁄8 (339.7) 3 (76.2) 213⁄32 (61.1) 33⁄32 (78.6) 1⁄4 (6.4) 2 (50.8) —3⁄4 (19.1) 17⁄32 (13.5) 11⁄8 (28.6)

70-600A

FIG. 1 FIG. 2

Dimensions 1

UL Class K5 Fuses

Fuses – UL Class K5

NLN / NLS SERIES (ONE-TIME) FUSES

250/600 Vac • “One-Time” • 1-600 A

AMPERE RATINGS

1 7 *25 *60 125 300

2 8 *30 70 150 350

3 10 *35 80 175 400

4 12 *40 90 200 450

5 *15 *45 100 225 500

6 *20 *50 110 250 600

*NLKP series available only in those amperages preceded by an asterisk.

Recommended Fuse Blocks

LFH Series ......................................................................... 88

VOLTAGE SERIES AMP CATALOG NUMBER ORDERING NUMBER

600 NLS 20 NLS020 0NLS020.T

250 NLN 15 NLN015 0NLN015.T

Description

NLN and NLS fuses provide low cost protection for general

purpose feeder and branch circuits when available short

circuit currents are less than 50 kA.

Note: Canadian Electrical Code NLKP Type P fuse available. Visit littelfuse.com/nlkp

Applications

General purpose residential and commercial circuits with

little or no motor load.

Features/Beneﬁts

• Economical

• 50 kA interrupting rating

• Indicating and DIN mount holders available

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/nln

littelfuse.com/nls

Dimensions

Speciﬁcations

Voltage Ratings AC: 600 Vac or less (NLS)

250 Vac or less (NLN)

DC: 400 V (NLS 35 – 60 A)

500 V (NLS 8 – 30 A) (NLS 225 – 600 A)

600 V (NLS 1 – 7 A) (NLS 70 – 200 A)

250 V (NLN))

Ampere Range 1 – 600 A

Interrupting Ratings AC: 50 kA rms symmetrical

DC: 20 kA (1 – 60 A)

50 kA (70 – 600 A)

Approvals Standard 248-9, Class K5

UL Listed (File: E81895)

CSA Certiﬁed (File: LR29862)

Material

NLS: 1-15 A: Fiber body, Bronze cap

20-60 A: Composite body, Bronze cap

70-600 A: Fiber body, Copper cap (tin plated)

NLN: 1-30 A: Ceramic body

35-60 A: Fiber body, Bronze cap

70-600 A: Fiber body, Copper cap (tin plated)

Country of Origin Mexico

Ordering Information

BFD G

FIG. 1 FIG. 2

AMPERES REFER TO

FIG. NO. SERIES DIMENSIONS INCHES (mm)

A B C D E F G

1 – 30 1NLN 2 (50.8) 1⁄2 (12.7) 1⁄2 (12.7) 9⁄16 (14.3) — — —

NLS 5 (127.0) 3⁄4 (19.1) 5⁄8 (15.9) 13 ⁄16 (20.6) — — —

35 – 60 1NLN 3 (76.2) 3⁄4 (19.1) 5⁄8 (15.9) 13⁄16 (20.6) — — —

NLS 51⁄2 (139.7) 1 (25.4) 5⁄8 (15.9) 11⁄16 (27.0) — — —

70 – 100 2NLN 57⁄8 (149.2) 1 (25.4) 1 (25.4) 11⁄16 (27.0) 1⁄8 (3.2) 3⁄4 (19.1) 15⁄16 (33.3)

NLS 77⁄8 (200.0) 11⁄4 (31.8) 1 (25.4) 15⁄16 (33.3) 1⁄8 (3.2) 3⁄4 (19.1) 19⁄16 (39.7)

110 – 200 2NLN 71⁄8 (181.0) 11⁄2 (38.1) 13⁄8 (34.9) 19⁄16 (39.7) 3⁄16 (4.8) 11⁄8 (28.6) 17⁄8 (47.6)

NLS 95⁄8 (244.5) 13⁄4 (44.5) 13⁄8 (34.9) 127⁄32 (46.8) 3⁄16 (4.8) 11⁄8 (28.6) 23⁄32 (53.2)

225 – 400 2NLN 85⁄8 (219.1) 2 (50.8) 17⁄8 (47.6) 23⁄32 (53.2) 1⁄4 (6.4) 15⁄8 (41.3) 213⁄32 (61.1)

NLS 11 5⁄8 (295.3) 21⁄2 (63.5) 17⁄8 (47.6) 219 ⁄32 (65.9) 1⁄4 (6.4) 15⁄8 (41.3) 27⁄8 (73.0)

450 – 600 2NLN 10 3⁄8 (263.5) 21⁄2 (63.5) 21⁄4 (57.2) 219 ⁄32 (65.9) 1⁄4 (6.4) 2 (50.8) 27⁄8 (73.0)

NLS 13 3⁄8 (339.7) 3 (76.2) 21⁄4 (57.2) 33⁄32 (78.6) 1⁄4 (6.4) 2 (50.8) 37⁄16 (87.3)

Fuses – UL Class J

JTD_ID SERIES INDICATOR® POWR-PRO® FUSES

600 Vac • Time Delay • 8/10-600 A

Description

The Littelfuse POWR-PRO® JTD Class J fuse is available with

visual blown fuse indication or in standdard non-indicating

versions. The current-limiting time delay JTD_ID offers a

patented design which reduces nuisance fuse openings.

Features/Beneﬁts

• POWR-PRO® Performance

• Current-Limiting

• IEC Type 2 Protection

• Indication and non-indication versions available

Applications

• Fused combination motor controllers and control centers

• Transformer protection

• Protection for series rated molded case circuit-breaker panels

• General purpose circuits

Speciﬁcations

Voltage Ratings AC: 600 Vac or less

DC: 300 V (8⁄10 –100 A)

500 V (110–600 A)

Ampere Range 8⁄10 –600 A

Interrupting Rating AC: 200 kA rms symmetrical

300 kA rms symmetrical

DC: 20 kA

Material Body: Melamine

Caps: Nickel-plated Bronze (8⁄10 –60 A)

Brass (70–200 A)

Brass Cap & Copper Blade (225–600 A)

Approvals AC: Standard 248-8, Class J

UL Listed (File: E81895)

CSA Certified (File: LR29862)

DC: Littelfuse self-certiﬁed

Material

8/10-60 A: Melamine body, Bronze cap (nickel plated)

70-200 A: Melamine body, Brass cap

225-600 A: Melamine body, Copper cap

Country of Origin Mexico

1000000

100000

10000

1000

1000 10000 100000 200000

100

600 A

400 A

200 A

100 A

60 A

30 A

15 A

12 A

5.6 A

AVAILABLE FAULT

SYMMETRICAL R.M.S. AMPERES

PEAK LET-THRU IN AMPERES

Note: For more information, see Peak Let-Thru Table on pg. 23

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/jtd

Recommended Fuse Holders

LFJ60 Series ...................................................................... 85

LFPSJ Series (8⁄10 –60 A) .......................................................111

Dimensions

Please refer to the Class J dimensions ............................. 23

Peak Let-Thru Curve

VOLTAGE SERIES AMP

INDICATION

CATALOG

NUMBER

ORDERING

NUMBER

600 JTD_ID 60 •JTD60ID 0JTD060.TXID

600 JTD 60 –JTD060 0JTD060.T

Ordering Information

JTD_ID

UL Class J Fuses

AMPERE RATINGS

8⁄10 2 31⁄27171⁄245 100 225 500

1 21⁄44 8 20 50 110 250 600

11⁄421⁄241⁄2925 60 125 300

11⁄228⁄10 510 30 70 150 350

16⁄10 3 5 6⁄10 12 35 80 175 400

18⁄10 32⁄10 615 40 90 200 450

UL Class J Fuses

Fuses – UL Class J

JLS SERIES FUSES

600 Vac • Fast-Acting • 1-600 A

AMPERE RATINGS

120 45 90 175 350

325 50 100 200 400

630 60 110 225 450

10 35 70 125 250 500

15 40 80 150 300 600

Description

JLS series fuses provide space saving, fast-acting overload

and short-circuit protection for non-inductive loads.

For ap pli ca tions where short-duration surg es and spikes may

cause nuisance fuse opening, consider the use of Littelfuse

POWR-PRO® JTD or JTD_ID series time-delay fuses.

Applications

• General purpose circuits with little or no motor load.

• Resistive loads, such as resistance electric heat.

• Loads requiring fast-acting overload protection, such as

equipment containing solid-state devices.

Speciﬁcations

Voltage Ratings 600 Vac or less

Ampere Range 1–600 A

Interrupting Ratings 200 kA rms symmetrical

Approvals Standard 248-8, Class J

UL Listed (File: E81895)

CSA Certified (File: LR29862)

Federal Specification WF-1814

(QPL-W-F-1814)

Material

1-60 A: Melamine body,

Bronze cap (nickel plated)

70-400 A: Melamine body

Brass cap

450-600 A: Melamine body

Copper cap

Country of Origin Mexico

Dimensions

Please refer to the Class J dimensions ............................. 23

10000

100000

200000

100

1000

100

1000

10000

100000

1000000

600 A

400 A

200 A

100 A

60 A

30 A

PEAK LET-THRU IN AMPERES

AVAILABLE FAULT CURRENT

SYMMETRICAL R. M. S. AMPERES

05567005

VOLTAGE SERIES AMP CATALOG

NUMBER

ORDERING

NUMBER

600 JLS 110 JLS110 0JLS110.X

Ordering Information

Web Resources

Download TC curves, CAD drawings and other technical

information: littelfuse.com/jls

Recommended Fuse Holders

LFJ60 Series ...................................................................... 85

LFPSJ Series (8⁄10 –60 A) .......................................................111

Peak Let-Thru Curve

JLS

Fuses – UL Class J

UL Class J Fuses

CLASS J DIMENSIONS AND CURRENT-LIMITING EFFECTS

Fig. 1 Fig. 2

Dimensions Inches (mm)

Current-Limiting Effects of JTD_ID (600 V) Fuses

SHORT CIRCUIT

CURRENT†

APPARENT RMS SYM MET RI CAL CURRENT FOR VARIOUS FUSE RATINGS

15 A 30 A 60 A 100 A 200 A 400 A 600 A

5,000 565 750 1,500 1,800 2,800 4,800 5,000

10,000 675 925 1,900 2,450 3,600 5,700 7,750

15,000 775 1,050 2,100 2,800 4,100 6,500 9,000

20,000 825 1,125 2,300 3,000 4,400 7, 25 0 9,700

25,000 900 1,200 2,500 3,300 5,000 8,000 10,500

30,000 950 1,300 2,600 3,500 5,100 8,400 11,000

35,000 1,000 1,350 2,700 3,700 5,400 9,000 12,000

40,000 1,050 1,400 2,800 3,900 5,600 9,200 12,500

50,000 1,100 1,500 3,000 4,200 6,000 10,000 13,000

60,000 1,200 1,600 3,200 4,500 6,400 10,500 14,000

80,000 1,300 1,700 3,400 4,900 7,200 11,200 15,500

100,000 1,375 1,800 3,600 5,200 7,80 0 12,200 16,500

150,000 1,500 2,000 3,950 6,000 9,000 14,500 19,000

200,000 1,600 2,175 4,000 6,500 10,000 16,000 20,500

†Prospective RMS Symmetrical Amperes Short-Circuit Current

Note: Data derived from Peak Let-Thru Curves

*70-100 A JLS dimension = 1 (25.4)

AMPERES FIGURE

NUMBER

DIMENSIONS INCHES (mm)

A B C D E F G H

1 – 30 1 21⁄4 (57.2) —1⁄2 (12.7) 13 ⁄16 (20.6) — — — —

35 – 60 1 23⁄8 (60.3) —5⁄8 (15.9) 11⁄16 (2 7.0) — — — —

70 – 100 2 25⁄8 (66.7) 317⁄32 (89.7) 323⁄32 (94.5) 45⁄8 (117.5) 11⁄8 (28.6)* 3⁄4 (19.1) 9⁄32 (7.1) 1⁄8 (3.2)

110 – 200 23 (76.2) 49⁄32 (108.7) 415 ⁄32 (113.5) 53⁄4 (146.1) 11⁄2 (38.1) 11⁄8 (28.6) 9⁄32 (7.1) 3⁄16 (4.8)

225 – 400 2 33⁄8 (85.7) 51⁄8 (130.2) 53⁄8 (136.5) 71⁄8 (181.0) 2 (50.8) 15⁄8 (41.3) 13⁄32 (10.3) 1⁄4 (6.4)

450 – 600 2 33⁄4 (95.3) 527⁄32 (148.4) 65⁄32 (156.4) 8 (203.2) 21⁄2 (63.5) 2 (50.8) 17⁄32 (13.5) 3⁄8 (9.5)

Dimensions of JTD_ID, JTD and JLS

UL Class T Fuses

Fuses – UL Class T

JLLN / JLLS SERIES FUSES

300/600 Vac • Fast-Acting • 1-1200 A

Description

JLLN / JLLS fuses are less than 1/3 the size of comparable

Class R fuses and are typically used for short circuit

protection of drives and surge sensitive components.

When rated in accordance with the NEC®, JLLN / JLLS

fuses provide fast-acting overload and short circuit

protection for non-inductive circuits and equipment.

Features/Beneﬁts

• Extremely current-limiting

• Compact design

• 200 kA Interrupting Rating

• JLLN 35-60 A available with PCB mounts (see datasheet)

Applications

• Variable speed drive protection

• Compact mains switches

Speciﬁcations

Voltage Ratings AC: 600 V (JLLS)

300 V (JLLN)

DC: 300 V (JLLS)

160 V (JLLN 1 – 60 A)

125 V (JLLN 70 – 1200 A)

Ampere Range 1 – 1200 A

Interrupting Ratings AC: 200 kA rms symmetrical

DC: 20 kA

Approvals AC: Standard 248-15, Class T

UL Listed (File: E81895):

JLLN (1 – 1200 A) JLLS (1 – 800 A)

UL Recognized (File: E71611)

JLLS (900 – 1200 A)

CSA Certiﬁed (File: LR29862)

JLLN/JLLS (1 – 600 A)

DC: UL Listed (File: E81895):

JLLN (35 – 1200 A)

Littelfuse self-certiﬁed

JLLN (1 – 30 A) JLLS (1 – 1200 A)

Material JLLS: 1-30 A: Melamine body, Copper caps

35-60 A: Melamine body, Bronze caps

70-1200 A: Melamine body, Copper caps

JLLN: 1-30 A: Melamine body, Bronze caps

35-1200 A: Melamine body, Copper caps

Environmental RoHS Compliant

*JL L S only

Note: Contact the factory for RoHS compliant Class T fuses.

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/jlln

littelfuse.com/jlls

Recommended Fuse Holders

LFT30 Series ...................................................................... 94

LFT60 Series ...................................................................... 94

LSCR Series for 700-800 A .............................................. 120

Dimensions

Please refer to the Class T dimensions .............................. 25

Peak Let-Thru Curve

Note: For more information, see Peak Let-Thru Table on pg. 25

Ordering Information

SERIES VOLTAGE AMP CATALOG

NUMBER

ORDERING

NUMBER

JLLS 600 V 6JLLS006 JLLS006.T

JLLN 300 V 10 JLLN010 JLLN010.T

JLLS

AMPERE RATINGS

1 25 70 175 450 1100

2 30 80 200 500 1200

3 35 90 225 600

6 40 100 250 700

10 45 110 300 800

15 50 125 350 900*

20 60 150 400 1000

Fuses – UL Class T

UL Class T Fuses

CLASS T DIMENSIONS AND CURRENT-LIMITING EFFECTS

Fig. 1 Fig. 2 Fig. 3

Current-Limiting Effects of JLLS (600 V) fuses

SHORT

CIRCUIT

CURRENT*

APPARENT RMS SYMMETRICAL CURRENT FOR

VARIOUS FUSE RATINGS

30 A 60 A 100 A 200 A 400 A 600 A 800 A 1200 A

5,000 750 1,225 1,810 2,500 4,600 5,000 5,000 5,000

10,000 945 1,525 2,300 3,150 6,000 8,500 9,400 10,000

15,000 1,050 1,700 2,610 3,600 6,600 9,750 10,500 13,000

20,000 1,150 1,900 2,900 3,950 7,25 0 10,500 11,000 14,750

25,000 1,300 2,050 3,100 4,250 8,000 11,500 12,500 15,500

30,000 1,375 2,150 3,300 4,500 8,250 12,000 13,750 16,500

35,000 1,400 2,250 3,500 4,750 8,500 13,000 14,000 17,000

40,000 1,425 2,400 3,650 4,950 8,700 14,000 14,750 18,000

50,000 1,600 2,450 3,900 5,350 9,500 14,500 16,000 20,000

60,000 1,650 2,625 4,150 5,650 10,000 15,500 17, 300 21,000

80,000 1,825 2,800 4,570 6,250 11,000 17,000 18,750 23,000

100,000 2,000 3,100 4,950 6,700 12,000 18,000 20,000 25,000

150,000 2,250 3,400 5,650 7,70 0 13,000 21,000 23,000 28,500

200,000 2,450 3,800 6,200 8,450 15,000 23,000 25,000 31,000

*Prospective RMS Symmetrical Amperes Short-Circuit Current

Note: Data Derived from Peak Let-Thru Curves

Current-Limiting Effects of JLLN (300 V) fuses

SHORT

CIRCUIT

CURRENT*

APPARENT RMS SYMMETRICAL CURRENT FOR

VARIOUS FUSE RATINGS

30 A 60 A 100 A 200 A 400 A 600 A 800 A 1200 A

5,000 700 775 1,100 1,650 3,500 4,000 5,000 5,000

10,000 900 1,000 1,400 2,100 4,400 5,100 6,750 8,250

15,000 1,000 1,100 1,600 2,400 5,000 5,900 7,75 0 10,000

20,000 1,100 1,250 1,800 2,700 5,500 6,500 8,750 11,000

25,000 1,230 1,300 1,950 2,900 6,000 7,000 9,500 12,000

30,000 1,300 1,475 2,050 3,100 6,400 7,500 10,000 12,500

35,000 1,330 1,575 2,150 3,300 6,750 7,7 50 10,500 13,500

40,000 1,430 1,600 2,300 3,500 7,000 8,000 11,000 14,000

50,000 1,500 1,750 2,400 3,700 7,500 8,750 12,000 15,000

60,000 1,700 1,900 2,700 4,000 8,000 9,500 12,500 16,000

80,000 1,850 2,100 2,800 4,400 9,000 10,500 14,000 17,500

100,000 2,000 2,250 3,150 4,800 9,750 11,500 15,000 18,500

150,000 2,300 2,600 3,600 5,500 11,000 13,000 17,500 22,000

200,000 2,600 2,800 3,900 6,000 12,000 14,500 19,500 24,000

*Prospective RMS Symmetrical Amperes Short-Circuit Current

Note: Data Derived from Peak Let-Thru Curves

Dimensions Inches (mm)

AMPERES FIGURE

NUMBER SERIES DIMENSIONS INCHES (mm)

A B C D E F G

1 – 30 1JLLN 7⁄8 (22.2) —9⁄32 (7.1) 13 ⁄32 (10.3) — — —

JLLS 11⁄2 (38.1) —9⁄32 (7.1) 9⁄16 (14.3) — — —

35 – 60 1JLLN 7⁄8 (22.2) —9⁄32 (7.1) 9⁄16 (14.3) — — —

2JLLS 19⁄16 (39.7) 13⁄16 (20.6) 13 ⁄32 (10.3) 1 (25.4) 1⁄16 (1.6) 13⁄32 (2 7.8) —

70 – 100 3JLLN 25⁄32 (54.8) 19⁄16 (39.7) 3⁄4 (19.1) 13 ⁄16 (20.6) 27⁄32 (21.4) 9⁄32 (7.1) 1⁄8 (3.2)

JLLS 261⁄64 (75.0) 223⁄64 (59.9) 3⁄4 (19.1) 13⁄16 (20.6) 141⁄64 (41.7) 9⁄32 (7.1) 1⁄8 (3.2)

110 – 200 3JLLN 27⁄16 (61.9) 111 ⁄16 (42.9) 7⁄8 (22.2) 11⁄16 (27.0) 27⁄32 (21.4) 11⁄32 (8.7) 3⁄16 (4.8)

JLLS 31⁄4 (82.6) 21⁄2 (63.5) 7⁄8 (22.2) 11⁄16 (2 7.0) 121⁄32 (42.1) 11 ⁄32 (8.7) 3⁄16 (4.8)

225 – 400 3JLLN 23⁄4 (69.9) 127⁄32 (46.8) 1 (25.4) 15⁄16 (33.3) 53⁄64 (21.0) 13 ⁄32 (10.3) 1⁄4 (6.4)

JLLS 35⁄8 (92.1) 223⁄32 (69.1) 1 (25.4) 119 ⁄32 (40.5) 123⁄32 (43.7) 13 ⁄32 (10.3) 1⁄4 (6.4)

450 – 600 3JLLN 31⁄16 (7 7.8) 21⁄32 (51.6) 11⁄4 (31.8) 119 ⁄32 (40.5) 7⁄8 (22.2) 31⁄64 (12.3) 5⁄16 (7.9)

JLLS 363⁄64 (101.2) 261⁄64 (75.0) 11⁄4 (31.8) 21⁄16 (52.4) 149⁄64 (44.8) 31⁄64 (12.3) 5⁄16 (7.9)

700 – 800 3JLLN 33⁄8 (85.7) 27⁄32 (64.3) 13⁄4 (44.5) 21⁄16 (52.4) 7⁄8 (22.2) 35⁄64 (13.9) 3⁄8 (9.5)

JLLS 421⁄64 (109.9) 311⁄64 (80.6) 13⁄4 (44.5) 21⁄2 (63.5) 155⁄64 (47.2) 35⁄64 (13.9) 3⁄8 (9.5)

900 – 1200 3JLLN 4 (101.6) 217⁄32 (64.3) 2 (50.8) 21⁄2 (63.5) 11⁄32 (26.2) 39⁄64 (15.5) 7⁄16 (11.1)

JLLS 5.27 (133.9) 3.80 (96.5) 2 (50.8) 2.63 (66.8) 2.30 (58.4) 0.67 (15.5) 0.44 (11.2)

UL Class G Fuses

Fuses – UL Class G

SLC SERIES FUSES

480/600 Vac • Time-Delay • 1/2-60 A

AMPERE RATINGS

1/23 6 12 25 40 60

1 4 8 15 30 45

2 5 10 20 35 50

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/slc

Recommended Fuse Holders

LFG60 Series (1-20 A) ........................................................ 99

LFG48 Series (25-60 A) ...................................................... 99

AMPERES DIMENSIONS INCHES (mm)

A B C D

1/2 – 15 1 5/16 (33.3) 3/8 (9.5) 9/32 (7.1) 13/32 (10.3)

20 1 13/32 (35.7) 3/8 (9.5) 9/32 (7.1) 13/32 (10.3)

25, 30 1 5/8 (41.3) 3/8 (9.5) 9/32 (7.1) 13/32 (10.3)

35 – 60 2 1/4 (57.2) 3/8 (9.5) 1/2 (12.7) 13/32 (10.3)

Dimensions

Ordering Information

SERIES AMP CATALOG NUMBER ORDERING NUMBER

SLC 10 SLC010 0SLC010.T

Description

Littelfuse SLC fuses provide cost effective branch circuit

protection. Fuse length varies to prevent over-fusing.

Compact Class G fuses were the ﬁrst fuse series to

approach midget fuse dimensions and meet NEC®

requirements for branch-circuit protection.

Features/Beneﬁts

• Branch circuit rated

• Current-limiting

• 100 kA interrupting rating

• 600 Vac rated 1/2-20 A

Applications

• Branch circuit protection

Speciﬁcations

Voltage Ratings AC: 600 Vac or less (1/2 – 20 A)

480 Vac or less (25 – 60 A)

DC: 170 Vdc (Littelfuse self-certiﬁed)

Ampere Range 1/2 – 60 A

Interrupting Ratings AC: 100 kA rms symmetrical

DC: 10 kA

Approvals Standard 248-5, Class G

UL Listed (File: E81895)

CSA Certiﬁed (File: LR29862)

Federal Speciﬁcation WF-1814

(QPL-W-F-1814)

Material 1/2-30 A: Melamine body,

Bronze cap (nickel plated)

35-60 A: Melamine body

Brass cap (silver plated)

Environmental RoHS Compliant

UL Class CC/CD Fuses

Fuses – UL Class CC / CD

CCMR SERIES POWR-PRO® FUSES

600 Vac • Dual Element • Time-Delay • 2/10-60 A

AMPERE RATINGS

2/10 1 2 3 1/26 1/412 35

1/41 1/42 1/44 7 15 40

3/10 1 4/10 2 1/24 1/27 1/217 1/245

1/21 1/22 8/10 5 8 20 50

6/10 1 6/10 3 5 6/10 9 25 60

8/10 1 8/10 3 2/10 6 10 30

Web Resources

Download TC Curves, CAD drawings and other technical

information: littelfuse.com/ccmr

Recommended Fuse Holders

LFC600 Series ..................................................................101

L60030C Series ................................................................101

LFPSC Touch-Safe Series ..................................................110

Dimensions

Please refer to the Class CC/CD dimensions .................... 29

Peak Let-Thru Curve

10,000

100,000

1,000,000

PEAK LET- THRU IN AMPERES

60A -

30A -

15A-

4A-

2.25A-

100

1,000

000,001000,01000,1001

AVAILABLE FAULT CURRENT

SYMMETRICAL R.M.S. AMPERES

BASIS FOR DATA:

TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER:

DRAWN BY:

DATE:

REVISION:

DRAWING NO.: SHEET

PEAK LET-THRU CHARACTERISTIC CURVES

LITTELFUSE, INC.

CHICAGO, IL. USA

LLL

11/12/12

9 OF 9

FCC05-CCMRP

CCMRP 2.25A - 30A

FOR CATALOG PAGE ONLY

- DATA GENERATED IN EXCEL -

Note: For more information, see Peak Let-Thru Table on pg. 29

Ordering Information

* Consult Motor Protection Tables on page 208 in the Technical Application Guide

section for specific motor sizing information.

SERIES AMP ROHS CATALOG NUMBER ORDERING NUMBER

CCMR 10 •CCMR010 CCMR010.TXP

CCMR 45 CCMR045 CCMR045.T

Description

The CCMR series is ideal for space saving protection

of motors up to 40 hp*. It was designed speciﬁcally to

withstand sustained starting currents of small motors. The

CCMR 60 fuse is the smallest 60 A fuse available rated at

600 V. Compared to other UL Listed fuses, Class CC fuses

are the most current-limiting, rating for rating.

Features/Beneﬁts

• POWR-PRO® Performance

• Extremely current-limiting

• Ratings up to 60 Amps

• 300 kA Interrupting Rating (self-certiﬁed)

Applications

• Motor and motor branch circuit protection

Speciﬁcations

Voltage Rating AC: 600 Vac or less

DC: 250 V (CCMR 2/10 – 2 A)

(CCMR 41/2– 10 A)

(CCMR 35– 60 A)

300 V (CCMR 21/4– 4 A)

500 V (CCMR 12– 30 A)

Ampere Rating 2/10 – 60 A

Interrupting Rating AC: 200 kA rms symmetrical

300 kA Littelfuse self-certiﬁed

DC: 20 kA

Approvals AC: Standard 248-4, Class CC

UL Listed 2/10-30 A (File: E81895)

Standard 248, Class CD

UL Listed 35-60 A (File: E81895)

CSA Certiﬁed (File: LR29862)

DC: Littelfuse self-certiﬁed

Material 2/10-30 A: Melamine body,

Bronze cap (nickel plated)

Environmental RoHS Compliant (except 35-60 A)

Country of Origin Mexico

UL Class CC Fuses

Fuses – UL Class CC

Speciﬁcations

Voltage Rating AC: 600 Vac or less

DC: 300 Vdc

Ampere Range 1/10 – 30 A

Interrupting Rating AC: 200 kA rms symmetrical

DC: 20 kA

Approvals AC: Standard 248-4, Class CC

UL Listed 1/10-30 A (File: E81895)

CSA Certiﬁed 1/10 -30 A (File: LR29862)

DC: Littelfuse self-certiﬁed

Material Melamine body

Bronze caps (nickel plated)

Environmental RoHS Compliant

Country of Origin Mexico

KLDR / KLKR SERIES FUSES

KLKR Series

600 Vac/300 Vdc • Fast-Acting • 1/10-30 A

KLDR Series

600 Vac/300 Vdc • Time-Delay • 1/10-30 A

Description

KLKR Series Class CC fuses are fast-acting

fuses intended for general purpose branch

circuit protection. Their compact size, fast-

acting overload response, and highly current-

limiting design make them ideal for use in

OEM equipment and control panels.

Speciﬁcations

Voltage Rating AC: 600 Vac or less

DC: 300 Vdc

Ampere Range 1/10 – 30 A

Interrupting Rating AC: 200 kA rms symmetrical

DC: 20 kA

Approvals AC: Standard 248-4, Class CC

UL Listed 1/10-30 A (File: E81895)

CSA Certiﬁed 1/10 -30 A (File: LR29862)

DC: Littelfuse self-certiﬁed

Material Melamine body

Bronze caps (nickel plated)

Environmental RoHS Compliant

Country of Origin Mexico

AMPERE RATINGS

1/10 6/10 1 8/10 4 1/210

1/83/42 5 12

15/100 8/10 2 1/45 6/10 15

3/16 1 2 1/26 17 1/2

2/10 1 1/82 8/10 6 1/420

1/41 1/43 7 25

3/10 1 4/10 3 2/10 7 1/230

4/10 1 1/23 1/28 —

1/21 6/10 4 9 —

AMPERE RATINGS

1/10 1/22 1/26 12

1/83/43 7 15

2/10 13 1/28 20

1/41 1/24 9 25

3/10 2 5 10 30

Ordering Information

SERIES AMP CATALOG

NUMBER

ORDERING

NUMBER

KLDR 10 KLDR010 KLDR010.T XP

Ordering Information

SERIES AMP CATALOG

NUMBER

ORDERING

NUMBER

KLKR 12 KLKR012 KLKR012.T

Recommended Fuse Holders

L60030C Series .................................................... 101

LFPSC Touch-Safe Series ...................................... 110

Dimensions

Please refer to the Class CC dimensions ............... 29

Recommended Fuse Holders

L60030C Series .................................................... 101

LFPSC Touch-Safe Series ...................................... 110

Dimensions

Please refer to the Class CC dimensions ............... 29

Web Resources

For additional information, visit:

littelfuse.com/klkr

Web Resources

For additional information, visit:

littelfuse.com/kldr

Description

KLDR fuses are time-delay fuses designed to

protect control transformers, so le noids and

similar inductive components with high mag-

ne tiz ing currents during the ﬁrst half-cycle.

They provide ex cel lent protection of motor

branch circuits con tain ing IEC or NEMA

rated motor con trol lers or contactors.

UL Class CC/CD Fuses

Fuses – UL Class CC / CD

1.880

(47.8)

.850

(21.6)

1.50

(38.1)

.50

(12.7)

.41

(10.3)

.25

(6.4)

.125

(3.2)

35-60 A

0-30 A

CLASS CC / CD DIMENSIONS AND CURRENT-LIMITING EFFECTS

Dimensions Inches (mm)

- DATA GENERATED IN EXCEL -

100

1,000

10,000

100,000

1,000,000

100 1,000 10,000 100,000

PEAK LET- THRU IN AMPERES

AVAILABLE FAULT CURRENT

SYMMETRICAL R.M.S. AMPERES

8A -

6A -

4A -

BASIS FOR DATA:

TEST VOLTAGE: TIME CONSTANT/POW ER FACTOR: FUSE CATALOG NUMBER:

DRAWN BY:

DATE:

REVISION:

DRAWING NO.: SHEET

PEAK LET-THRU CHARACTERISTIC CURVES

LITTELFUSE, INC.

CHICAGO, IL. USA

LLL

11/12/12

2 OF 4

FCC05-KLDRP

KLDRP 4A - 30A

10000

100000

200000

100

1000

100

1000

10000

100000

1000000

30 A

25 A

20 A

15 A

12 A

PEAK LET-THRU IN AMPERES

AVAILABLE FAULT CURRENT

SYMMETRICAL R. M. S. AMPERES

05542001

Peak Let-Thru Curve KLDR Peak Let-Thru Curve KLKR

SHORT

CIRCUIT

CURRENT*

APPARENT RMS SYMMETRICAL CURRENT FOR VARIOUS FUSE RATINGS

2.25A 2.5A 3A 4A 5A 6.25A 7.5A 8A 10A 12A 15A 20A 30A 35A 40A 45A 50A 60A

5,000 203 224 287 289 460 472 442 437 359 369 435 355 621 1,170 1,240 1,320 1,070 1,525

10,000 256 282 361 364 580 595 557 551 452 465 548 447 783 1,480 1,565 1,670 1,355 1,930

15,000 293 323 413 416 664 681 637 631 517 532 627 512 896 1,695 1,795 1,915 1,555 2,200

20,000 323 356 455 458 730 750 702 694 569 585 690 563 987 1,870 1,980 2,110 1,710 2,430

25,000 348 383 490 493 787 808 756 748 613 630 743 607 1,063 2,015 2,135 2,275 1,845 2,620

30,000 370 407 521 524 836 858 803 795 651 670 790 645 1,129 2,145 2,270 2,420 1,965 2,780

35,000 389 429 548 552 880 903 845 837 686 705 832 679 1,189 2,260 2,390 2,550 2,070 2,885

40,000 407 448 573 577 920 944 884 875 717 737 870 709 1,243 2,360 2,500 2,665 2,165 3,025

50,000 438 483 617 622 991 1,017 952 942 772 794 937 764 1,339 2,545 2,695 2,875 2,330 3,200

60,000 466 513 656 661 1,053 1,081 1,012 1,001 821 844 995 812 1,423 2,705 2,865 3,055 2,480 3,350

80,000 513 564 722 727 1,159 1,190 1,114 1,102 903 929 1,096 894 1,566 2,985 3,160 3,365 2,730 3,540

100,000 552 608 778 783 1,249 1,282 1,200 1,187 973 1,001 1,180 963 1,687 3,215 3,405 3,630 2,945 3,685

150,000 632 696 890 897 1,430 1,467 1,373 1,359 1,114 1,146 1,351 1,102 1,931 3,685 3,905 4,160 3,375 4,030

200,000 696 766 980 987 1,574 1,615 1,511 1,496 1,226 1,261 1,487 1,213 2,125 4,060 4,300 4,580 3,720 4,230

*Prospective RMS Symmetrical Amperes Short-Circuit Current

Note: Data Derived from Peak Let-Thru Curves

Current-Limiting Effects of CCMR (600 V) fuses

UL Supplemental Fuses

Fuses – UL Supplemental

10 x 38mm MIDGET FUSES

KLKD Series

Fast-Acting Fuse

600 Vac/dc

FLM Series

Time-Delay Fuse

250 Vac

QPL

FLQ Series

Time-Delay Fuse

500 Vac

BLF Series

Laminated Fast-Acting Fuse

125/250 Vac

AMPERE RATINGS

1/10 1 5 15

1/81 1/2620

2/10 2 7 25

1/42 1/2830

3/10 3 9 —

1/23 1/210 —

3/4412 —

AMPERE RATINGS

1/10 1 5 15

1/81 1/2620

2/10 2 7 25

1/42 1/2830

3/10 3 9 —

1/23 1/210 —

3/4412 —

AMPERE RATINGS

1/10 8/10 24 1/210

15/100 12 1/4512

2/10 1 1/82 1/25 6/10 15

1/41 1/42 8/10 620

3/10 1 4/10 36 1/425

4/10 1 1/23 2/10 730

1/21 6/10 3 1/28 —

6/10 1 8/10 4 9 —

AMPERE RATINGS

1/10 1/22 5 12

1/86/10 2 1/45 6/10 14

15/100 8/10 2 1/2615

3/16 1 3 6 1/420

2/10 1 1/83 2/10 725

1/41 1/43 1/2830

3/10 1 1/24 9 —

4/10 1 6/10 4 1/210 —

AMPERE RATINGS

1 3 6 12 25

1 1/24 8 15 30

2 5 10 20 —

AMPERE RATINGS

1/23 7 15

1 4 8 20

1 1/25 9 25

2 6 10 30

2 1/26 1/412 —

Speciﬁcations

Fast-acting, high-interrupting capacity fuse

designed for control circuits, HID lighting,

street-lighting, meter circuits.

Voltage Ratings 600 Vac

500 Vdc

Interrupting Ratings 100 kA @ 600 Vac

50 kA @ 500 Vdc

(capable of 200 kA)

Approvals UL Listed (E10480)

CSA Certiﬁed (LR29862)

Dimensions L 38.1mm (1 1/2”)

D 10.31mm (13/32”)

littelfuse.com/klk

Speciﬁcations

Fast-acting, high DC rated fuse used in solar

combiner boxes, DC control circuits, UPS

protection. Available in PC board mount.

Voltage Ratings 600 Vac/dc

Interrupting Ratings 100 kA @ 600 Vac

10 kA @ 600 Vdc (UL2579)

50 kA @ 600 Vdc (UL248-14)

(capable of 200 kA)

Approvals UL Listed (E339112 & E10480)

CSA Certiﬁed (LR29862)

Dimensions L 38.1mm (1 1/2”)

D 10.31mm (13/32”)

littelfuse.com/klkd

Speciﬁcations

250V time-delay fuses used to protect

circuits with high in-rush. Especially suited for

supplemental protection of small motors.

Voltage Ratings 250 Vac

125 Vdc self-certiﬁed @ 10 kA

Interrupting Ratings 10 kA @ 250 Vac

Approvals UL Listed (File: E10480)

CSA Certiﬁed (029862_0_000)

Dimensions L 38.1mm (1 1/2”)

D 10.31mm (13/32”)

littelfuse.com/ﬂm

Speciﬁcations

500V time-delay fuses for supplemental

protection of control power transformers,

solenoids, and circuits with high in-rush. Ideal

for 480 V systems.

Voltage Ratings 500 Vac

300 Vdc self-certiﬁed @ 10 kA

Interrupting Ratings 10 kA @ 500V ac

Approvals UL Listed (E10480)

CSA Certiﬁed (LR29862)

Dimensions L 38.1mm (1 1/2”)

D 10.31mm (13/32”)

littelfuse.com/ﬂq

Speciﬁcations

Fiber tube, 250 volt BLN fuses provide low-

cost protection for military applications and

control circuits.

Voltage Ratings 250 Vac

Interrupting Ratings 10 kA @ 250 Vac

Approvals UL Listed (E10480)

CSA Certiﬁed (LR29862)

Dimensions L 38.1mm (1 1/2”)

D 10.31mm (13/32”)

littelfuse.com/bln

Speciﬁcations

Laminated tube BLF fuses are the lowest price

midget fuse. They are suitable for control circuit

and instrument protection in dry locations.

Voltage Ratings 250 Vac 1/2 - 15 A

125 Vac 20 - 30 A

Interrupting Ratings 10 kA @ rated Vac

Approvals UL Listed (E10480)

CSA Certiﬁed (LR29862)

Dimensions L 38.1mm (1 1/2”)

D 10.31mm (13/32”)

littelfuse.com/blf

KLK Series

Fast-Acting Fuse

600 Vac

QPL

BLN Series

Fiber Body Fast-Acting Fuse

250 Vac

QPL

TOUCH SAFE

LFPSM (600 V)

pg. 110

LFPHV (1000 V)

pg. 109

Fuses – UL Supplemental

UL Supplemental Fuses

10 x 38mm MIDGET FUSES

BLS Series

Fast-Acting Fuse

600 Vac / 250 Vac

KLQ Series

Increased Time-Delay

600 Vac

AMPERE RATINGS

2/10 1 3 8

4/10 1 1/2410

1/21 6/10 5 —

3/41 8/10 6 —

8/10 2 7 —

AMPERE RATINGS

125

1 6/10 3 6

Speciﬁcations

Slightly shorter than a traditional 10 x 38, BLS

fuses provide space saving protection for low

amperage applications.

Voltage Ratings 600 Vac 2/10 - 5 A

250 Vac 6 - 10 A

Interrupting Ratings 10 kA @ rated Vac

Approvals UL Listed (E10480)

CSA Certiﬁed (LR29862)

Dimensions L 34.9 mm (1 3/8”)

D 10.31 mm (13/32”)

littelfuse.com/bls

Speciﬁcations

Same physical size as the BLS fuse with more

time delay. Designed to protect gaseous vapor

ﬁxtures, HID ballasts and other electronic

lighting circuits.

Voltage Ratings 600 Vac

Interrupting Ratings 10 kA @ rated Vac

Approvals UL Listed (E10480)

CSA Certiﬁed (LR29862)

Dimensions L 34.9 mm (1 3/8”)

D 10.31 mm (13/32”)

littelfuse.com/klq

FLA Series

Time-Delay Pin Indicating Fuse

125 Vac

AMPERE RATINGS

1/10 8/10 24 1/212*

15/100 12 1/4515*

2/10 1 1/82 1/25 6/10 20*

1/41 1/42 8/10 625*

3/10 1 4/10 36 1/430*

4/10 1 1/23 2/10 7 —

1/21 6/10 3 1/28 —

6/10 1 8/10 410 —

*12-30 A are dual tube design

Speciﬁcations

Pin indicating time-delay fuses. Use in

conjunction with special fuse blocks to

operate mechanical signal switches or

energize alarm circuits.

Voltage Ratings 125 Vac

Interrupting Ratings 10 kA @ rated Vac

Approvals UL Listed (E10480)

Dimensions L 38.1 mm (1 1/2”)

D 10.31 mm (13/32”)

littelfuse.com/ﬂa

Speciﬁcations

Multimeter protection fuses.

Voltage Rating 1000 Vac/Vdc

Interrupting Rating 44⁄100 A: 10 kA

11 A: 20 kA

Ampere Ratings 44⁄100 & 11 A

Time Constant 10 ms

Approvals UL Recognized (E10480)

CSA Certified (LR29862)

Dimensions 44⁄100 A: 13⁄32” x 13⁄8”

11 A: 13⁄32” x 11⁄2”

littelfuse.com/ﬂu

10 x 38 Midget Fuse Holder Conﬁgurations

OPEN FUSE BLOCK PC BOARD MOUNT

FUSE BLOCK

L60030M

pg. 101

L60030MPCB

pg. 103

FLU Series

Multimeter Protection

1000 Vac/dc

Glass / Electronic Fuses ............................................................. 33

Blade / Automotive Fuses ........................................................... 36

ELECTRONIC FUSES AND BLADE FUSES

Table of Contents

Section Overview

Diverse application needs require a broad range of fuses. Littelfuse

offers a full line of fuses for various applications. As the market leader

in Automotive and Electronics fuses, we are able to deliver innovative

circuit protection solutions to our customers. Visit littelfuse.com for

our full line of Automotive and Electronics solutions.

Glass / Electronic Fuses

HIGH DC VOLTAGE AND PC BOARD MOUNT FUSES

505 Series

Lead-Free 3AB, Fast-Acting

477 Series

5 x 20 mm Slo-Blo® Fuse

Dimensions mm (inches)

273 Series

Very Fast-Acting Microfuse

251 Series

Fast-Acting Pico® II Fuse

451 Series

NANO2® Very Fast-Acting

AMPERE RATINGS

10 16 25

12 20 30

AMPERE RATINGS

.5 2 5 10

.8 3.15 6.3 12

1 4 8 16

AMPERE RATINGS

.002 .031 .125 .400 .750 2

.005 .050 .200 .500 .800 3

.010 .062 .250 .600 1 4

.015 .100 .300 .700 1.5 5

AMPERE RATINGS

0.062 0.25 0.630 1.5 3.15 7

0.1 0.315 0.750 1.6 3.5 8

0.125 0.375 0.800 2 4 10

0.160 0.400 12.5 512

0.2 0.5 1.25 36.3 15

AMPERE RATINGS

.062 .500 1.25 3 7

.125 .630 1.5 3.5 10

.250 .750 2 4 12

.375 12.5 515

Add “L” suffix when

ordering RoHS compliant

451 series

Speciﬁcations

A 500 Vac/Vdc rated ceramic fuse with

remarkable interrupting rating in a compact

6.3 x 32 mm package, well suited for circuit

protection in high energy applications.

Voltage Rating 450 Vac (10 – 12 A)

250 Vdc (10 – 12 A)

500 Vac/dc (16 – 30 A)

Sample Part 0505010.MXP*

Axial Lead 505_XEP Series

Dimensions L 31.75 mm (1.25”)

D 6.35 mm (.25”)

littelfuse.com/505

*Bulk configurations only

Speciﬁcations

500 Vac/400 Vdc rated, 5 x 20 mm, time-lag,

surge withstand ceramic body fuse.

Voltage Rating 500 Vac

400 Vdc

Sample Part 0477002.MXP*

Axial Lead 477_XEP Series

Dimensions L 20 mm (.79”)

D 5.2 mm (.20”)

littelfuse.com/477

*Bulk configurations only

Speciﬁcations

Similar to 272 and 278 series, except has

transparent cap for visual indication of

fuse status. *See web for approvals by part.

Voltage Rating 125 Vac/dc

Sample Part 0273002.V

littelfuse.com/273

Speciﬁcations

The Nano2 SMF Fuse is a very small, Wire-in-

Air (WIA) square shape surface mount fuse

which is very suitable for the secondary side

circuit over-current protection applications

and is designed for PCB using surface mount

technology

*See web for approvals by part.

Voltage Rating 65 – 125 V

Sample Part 0451.125MP

littelfuse.com/451

L1 A

7.11 (.280")

REF.

0.64 (.025") DIA.

(1/16 – 10A)

0.81 (.032") DIA.

(12 – 15A)

2.80 (.110"

)

DIA. MAX.

6.35

(.25") 8.89

(.35")

4.32

(.17")

2.54 (.10")

314 000P Series 324 000P Series

6.35 (.25)

31.75

(1.25)

32.72

(1.288)

6.985 (.275)

38.1

(1.5)

0.813 (.032)

1.016 (.040)

229 000P Series 230 000P Series

4.5

(.177")

14.48

(.57")

14.48

(.57")

4.7 (.184") .635

(.025")

38.1

(1.50") TYP.

5.1 (.2 2)5.1 (.22)

5.2 (.20)

40 (1.57)22.5 (.89)

max.

6.0 (.24)

max.

.65* (.026)

*Ratings above 6.3 A have 0.8 mm diameter lead.

Ratings above 12 A have 1.2 m diameter lead.

20 (.79)

3AG/3AB

2AG

5 x 20 mm

Fuses – Glass / Electronic

Speciﬁcations

Subminiature fuse for soldered mounting on

printed circuit boards. Available on tape and

reel for automatic insertion. *See web for

approvals by part.

Voltage Ratings 125 Vac/dc 1/16 – 10 A

32 Vac/dc 12 – 15 A

Sample Part 0251001.NAT1L

littelfuse.com/251

Glass / Electronic Fuses

Fuses – Glass / Electronic

LEADED AND CARTRIDGE FUSES

312/318 Series

3AG Fast-Acting

313/315 Series

3AG Slo-Blo®

314/324 Series

3AB Fast-Acting

326/325 Series

3AB Slo-Blo®

229/230 Series

2AG Slo-Blo®

AMPERE RATINGS

.062 .200 .750 1.8 515

.100 .250 12620

.125 .300 1.25 2.25 725

.15 .375 1.5 2.5 830

.175 .500 1.6 310 35

.187 .600 1.75 412 —

225/224 Series

2AG Fast-Acting

AMPERE RATINGS

.010 .175 .500 1.25 2.8 730

.031 .187 .600 1.5 3 8 —

.040 .200 .700 1.6 3.2 10 —

.062 .250 .750 1.8 412 —

.100 .300 .800 2 5 15 —

.125 .375 12.25 6.25 20 —

.150 .400 1.2 2.5 6.3 25 —

AMPERE RATINGS

.375 2 6 12 30

.500 3 7 15 40

.750 4 8 20 —

1 5 10 25 —

AMPERE RATINGS

.010 .187 .600 1.5 415

.031 .200 .700 1.6 520

.062 .250 .750 26.25 25

.100 .300 .800 2.5 730

.125 .375 12.8 8 —

.150 .400 1.2 310 —

.175 .500 1.25 3.2 12 —

AMPERE RATINGS

.250 .750 2 4

.350 .800 2.25 5

.375 12.5 6

.500 1.25 3 7

.600 1.5 3.5 —

AMPERE RATINGS

.375 12.5 4 7

.500 1.5 3 5 8

.750 23.5 610

Speciﬁcations

Designed for fast-acting protection of

electronic equipment and appliances. The

“standard” fast-acting, glass tube fuse.

Voltage Ratings 250 Vac 1/100 – 10 A

32 Vac 12 – 35 A

Dimensions L 31.75 mm (1.25”)

D 6.35 mm (.25”)

Sample Part 0312005.VXP

For fuses with axial leads, request 318 Series.

littelfuse.com/312

Speciﬁcations

313 and 315 series fuses have time-delay

in the overload range, providing superior

protection for inductive loads. ID feature

available which discolors upon opening.

Voltage Ratings 250 Vac 1/100 – 8 A

32 Vac 10 – 30 A

Dimensions L 31.75 mm (1.25”)

D 6.35 mm (.25”)

Sample Part 0313005.VXP

For fuses with axial leads, request 315 Series.

For Fuses with ID, add “ID” suffix.

littelfuse.com/313

Speciﬁcations

Similar to 312 series, but ceramic tube

permits higher interrupting ratings and voltage

ratings: 250 volt ratings to 40 amps.

Voltage Rating 250 Vac 3/8 – 40 A

125 Vdc 3/8 – 30 A

150 Vdc 40 A

Dimensions L 31.75 mm (1.25”)

D 6.35 mm (.25”)

Sample Part 03145005.VXP

For fuses with axial leads, request 324 Series.

littelfuse.com/314

Speciﬁcations

The 326 series fuse has time-delay similar to

the 313 series, but the ceramic body permits

higher voltage ratings for the 8 – 30 ampere

sizes and faster opening of short-circuits.

Voltage Ratings 250 Vac 1/100 – 30 A

125 Vdc 1/4 – 3 A

125 Vdc 12 – 30 A

Dimensions L 31.75 mm (1.25”)

D 6.35 mm (.25”)

Sample Part 0326.100VXP

For fuses with axial leads, request 325 Series.

littelfuse.com/326

Speciﬁcations

2AG indicating fuses instantly identify

themselves upon opening by showing a

discoloration of their glass bodies, eliminating

guesswork. This unique design offers the same

quality performance characteristics as the

standard 2AG fuse design.*

Voltage Ratings 250 Vac 1/4 – 3 1/2 A

125 Vac 4 – 7 A

125 Vdc 1/4 – 7 A

Dimensions L 14.48 mm (.57”)

D 4.5 mm (.177”)

Sample Part 02291.25VXP

For fuses with axial leads, request 230 Series.

*Must add “S” suffix when ordering indicating fuse

littelfuse.com/229

Speciﬁcations

Fast-acting performance of the 312 series

3AG fuses in less than one-third the space.

For protection of electronic equipment

and appliances.

Voltage Ratings 250 Vac 3/8 – 3 1/2 A

125 Vac 4 – 10 A

125 Vdc 3/8 – 3 1/2 A

Dimensions L 14.48 mm (.57”)

D 4.5 mm (.177”)

Sample Part 0225003.VXP

For fuses with axial leads, request 224 Series.

littelfuse.com/225

Note: All fuses on this page are available in packaged and bulk configurations

Glass / Electronic Fuses

Fuses – Glass / Electronic

5 x 20 mm IEC LEADED AND CARTRIDGE FUSES

215 Series

5 x 20 mm IEC Slo-Blo®

216 Series

5 x 20 mm IEC Fast-Acting

217 Series

5 x 20 mm IEC Fast-Acting

218 Series

5 x 20 mm IEC Slo-Blo®

235 Series

5 x 20 mm UL/CSA Fast-Acting

239 Series

5 x 20 mm UL/CSA Slo-Blo®

AMPERE RATINGS

.125 .315 .800 2 5 12

.160 .400 12.5 6.3 15

.200 .500 1.25 3.15 816

.250 .630 1.6 410 20

AMPERE RATINGS

.050 .125 .315 12.5 6.3 16

.063 .160 .500 1.25 3.15 8 —

.080 .200 .630 1.6 410 —

.100 .250 .800 2 5 12.5 —

AMPERE RATINGS

.032 .100 .250 .630 1.6 410

.050 .125 .315 .800 2 5 15

.063 .160 .400 12.5 6.3 —

.080 .200 .500 1.25 3.15 8 —

AMPERE RATINGS

.032 .100 .315 13.15 10

.040 .125 .400 1.25 412.5

.050 .160 .500 1.6 515

.063 .200 .630 26.3 16

.080 .250 .800 2.5 8 —

AMPERE RATINGS

.100 .300 .700 1.60 3.5 7

.125 .400 .800 2 4 —

.200 .500 12.5 5 —

.250 .600 1.25 3 6 —

AMPERE RATINGS

.080 .200 .500 .800 23.20 7

.100 .250 .600 12.5 3.50 —

.125 .300 .700 1.25 3 4 —

.150 .400 .750 1.60 3.15 5 —

Speciﬁcations

Time-delay protection of electronic equipment

and appliances when fuses to International

Standards are required. Replacement fuse

for foreign equipment.

Voltage Rating 250 Vac

Dimensions L 20 mm (.79”)

D 5.2 mm (.20”)

Sample Part 0215005.VXP

For fuses with axial leads, request 215_XEP series.

littelfuse.com/215

Speciﬁcations

Fast-acting protection of electronic equipment

and appliances when fuses to International

Standards are required. Replacement fuse for

foreign equipment.

Voltage Rating 250 Vac

60 Vdc (1.25-3.15, 4-6.3 A only)

Dimensions L 20 mm (.79”)

D 5.2 mm (.20”)

Sample Part 0216005.VXP

For fuses with axial leads, request 216_XEP series.

littelfuse.com/216

Speciﬁcations

Fast-acting protection of electronic equipment

and appliances when fuses to International

Standards are required. Replacement fuse for

foreign equipment.

Voltage Rating 250 Vac

75Vdc (2-3.15 A only)

60 Vdc (6.3, 2.-5 A only)

Dimensions L 20 mm (.79”)

D 5.2 mm (.20”)

Sample Part 0217005.VXP

For fuses with axial leads, request 217_XEP series.

littelfuse.com/217

Speciﬁcations

Time-delay protection of electronic equipment

and appliances when fuses to International

Standards are required. Replacement fuse

for foreign equipment.

Voltage Rating 250 Vac

Dimensions L 20 mm (.79”)

D 5.2 mm (.20”)

Sample Part 0218005.VXP

For fuses with axial leads, request 218_XEP series.

littelfuse.com/218

Speciﬁcations

5 x 20 mm fuses designed to UL and CSA

standards. Fast-acting protection of electronic

equipment and appliances.

Voltage Ratings 250 Vac 1/10 – 3 1/2 A

125 Vac 4 – 7 A

Dimensions L 20 mm (.79”)

D 5.2 mm (.20”)

Sample Part 0235005.VXP

For fuses with axial leads, request 235_XEP series.

littelfuse.com/235

Speciﬁcations

5 x 20 mm fuses designed to UL and CSA

standards. Time-delay protection of electronic

equipment and appliances.

Voltage Ratings 250 Vac 2/10 – 3 1/2 A

125 Vac 4 – 7 A

Dimensions L 20 mm (.79”)

D 5.2 mm (.20”)

Sample Part 0239005.VXP

For fuses with axial leads, request 239_XEP series.

littelfuse.com/239

Note: All fuses on this page are available in packaged and bulk configurations

Fuses – Blade / Automotive

Blade / Automotive Fuses

BLADE FUSES

CURRENT

RATING

HOUSING

COLOR

1 A

2 A

3 A

4 A

5 A

7.5 A

10 A

15 A

20 A

25 A

30 A

40 A

10.90

(.429)

4.46

(.175)

1.00

(.039)

2.58

(.101)

6.15

(.242)

8.10

(.319)

3.81

(.150)

3.56

(.140)

2.21

(.087)

0.80

(.031)

CURRENT

RATING

HOUSING

COLOR

20 A

25 A

30 A

35 A

40 A

50 A

60 A

70 A

80 A

MAXI dimensions in mm (inches)

ATO dimensions in mm (inches)

MAXI™

Color Key

Speciﬁcations

Smart Glow fuses are innovative

automotive style fuses (ATO, MINI, and

MAXI) that feature an indicator light that

glows when the fuse is blown, saving

time to troubleshoot an open circuit.

Voltage Rating 14 Vdc

Sample Part 0MIN010.VPGLO

Speciﬁcations

The MINI® Fuse, with its miniature

design patented by Littelfuse, meets

the need for more circuits to be

protected while utilizing less space.

Voltage Rating 32 Vdc

Sample Part 0MIN020.V

littelfuse.com/mini

Fuses Rated 58 V

Low Proﬁle MINI®

MINI®

Smart Glow

MINI® Fast-Acting

Speciﬁcations

The low proﬁle MINI has similar

performance as the standard mini fuse.

The lower overall height allows for more

space and weight savings.

Voltage Rating 58 Vdc

Sample Part LMIN010.V

littelfuse.com/lmin

MINI dimensions in mm

Low Profile MINI

dimensions in mm (inches)

Speciﬁcations

Smart Glow fuses are innovative

automotive style fuses (ATO, MINI, and

MAXI) that feature indicator light that

glows when the fuse is blown, saving

time to troubleshoot an open circuit.

Voltage Rating 14 Vdc

Sample Part 0ATO010.VPGLO

ATO® Fast-Acting

ATO®

Smart Glow

Speciﬁcations

The ATO® Fuse was designed and

patented by Littelfuse in 1976 and set

the standard for automotive circuit

protection. It features industry standard

color coding to indicate amperage rating.

Voltage Rating 32 Vac/dc

Sample Part 0ATO020.V

littelfuse.com/ato

Speciﬁcations

Smart Glow fuses are innovative

automotive style fuses (ATO, MINI, and

MAXI) that feature an indicator light that

glows when the fuse is blown, saving

time to troubleshoot an open circuit.

Voltage Rating 14 Vdc

Sample Part 0MAX030.XPGLO

Speciﬁcations

Designed and patented by Littelfuse,

the MAXI™ Fuse is ideal for motor

powered applications which have

large inrush currents.

Voltage Rating 32 Vdc

Sample Part 0MAX030.X

littelfuse.com/maxi

ATO® / MINI®

Color Key

MINI Fuses are available in packaged and bulk configurations. See 297 series on web.

ATO Fuses are available in packaged and bulk configurations. See 287 series on web.

MAXI Fuses are available in packaged and bulk configurations. See 299 series on web.

Note: MINI not available in

1 A or 40 A.

MAXI™ Slo-Blo

MAXI™

Smart Glow

Blade / Automotive Fuses

Fuses – Blade / Automotive

BLADE FUSES

Speciﬁcations

The JCASE is a cartridge style fuse

with female terminal design. JCASE

provides both increased time delay

and low voltage drop to protect high

current circuits. JCASE has the ability to

handle in-rush currents. The JCASE was

designed and patented by Littelfuse.

littelfuse.com/jcase

Low Proﬁle JCASE®

Fuse Rated 58 V

JCASE® Cartridge

Fuse Rated 32 V

Speciﬁcations

The Low Proﬁle JCASE fuse has

similar performance characteristics as

the standard JCASE fuse. The lower

overall height reduction allows for

more space and weight savings and

also allows for a shorter male blade

terminal, saving additional weight and

material savings in fuse box designs.

FHAC Blade Fuse Holders—In-Line Splash-Waterproof

Fuse Holder for ATO® Style Blade Fuse

Wire length, color and diameter can be

customized upon request.

Used with ATO Fuse 1 to 20 A or

25 A and 30 A. Supplied with

two 4” (102mm) wire leads.

Includes protective cover for

harsh environments.

littelfuse.com/fha

FHA Blade Fuse Holders—In-Line Fuse Holder

for ATO® Style Blade Fuse

Wire length, color and diameter can be

customized upon request.

Used with ATO Fuse 1 to 20 A or

25 A and 30 A. Supplied with

two 4” (102mm) wire leads.

littelfuse.com/fha

MAH Blade Fuse Holders—In-Line Fuse Holder for

MAXI™ Style Blade Fuse

Supplied with two 6”, 6-gauge wire leads

for up to 60 A MAXI Fuse applications,

this In-Line Fuse holder also provides a

protective cover for harsh under-the-hood

environments. Mounting hole permits

easy bulkhead installation.

littelfuse.com/mah

FHM Blade Fuse Holders—In-Line Splash-Waterproof

Fuse Holder for MINI® Style Blade Fuse

Wire length, color and diameter can be

customized upon request.

Used with MINI Fuse 1 to 20 A

or 25 A and 30 A. Supplied with

two 4.78” (122 mm) wire leads.

Includes protective cover for

harsh environment.

littelfuse.com/fhm

Low Profile JCASE® 58 V

Dimensions in mm

CURRENT

RATING

HOUSING

COLOR

20 A

25 A

30 A

40 A

50 A

60 A

JCASE®

Color Key

0FHA0002

0FHA0001

PART

NUMBER DESCRIPTION FUSE

RATING

0FHA0001_ 16AWG/1.3mm2

STRANDED BLACK WIRE 20 A

0FHA0002_ 12AWG/3.3mm2

STRANDED ORANGE WIRE 30 A

PART

NUMBER DESCRIPTION FUSE

RATING

FHAC0001_ 16AWG/1.3mm2

STRANDED BLACK WIRE 20 A

FHAC0002_ 12AWG/3.3mm2

STRANDED ORANGE WIRE 30 A

PART

NUMBER DESCRIPTION FUSE

RATING

0FHM0001_ 14AWG/2.1mm2

STRANDED BLACK WIRE 20 A

0FHM0002_ 12AWG/3.3mm2

STRANDED ORANGE WIRE 30 A

Dimensions in mm

PART

NUMBER DESCRIPTION FUSE

RATING

0MAH0001Z WIRE COLOR BLACK 60 A

JCASE® 32 V

Dimensions in mm

Dimensions in mm Dimensions in mm

Medium Voltage Fuses Overview .............................................. 39

R-Rated Medium Voltage Fuses ................................................. 40

E-Rated Medium Voltage Fuses ................................................. 42

Medium Voltage Live Parts ......................................................... 48

MEDIUM VOLTAGE FUSES

Table of Contents

Section Overview

Littelfuse is your source for a fast replacement of E- and R-rated

medium voltage fuses. Our emergency service gets you the fuses

you need quickly to minimize downtime of your critical operations.

Fuses – Medium Voltage

Medium Voltage Fuses

Fuses – Medium Voltage

Description

Littelfuse® offers a selection of E- and R-rated medium

voltage fuses for the protection of trans formers, potential

transformers, feeders, and motor circuits. Single, double,

and triple barrel designs are available to cover a wide range

of current, voltage, and interrupting ratings. Conventional

ferrule type, clip lock, and bolt-in mounting conﬁgurations

are available for virtually any application. Hermetically sealed

fuses for use in hazardous environments are also offered.

Contact the factory or your local Littelfuse representative for

additional fuse ratings or custom mounting conﬁgurations.

24-Hour Emergency Service - Call 800-227-0029

Applications

• Power Transformer Protection

• Potential Transformer Protection

• Motor Controller Back-up Protection

• Fused Switches

• Feeder Circuits

General Information

The terms “Medium Voltage” and “High Voltage” have been

used interchangeably by many people to describe fuses

operating above 600 volts. Technically speaking, medium

voltage fuses are those intended for the voltage range from

2,400 to 38,000 Vac. High voltage fuses are for circuits

carrying voltages greater than 38,000 Vac.

E-rated fuses are considered to be general purpose fuses

and can be used to protect against low and high values

of fault current. R-rated fuses are designed for back-up

protection. They must be used in series with other devices

such as motor overload relays in order to achieve both

overload and short-circuit protection.

Medium voltage fuses are not intended to provide overload

protection in the same sense as fuses rated 600 volts or

less. Medium voltage fuse current ratings do not have the

same meanings as the ampere ratings of low voltage fuses.

All medium voltage fuses are limited in their ability to

interrupt low value overcurrents, especially those between

100% and 200% of the fuse’s continuous current rating.

They are designed to carry their rated current without

exceeding the temperature rise permitted by NEMA and

ANSI standards.

Current-limiting E- and R-rated

fuses are equipped with a

mechanical indicator or striker pin

that protrudes through the fuse

cap upon operation of the fuse.

This provides visual identiﬁcation

of a blown fuse and can be used

as a trigger for external devices.

Note: Extension distance 1/2” minimum;

extension force 2 lb. minimum.

MEDIUM VOLTAGE FUSES

2,400-38,000 Vac • Current-Limiting

Bolt-in Mount Fuses

Fuses – Medium Voltage

Medium Voltage Fuses

Fuses

R-RATED MEDIUM VOLTAGE FUSES

Description

R-rated fuses provide required short-circuit protection for

medium voltage motors, motor controllers and associated

circuitry. These components have limited ability to absorb the

energy of large short-circuit currents. Medium voltage motor

controllers contain overload relays which provide both overload

protection and locked rotor protection to the motor. The

controllers are also intended to interrupt low value short-circuits

within the capability of the motor controller. This protects the

medium voltage fuse from sustained overcurrents which are

less than their minimum interrupting rating.

NEMA Standards for R-rated medium voltage power fuses

require they operate within 15-35 seconds when subjected

to an rms current 100 times the R rating. For example, a

fuse with a 2R rating will open within 15 to 35 seconds on

an applied current of 2 x 100 = 200 amperes.

Ordering Number

3"DIA

Dim.A

Clip

Center

6.38"

Dim.B

9.75"

D DD DDD

Figure 1 Figure 2 Figure 3

Hookeye Feature*

For hookeye attachment; add “W” suffix

to part number

* See web for Bolt Mount, Inverted Bolt Mount, and Bolt-In dimensions

Max Voltage (KV)

Style:

C (Cartridge)

B (Bolt Mount)

IB (Inverted Bolt Mount)

BI (Bolt-In Mount)

No. of Barrels

Rating (size)

Continuous Current

Characteristics

Voltage Ratings 2,750 V – 8,250 V

Current Range 2R – 36R

Options

• Hermetically sealed for use in hazardous locations

(add “S” sufﬁx to part number)

• Bolt-in mounting conﬁgurations

Bolt Mount “B”

Sample Part #: 130-4R-1B-5.5

Inverted-Bolt “IB”

Sample Part #: 130-4R-1IB-5.5

Bolt-In Mount “BI”

Sample Part #: 130-4R-1BI-5.5

Cartridge “C”

Dimensions

Medium Voltage

Fuse Protection

POWR-GARD® medium

voltage fuses provide

short-circuit protection

for motors and

transformers rated

2,400 to 38,000 volts AC.

Visit littelfuse.com/MediumVoltage to

download the white paper featuring protection

tables, sizing recommendations, and applications.

130-4R-1C-5.5

Fuses – Medium Voltage

Medium Voltage Fuses

R-RATED MEDIUM VOLTAGE FUSES

RATED

ORDERING/

CATALOG

NUMBER

SIZE

MAXIMUM

CONTINUOUS

CURRENT @

40 DEGREES C°

DIM. A

(INCHES)

DIM. B

(INCHES)

MINIMUM

INTERRUPTING

RATING RMS

AMPS

MAXIMUM

INTERRUPTING

RATING RMS

(ASYM)*

FIGURE

NUMBER

5.5 KV

702R1C5.5 2R 70 12" 15.875" 170 80,000 1

1003R1C5.5 3R 100 12" 15.875" 250 80,000 1

1304R1C5.5 4R 130 12" 15.875" 340 80,000 1

1505R1C5.5 5R 150 12" 15.875" 390 80,000 1

1706R1C5.5 6R 170 12" 15.875" 500 80,000 1

2009R1C5.5 9R 200 12" 15.875" 760 80,000 1

23012R1C5.5 12R 230 12" 15.875" 1000 80,000 1

39018R2C5.5 18R 390 12" 15.875" 1500 80,000 2

45024R2C5.5 24R 450 12" 15.875" 1950 80,000 2

48026R2C5.5 26R 480 12" 15.875" 2100 80,000 2

55030R2C5.5 30R 550 12" 15.875" 2400 80,000 2

60032R2C5.5 32R 600 12" 15.875" 2600 80,000 2

65036R2C5.5 36R 650 12" 15.875" 2900 80,000 2

55030R3C5.5 30R 550 12" 15.875" 2400 80,000 3

60032R3C5.5 32R 600 12" 15.875" 2600 80,000 3

65036R3C5.5 36R 650 12" 15.875" 2900 80,000 3

RATED

ORDERING/

CATALOG

NUMBER

SIZE

MAXIMUM

CONTINUOUS

CURRENT @

40 DEGREES C°

DIM. A

(INCHES)

DIM. B

(INCHES)

MINIMUM

INTERRUPTING

RATING RMS

AMPS

MAXIMUM

INTERRUPTING

RATING RMS

(ASYM)*

FIGURE

NUMBER

8.25 KV

702R1C8.25 2R 70 12" 15.875" 190 80,000 1

1003R1C8.25 3R 100 12" 15.875" 225 80,000 1

1304R1C8.25 4R 130 12" 15.875" 330 80,000 1

1505R1C8.25 5R 150 12" 15.875" 440 80,000 1

1706R1C8.25 6R 170 12" 15.875" 500 80,000 1

2009R1C8.25 9R 200 12" 15.875" 740 80,000 1

23012R1C8.25 12R 230 12" 15.875" 955 80,000 1

39018R2C8.25 18R 390 12" 15.875" 1440 80,000 2

45024R2C8.25 24R 450 12" 15.875" 1910 80,000 2

RATED

ORDERING/

CATALOG

NUMBER

SIZE

MAXIMUM

CONTINUOUS

CURRENT @

40 DEGREES C°

DIM. A

(INCHES)

DIM. B

(INCHES)

MINIMUM

INTERRUPTING

RATING RMS

AMPS

MAXIMUM

INTERRUPTING

RATING RMS

(ASYM)*

FIGURE

NUMBER

5.5 KV

14”CLIP CENTERS

702R1C5.5X 2R 70 14" 17.875" 170 80,000 1

1003R1C5.5X 3R 100 14" 17.875" 250 80,000 1

1304R1C5.5X 4R 130 14" 17.875" 340 80,000 1

1505R1C5.5X 5R 150 14" 17.875" 390 80,000 1

1706R1C5.5X 6R 170 14" 17.8 75" 500 80,000 1

2009R1C5.5X 9R 200 14" 17.8 75" 760 80,000 1

23012R1C5.5X 12R 230 14" 17.875" 1000 80,000 1

39018R2C5.5X 18R 390 14" 17.8 75" 1500 80,000 2

45024R2C5.5X 24R 450 14" 17.875" 1950 80,000 2

55030R2C5.5X 30R 550 14” 17.875” 2400 80,000 2

RATED

ORDERING/

CATALOG

NUMBER

SIZE

MAXIMUM

CONTINUOUS

CURRENT @

40 DEGREES C°

DIM. A

(INCHES)

DIM. B

(INCHES)

MINIMUM

INTERRUPTING

RATING RMS

AMPS

MAXIMUM

INTERRUPTING

RATING RMS

(ASYM)*

FIGURE

NUMBER

2.75 KV

702R1C2.75 2R 70 7" 10.875" 170 80,000 1

1003R1C2.75 3R 100 7" 10.875" 250 80,000 1

1304R1C2.75 4R 130 7" 10.875" 340 80,000 1

1505R1C2.75 5R 150 7" 10.875" 390 80,000 1

1706R1C2.75 6R 170 7" 10.875" 500 80,000 1

2009R1C2.75 9R 200 7" 10.875" 760 80,000 1

23012R1C2.75 12R 230 7" 10.875" 1000 80,000 1

39018R2C2.75 18R 390 7" 10.875" 1500 80,000 2

45024R2C2.75 24R 450 7" 10.875" 1950 80,000 2

* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6

For hookeye attachment add “W” suffix to part number

Fuses – Medium Voltage

Medium Voltage Fuses

E-RATED MEDIUM VOLTAGE FUSES

Description

E-rated fuses have time current characteristics designed to

provide current-limiting protection for power transformers,

potential transformers, power centers, feeder centers, and

unit sub stations. When properly applied, they can protect

against high and low fault currents.

NEMA Standards for E-rated medium voltage fuses require

that fuses rated 100E or less open within 300 seconds

(5 minutes) when subjected to an RMS value of 200-240%

of the fuse continuous current rating; and fuses with an

E rating larger than 100E must open within 600 seconds

(10 minutes) when subjected to an RMS current of 220-

240% of the fuse’s continuous current rating. These values

establish one point on the time-current curve.

Application Note

Since these fuses are used for the protection of general

purpose circuits which may contain transformers, motors,

and other equipment producing in-rush and/or overload

currents, fuses should generally be rated at 140% of the

normal full load current, and circuits should be analyzed

to ensure that system load currents will not exceed the

current rating of the fuse.

3"DIA

Dim.A

Clip

Center

6.38"

Dim.B

9.75"

D DD DDD

Figure 4 Figure 5 Figure 6

Characteristics

Voltage Ratings 2,750 V – 38,000 V

Current Range 10E – 600E

Options

• Hermetically sealed for use in hazardous locations

(add “S” sufﬁx to part number)

• Clip-lock (CL) available.

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)*

FIGURE

NUMBER

2.75 MAX. KV

10E1C2.75 10E 7" 10.875" 80,000 4

15E1C2.75 15E 7" 10.875" 80,000 4

20E1C2.75 20E 7" 10.875" 80,000 4

25E1C2.75 25E 7" 10.875" 80,000 4

30E1C2.75 30E 7" 10.875" 80,000 4

40E1C2.75 40E 7" 10.875" 80,000 4

50E1C2.75 50E 7" 10.875" 80,000 4

65E1C2.75 65E 7" 10.875" 80,000 4

80E1C2.75 80E 7" 10.875" 80,000 4

100E-1C2.75 100E 7" 10.875" 80,000 4

125E1C2.75 125E 7" 10.875" 80,000 4

150E1C2.75 150E 7" 10.875" 80,000 4

200E1C2.75 200E 7" 10.875" 80,000 4

125E2C2.75 125E 7" 10.875" 80,000 5

150E2C2.75 150E 7" 10.875" 80,000 5

200E2C2.75 200E 7" 10.875" 80,000 5

250E2C2.75 250E 7" 10.875" 80,000 5

300E2C2.75 300E 7" 10.875" 80,000 5

350E2C2.75 350E 7" 10.875" 80,000 5

400E2C2.75 400E 7" 10.875" 80,000 5

450E2C2.75 450E 7" 10.875" 80,000 5

Dimensions

* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6

Fuses – Medium Voltage

Medium Voltage Fuses

E-RATED MEDIUM VOLTAGE FUSES

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE NUMBER

5.5 MAX. KV

10E1C5.5 10E 12" 15.875" 80,000 4

15E1C5.5 15E 12" 15.875" 80,000 4

20E1C5.5 20E 12" 15.875" 80,000 4

25E1C5.5 25E 12" 15.875" 80,000 4

30E1C5.5 30E 12" 15.875" 80,000 4

40E1C5.5 40E 12" 15.875" 80,000 4

50E1C5.5 50E 12" 15.875" 80,000 4

65E1C5.5 65E 12" 15.875" 80,000 4

80E1C5.5 80E 12" 15.875" 80,000 4

100E1C5.5 100E 12" 15.875" 80,000 4

125E1C5.5 125E 12" 15.875" 80,000 4

150E1C5.5 150E 12" 15.875" 80,000 4

175E1C5.5 175E 12" 15.875" 80,000 4

200E1C5.5 200E 12" 15.875" 80,000 4

125E2C5.5 125E 12" 15.875" 80,000 5

150E2C5.5 150E 12" 15.875" 80,000 5

175E2C5.5 175E 12" 15.875" 80,000 5

200E2C5.5 200E 12" 15.875" 80,000 5

250E2C5.5 250E 12" 15.875" 80,000 5

300E2C5.5 300E 12" 15.875" 80,000 5

350E2C5.5 350E 12" 15.875" 80,000 5

400E2C5.5 400E 12" 15.875" 80,000 5

450E2C5.5 450E 12" 15.875" 80,000 5

500E3C5.5 500E 12" 15.875" 80,000 6

550E3C5.5 550E 12" 15.875" 80,000 6

600E3C5.5 600E 12" 15.875" 80,000 6

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE NUMBER

5.5 MAX. KV

5NLE10E 10E 14” 17 7⁄8"80,000 4

5NLE15E 15E 14” 17 7⁄8"80,000 4

5NLE20E 20E 14” 17 7⁄8"80,000 4

5NLE25E 25E 14” 17 7⁄8"80,000 4

5NLE30E 30E 14” 17 7⁄8"80,000 4

5NLE40E 40E 14” 17 7⁄8"80,000 4

5NLE50E 50E 14” 17 7⁄8"80,000 4

5NLE65E 65E 14” 17 7⁄8"80,000 4

5NLE80E 80E 14” 17 7⁄8"80,000 4

5NLE100E 100E 14” 17 7⁄8"80,000 4

5NLE125E 125E 14“ 17 7⁄8"80,000 4

5NLE150E 150E 14” 17 7⁄8"80,000 4

5NLE175E 175E 14” 17 7⁄8"80,000 4

5NLE200E 200E 14” 17 7⁄8"80,000 4

5NLE2225E 225E 14” 17 7⁄8"80,000 5

5NLE2250E 250E 14” 17 7⁄8"80,000 5

5NLE2300E 300E 14” 17 7⁄8"80,000 5

5NLE2350E 350E 14” 17 7⁄8"80,000 5

5NLE2400E 400E 14” 17 7⁄8"80,000 5

5NLE2450E 450E 14” 17 7⁄8"80,000 5

* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6

Fuses – Medium Voltage

Medium Voltage Fuses

E-RATED MEDIUM VOLTAGE FUSES

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE NUMBER

15.5 MAX. KV

10E1C15.5 10E 15" 18.875" 80,000 4

15E1C15.5 15E 15" 18.875" 80,000 4

20E1C15.5 20E 15" 18.875" 80,000 4

25E1C15.5 25E 15" 18.875" 80,000 4

30E1C15.5 30E 15" 18.875" 80,000 4

40E1C15.5 40E 15" 18.875" 80,000 4

50E1C15.5 50E 15" 18.875" 80,000 4

65E1C15.5 65E 15" 18.875" 80,000 4

80E1C15.5 80E 15" 18.875" 80,000 4

100E1C15.5 100E 15" 18.875" 80,000 4

65E2C15.5 65E 15" 18.875" 80,000 5

80E2C15.5 80E 15" 18.875" 80,000 5

100E2C15.5 100E 15" 18.875" 80,000 5

125E2C15.5 125E 15" 18.875" 80,000 5

150E2C15.5 150E 15" 18.875" 80,000 5

175E2C15.5 175E 15" 18.875" 80,000 5

200E2C15.5 200E 15" 18.875" 80,000 5

200E3C15.5 200E 15" 18.875" 80,000 6

250E3C15.5 250E 15" 18.875" 80,000 6

300E3C15.5 300E 15" 18.875" 80,000 6

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE NUMBER

8.25 MAX. KV

10E1C8.25 10E 12" 15 7⁄8"80,000, 4

15E1C8.25 15E 12" 15 7⁄8"80,000 4

20E1C8.25 20E 12" 15 7⁄8"80,000 4

25E1C8.25 25E 12" 15 7⁄8"80,000 4

30E1C8.25 30E 12" 15 7⁄8"80,000 4

40E1C8.25 40E 12" 15 7⁄8"80,000 4

50E1C8.25 50E 12" 15 7⁄8"80,000 4

65E1C8.25 65E 12" 15 7⁄8"80,000 4

80E1C8.25 80E 12" 15 7⁄8"80,000 4

100E1C8.25 100E 12" 15 7⁄8"80,000 4

125E1C8.25 125E 12" 15 7⁄8"80,000 4

150E1C8.25 150E 12" 15 7⁄8"80,000 4

125E2C8.25 125E 12" 15 7⁄8"80,000 5

150E2C8.25 150E 12" 15 7⁄8"80,000 5

200E2C8.25 200E 12" 15 7⁄8"80,000 5

250E2C8.25 250E 12" 15 7⁄8"80,000 5

300E2C8.25 300E 12" 15 7⁄8"80,000 5

350E3C8.25 350E 12" 15 7⁄8"80,000 6

400E3C8.25 400E 12" 15 7⁄8"80,000 6

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE NUMBER

8.25 MAX. KV

8NLE10E 10E 14" 17 7⁄8"80,000 4

8NLE15E 15E 14" 17 7⁄8"80,000 4

8NLE20E 20E 14" 17 7⁄8"80,000 4

8NLE25E 25E 14" 17 7⁄8"80,000 4

8NLE30E 30E 14" 17 7⁄8"80,000 4

8NLE40E 40E 14" 17 7⁄8"80,000 4

8NLE50E 50E 14" 17 7⁄8"80,000 4

8NLE65E 65E 14" 17 7⁄8"80,000 4

8NLE80E 80E 14" 17 7⁄8"80,000 4

8NLE100E 100E 14" 17 7⁄8"80,000 4

8NLE2100E 100E 14" 17 7⁄8"80,000 5

8NLE2125E 125E 14" 17 7⁄8"80,000 5

8NLE2150E 150E 14" 17 7⁄8"80,000 5

8NLE2200E 200E 14" 17 7⁄8"80,000 5

8NLE2250E 250E 14" 17 7⁄8"80,000 5

* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6

Fuses – Medium Voltage

Medium Voltage Fuses

* RMS Asymmetrical amperes = RMS Symmetrical amperes x 1.6

E-RATED MEDIUM VOLTAGE FUSES

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE

NUMBER

15.5 MAX. KV

15GSE65E 65E 18" 217⁄8"60,000 4

15GSE80E 80E 18" 217⁄8"60,000 4

15GSE100E 100E 18" 217⁄8"60,000 4

15GSE2125E 125E 18" 217⁄8"60,000 5

15GSE2150E 150E 18" 217⁄8"60,000 5

15GSE2175E 175E 18" 217⁄8"60,000 5

15GSE2200E 200E 18" 217⁄8"60,000 5

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE

NUMBER

38 MAX. KV

3E1C38.0 3E 27" 307⁄8"20,000 4

7E1C38.0 7E 27" 307⁄8”20,000 4

10E1C38.0 10E 27" 307⁄8”20,000 4

15E1C38.0 15E 27" 307⁄8”20,000 4

20E1C38.0 20E 27" 307⁄8”20,000 4

25E1C38.0 25E 27" 307⁄8”20,000 4

30E1C38.0 30E 27" 307⁄8”20,000 4

40E1C38.0 40E 27" 307⁄8”20,000 4

50E2C38.0 50E 27" 307⁄8”20,000 5

65E2C38.0 65E 27" 307⁄8”20,000 5

80E2C38.0 80E 27" 307⁄8”20,000 5

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE

NUMBER

25.8 MAX. KV

15E1C25.8 15E 21" 247⁄8"40,000 4

20E1C25.8 20E 21" 247⁄8”40,000 4

25E1C25.8 25E 21" 24 7⁄8”40,000 4

30E1C25.8 30E 21" 247⁄8”40,000 4

40E1C25.8 40E 21" 247⁄8”40,000 4

50E1C25.8 50E 21" 247⁄8”40,000 4

65E2C25.8 65E 21" 24 7⁄8”40,000 5

80E2C25.8 80E 21" 247⁄8”40,000 5

100E2C25.8 100E 21" 247⁄8”40,000 5

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)* FIGURE

NUMBER

15.5 MAX. KV

15NLE10E 10E 20" 237⁄8"60,000 4

15NLE15E 15E 20" 237⁄8"60,000 4

15NLE20E 20E 20" 237⁄8"60,000 4

15NLE25E 25E 20" 237⁄8"60,000 4

15NLE30E 30E 20" 237⁄8"60,000 4

15NLE40E 40E 20" 237⁄8"60,000 4

15NLE50E 50E 20" 237⁄8"60,000 4

15NLE65E 65E 20" 237⁄8"60,000 4

15NLE80E 80E 20" 237⁄8"60,000 4

15NLE100E 100E 20" 237⁄8"60,000 4

15NLE280E 80E 20" 237⁄8"60,000 5

15NLE2100E 100E 20" 237⁄8"60,000 5

15NLE2125E 125E 20" 237⁄8"60,000 5

15NLE2150E 150E 20" 237⁄8"60,000 5

15NLE2175E 175E 20" 237⁄8"60,000 5

15NLE2200E 200E 20" 237⁄8"60,000 5

15NLE3150E 150E 20" 237⁄8"60,000 6

15NLE3175E 175E 20" 237⁄8"60,000 6

15NLE3250E 250E 20" 237⁄8"60,000 6

15NLE3300E 300E 20" 237⁄8"60,000 6

Fuses – Medium Voltage

Medium Voltage Fuses

E-RATED MEDIUM VOLTAGE FUSES

E-RATED ORDERING/CATALOG

NUMBER SIZE DIM. A (INCHES) DIM. B (INCHES) MAX INTERRUPTING

RATING RMS (ASYM)*

FIGURE

NUMBER

5.5 MAX. KV

CLIP LOCK

10E1CL5.5 10E 16.38" 15.13" 80,000 7

15E1CL5.5 15E 16.38" 15.13" 80,000 7

20E1C5.5 20E 16.38" 15.13" 80,000 7

25E1CL5.5 25E 16.38" 15.13" 80,000 7

30E1CL5.5 30E 16.38" 15.13" 80,000 7

40E1CL5.5 40E 16.38" 15.13" 80,000 7

50E1CL5.5 50E 16.38" 15.13" 80,000 7

65E1CL5.5 65E 16.38" 15.13" 80,000 7

80E1CL5.5 80E 16.38" 15.13" 80,000 7

100E1CL5.5 100E 16.38" 15.13" 80,000 7

125E1CL5.5 125E 16.38" 15.13" 80,000 7

150E1CL5.5 150E 16.38" 15.13" 80,000 7

225E2CL5.5 225E 17.38" 16.13" 80,000 8

250E2CL5.5 250E 17.38" 16.13" 80,000 8

300E2CL5.5 300E 17.38" 16.13" 80,000 8

350E2CL5.5 350E 17.38" 16.13" 80,000 8

400E2CL5.5 400E 17.3 8" 16.13" 80,000 8

450E2CL5.5 450E 17.38" 16.13" 80,000 8

500E3CL5.5 500E 17.38" 16.13" 80,000 9

550E3CL5.5 550E 17.38" 16.13" 80,000 9

600E3CL5.5 600E 17.38" 16.13" 80,000 9

4.31 7.94 11.56

1.25

.25

3.0

Clip Lock Design

The clip lock type designs ensures a positive contact between

the fuse and the connection cam. The fuse’s clip lock tab slides

in between the clip casting and the cam to prevent the fuse

from slipping or blowing out of the holder. This positive contact

improves heat dissipation and allows fuses to run cooler.

Figur