fuses

For product Data Sheets, visit www.cooperbussmann.com/products/datasheet.asp 1

Table of contents

Disconnects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303Safety Module™ fused disconnect switch . . . . . . . . . . . . . . . . . . . . . . . 304Coordination Module™ fused panelboard . . . . . . . . . . . . . . . . . . . . . . . 305Power Module™ elevator disconnects . . . . . . . . . . . . . . . . . . . . . . . . . 306Overview for fusible disconnects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30730A Base & rail mount fusible disconnects . . . . . . . . . . . . . . . . . . 308-30960-100A Base & rail mount fusible disconnects . . . . . . . . . . . . . . 310-311200-800A Base & rail mount fusible disconnects . . . . . . . . . . . . . 312-31330-800A 2-, 3-, 4- & 6-Pole enclosed fusible disconnects . . . . . . . 314-317Overview for non-fusible disconnects . . . . . . . . . . . . . . . . . . . . . . 318-31916-100A Base & rail mount non-fusible disconnects . . . . . . . . . . . 320-32116-100A door mounted non-fusible disconnects . . . . . . . . . . . . . . . . . . 322400-800A Non-fusible disconnects & accessories . . . . . . . . . . . . . 323-32416-80A 3-Pole enclosed non-fusible disconnects . . . . . . . . . . . . . . . . . 32516-3150A 3-Pole enclosed non-fusible disconnects . . . . . . . . . . . . . . . 32616-400A 2-, 4- & 6-Pole enclosed non-fusible disconnects . . . . . . 327-328A/C disconnects - fused and non-fused . . . . . . . . . . . . . . . . . . . . . . . . 329Fused, dead front disconnect switches . . . . . . . . . . . . . . . . . . . . . . . . . 330

Telecom Protection Devices . . . . . . . . . . . . . . . . . . 331Telpower TPC & TPCDS compact fused disconnect switches . . . . . . . . 332Telpower TPM & TPMDS miniature fused disconnect switches . . . . . . . 333Fused disconnect switches for TPA fuses . . . . . . . . . . . . . . . . . . . 334-335Fused disconnect switches for TPS fuses . . . . . . . . . . . . . . . . . . . . . . 336Fused disconnect switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337-338Telpower high-current switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339Telpower 70-600A: 170Vdc fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340Telpower 1-600A: 170Vdc fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341Indicating fuses & holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342-343Telpower specialty fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344-345F38, FE2475 & F7036 Series filtered terminal blocks . . . . . . . . . . . 346-348Series C7021 & C7024 power feed thru terminal blocks . . . . . . . . 349-350

Surge Suppression Devices . . . . . . . . . . . . . . . . . . . . 351TVS transient voltage surge suppressors . . . . . . . . . . . . . . . . . . . . . . . 352TVSS transient surge suppression limiters . . . . . . . . . . . . . . . . . . . . . 353

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .255Fuse service kits & assortments . . . . . . . . . . . . . . . . . . . . . . . . . . 255-257Clip clamps & rail adapters (DIN & American) . . . . . . . . . . . . . . . . . . 258Spare fuse holders, pullers, testers & cabinets . . . . . . . . . . . . . . . . . . 259Fuse reducers & dummy "neutrals" . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Application Guide . . . . . . . . . . . . . . . . . . . . . . . . . . 361Cooper Bussmann Electrical Safety Services . . . . . . . . . . . . . . . . . . . . . 262Fuse technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363-369Motor circuit branch circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . 370Conductor & termination considerations . . . . . . . . . . . . . . . . . . . . 371-373Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374-376Out-of-stock substitution/upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376Cooper Bussmann electrical trademarks . . . . . . . . . . . . . . . . . . . . . . . . 376Industrial & commercial fuse applications . . . . . . . . . . . . . . . . . . .377-378

Catalog Number Index . . . . . . . . . . . . . . . . . . . . 379-383

Sales support & manufacturing facilities . . . . . . . . . . . 384

Cross reference and Low-Peak® Fuse Stock ConsolidationInside back cover

Low Voltage

BranchCircuit

Low Voltage

Supplementary

Fuses

ElectronicFuses

Medium

VoltageFuses

High SpeedFuses

IEC&

BritishFuses

FuseHolders

& Blocks

Power

DistributionBlocks

Wire

ConnectionProducts

DisconnectsTelcom

ProtectionDevices

SurgeSuppression

DevicesAccessories

ApplicationGuide

Index

Catalog Sections Page

Low Voltage, Branch Circuit Rated Fuses . . . . . 7

Low Voltage Supplementary Fuses . . . . . . . . . . 39

Electronic - PC Board and Small . . . . . . . . . . . 53

Medium Voltage Fuses and Fuse Links . . . . . . . 67

High Speed Fuses . . . . . . . . . . . . . . . . . . . . . 87

IEC & British Standard Fuses . . . . . . . . . . . . . 213

Fuse Holders and Blocks . . . . . . . . . . . . . . . . 231

Power Distribution Blocks . . . . . . . . . . . . . . . 275

Wire Connection Products . . . . . . . . . . . . . . . 281

Disconnects . . . . . . . . . . . . . . . . . . . . . . . . 303

Telecom Protection Devices . . . . . . . . . . . . . 331

Surge Suppression Devices . . . . . . . . . . . . . . 351

Accessories . . . . . . . . . . . . . . . . . . . . . . . . 255

Application Guide . . . . . . . . . . . . . . . . . . . . . 361

Index by Part Number . . . . . . . . . . . . . . . . . .379

RED indicates NEW information

Electronic - PC Board andSmall Dimension Fuses . . . . . . . . . . . . . . . . .

For product Data Sheets, visit www.cooperbussmann.com/products/datasheet.asp2

Selecting circuit protection

Low Voltage, Branch Circuit Rated Fuses

The following fuse selection guides are based on the 2005NEC® and provided fuse recommendations for the variousapplications listed.

These are only suggestions. Final fuse selection should beperformed only by a qualified personnel able to fully assesan application’s circuit protection requirements. If you needassistance in selecting a fuse for a particular application, callthe Cooper Bussmann Application Engineering team. This

team is staffed by degreed electrical engineers and availableby phone for technical and application support Monday –Friday, 8:00 a.m. – 5:00 p.m. Central Time.

Application Engineering can be reached via phone, fax or e-mail:

• Phone: 636-527-1270• Fax: 636-527-1607• E-mail: [email protected]

Fuse & Holder RecommendationsFuse Holder(s) Fuse Holder(s)BAF HEB KTK-R HEYBAN HEX FNQ-RKTK HPC-D LP-CCFNMFNQFNW

Mercury, Sodium, etc.

Fluorescent

All Other (Mercury,Sodium, etc.)

Indoor

Outdoor

Consult fixture manufacturer for size and type.



Fuse & Holder RecommendationsFuse Holder(s) Fuse Holder(s)GLR HLR GLQ HLQGMF GMQGRF

Ballasts

Fuse & Holder RecommendationsFuse Holder(s) Fuse Holder(s) Fuse Holder(s)BAF HPF KTK-R HPS-RR SC 0-15 HPF-EEBAN HPS FNQ-R HPF-RR HPS-EEKTK LP-CC SC 20 HPF-JJFNM HPS-JJFNQ KTQ HPS-L SC 25-30 HPF-FFFNW BBS HPF-L HPS-FF

Capacitors (NEC® 460)

Protected byTime-Delay Fuses.

150% to 175% of Full Load Current

On Load Side of Motor RunningOvercurrent Device.

Protection recommended as shown, but not required.

Protected byNon-Time-Delay Fuses.

250% to 300% of Full Load Current.

Fuse RecommendationsVolts Fuse(s)0-250 LPN-RK_SP, FRN-R0-600 LPS-RK_SP, FRS-R0-600 LPJ_SP, LP-CC,

FNQ-R, TCF

Fuse RecommendationsVolts Fuse(s)0-250 KTN-R, NON0-300 JJN0-600 KTS-R, NOS0-600 JKS, KTK-R0-600 JJS

For product Data Sheets, visit www.bussmann.com/products/datasheet.asp 3



Mains, Feeders, Branches

Feeder Circuits(600A & Less)

Fuse RecommendationsVolts Fuse(s)0-25O LPN-RK_SP, FRN-R0-600 LPS-RK_SP, FRS-R0-600 LPJ- SP, LP-CCMotor Loads

No Motor Load

Combination MotorLoads and Other Loads

100% of non-continuous load plus 125% of continuous load.

150%* of the FLA of largest motor (if there are two or moremotors of same size, one is considered to be the largest) plusthe sum of ail the FLA for all other motors plus 100% of non-continuous, non-motor load plus 125% of continuous, non-motor load.

150%* of the FLA of largest motor (if there are two or moremotors of same size, one is considered to be the largest) plusthe sum of ail the FLA for ail other motors.

*A max. of 175% (or the next standard size if 175% does notcorrespond to a standard size) is allowed for all but woundrotor and all dc motors.

Fuse RecommendationsVolts Fuse(s)0-250 LPN-RK_SP, FRN-R0-300 JJN0-600 LPS-RK_SP, FRS-R0-600 JJS0-600 LPJ_SP, LP-CC

JKS, KTK-R, LPT

Main, Branch &Feeder Circuits

(601-6000A)

150% to 225% of full load current of largest motor plus 100%of full load current of all other motors plus 125% of continuousnon-motor load plus 100% of non-continuous non-motor load.

Fuse RecommendationVolts Fuse(s)0-600 KRP-C_SP

Electric Heat (NEC® 424)

Electric Space Heating Size at 125% or next size larger but in no case larger than60 amps for each subdivided load.

Electric Boilers withResistance Type Immersion

Heating Elements in an ASMERated and Stamped Vessel

Size at 125% or next size larger but in no case larger than150 amps for each subdivided load.

Fuse RecommendationVolts Fuse(s)0-250 LPN-RK_SP

FRN-R, NON0-300 JJN0-480 SC 25 to SC 600-600 LPS-RK_SP

FRS-R, NOS0-600 JJS0-600 LPJ_SP, LP-CC

FNQ-R, JKS, KTK-R,TCF, SC 1⁄2 to SC 20




Above 600V

600V & Less

Fuse RecommendationsVolts Fuse(s)0-250 LPN-RK_SP, FRN-R0-600 LPS-RK_SP, FRS-R0-600 LPJ_SP, TCF

Fuse RecommendationsVolts Fuse(s)0-250 KTN-R, NON0-300 JJN0-600 KTS-R, NOS0-600 JJS0-600 LP-CC, JKS, KTK-R,

LPT

Short-Circuit Only

Backup Overload w/Motor Starter & Short-Circuit Protection

Short-Circuit Only

Protected by Time-Delay Fuses

Protected by Non-Time Delay Fuses &all Class CC Fuses

Compare the min. melting time-current characteristics of the fuses with the time-current characteristics of the overload relaycurve. The size fuse which is selected should be such that short.circuit protection is provided by the fuse and overload pro-tection is provided by the controller overload relays.

Fuse RecommendationsVolts Fuse(s)2400 JCK, JCK-A, JCH4800 JCL, JCL-A, JCG7200 JCR, 7.2 WKMSJ

Motor Loads (NEC® 430)

125% of motor FLA or next size larger.

130% of motor FLA or next size larger.

175%* of motor FLA or next size larger. (If 175% does not cor-respond to a standard size). If this will not allow motor to start,due to higher than normal inrush currents or longer than nor-mal acceleration times (5 sec. or greater), fuse may be sized upto 225% or next size smaller.

Max. of 300%* of motor FLA or next size larger (if 300% doesnot ocrrespond to a standard size). If this will not allow motorto start due to higher than normal inrush currents or longerthan normal acceleration times (5 sec. or greater), fusesthrough 600 amps may be sized up to 400% or next sizesmaller.

Fuse Sized For:

*150% for wound rotor and all DC motors.

Fuse RecommendationsVolts Fuse(s)0-250 FRN-R0-600 FRS-R

Fuse RecommendationsVolts Fuse(s)0-250 LPN-RK_SP0-600 LPS-RK_SP

Solenoids (Coils)Branch Circuit

FusesSize at 125% or next size smaller.

Fuse RecommendationVolts Fuse(s)0-250 Best: LPN-RK_SP

FRN-R0-600 LPS-RK_SP

FRS-R0-600 LPJ_SP, LP-CC

FNQ-R, TCF

SupplementaryFuses

Size at 125% or next size larger.Fuse RecommendationVolts Fuse(s)0-32 MDL 9-30A,

FNM 20-30A0-125 MDA 25-30A,

FNM 12-15A0-250 MDL 1⁄16-8A,

MDA 2⁄10-20A,FNM 1⁄10-10A,FNW 12-30A,MDQ 1⁄100-7A

0-500 FNQ 1⁄10-30A

For product Data Sheets, visit www.bussmann.com/products/datasheet.asp 5



PrimaryProtection

Only

*When 125% of FLA corresponds toa standard rating, the next larger sizeis not permitted.

Primary AndSecondaryProtection

Optimum Protection

125% or next size larger

125% or next size larger

125% or next size larger Max. of 125% or next larger*

NEC® MaximumsMax. 300% or next size smaller (SeeNEC® 430.72(C) for control circuittransformer maximum of 500%

Max. 167% or next size smaller

Maximum Fuse Size

% of Primary FLA(or next FLA size smaller)

A = 250%B = 250%C = 600%D = 600%E = 400%F = 400%

% of Secondary FLAA = 167% or next size smallerB = 125% or next size larger*C = 167% or next size smallerD = 125% or next size larger*E = 167% or next size smallerF = 125% or next size larger*

Rated secondary current 9amps or greater

Rated secondary currentless than 9 amps

TransformerImpedance of 6%or Less



TransformerImpedance ofMore Than 6%But Less Than10%



Without ThermalOverloadProtection

With ThermalOverloadProtection

Note: Components on the secondary stillneed overcurrent protection Rated primary current less

than 2 amps

Rated primary currentgreater than or equal to 9amps

Rated primary currentgreater than or equal to 2amps but less than 9 amps

Transformers 600V Nominal or Less (NEC® 450.3)

Fuse RecommendationsVolts Fuse(s)250V LPN-RK_SP, FRN-R600V KRP-C_SP, LPJ_SP, LPS-RK_SP, FNQ-R, FRS-R, TCF

A A

B

C

D

E

F

B

C

D

E

F

Primary and secondaryfuses at 125% of prima-ry and secondary FLA ornext size larger

Maximum Fuse Size




Solid State Devices (Diodes, SCRs, Triacs, Transistors)

Short-CircuitProtection

Only

“F,” “S,” “K,” & 170M Series fuses sized up to several sizeslarger than full load RMS or dc rating of device.

Fuse RecommendationsVolts Fuse(s)0-130 FWA0-250 FWX0-500 FWH0-600 FWC, KAC, KBC0-700 FWP, 170M Series,

SPP0-1000 FWJ, 170M Series,

SPJ

SupervisedInstallations

UnsupervisedInstallations

Transformers Over 600V Nominal (NEC® 450.3)

Fuse RecommendationsVolts Fuse(s)250V LPN-RK_SP, FRN-R600V LPS-RK_SP, LPJ-_SP,

KRP-C_SP, FRS-R, FNQ-R,TCF

2475V JCD2750V JCX2750/5500V JCW5500V JCE, JCQ, JCY, JCU,

5.5 ABWNA, 5.5 AMWNA,5.5 FFN

7200V 7.2 ABWNA, 7.2 SDLSJ, 7.2 SFLSJ

8300V JCZ, JDZ, 8.25 FFN15500V JCN, JDN, JDM, 15.5 CAVH17500V 17.5 CAV, 17.5 SDM24000V 24 SDM, 24 SFM, 24 FFM36000V 36 CAV, 36 SDQ, 36 SFQ38000V 38 CAV

Note: Components on the secondary still needovercurrent protectionPrimary at code max. of 250% or

next standard size if 250% does notcorrespond to a standard rating

PrimaryProtectionOnly

TransformerImpedance LessThan or Equal to 6%

Primaryat codemax. of300%

SecondaryOver 600V

Secondary atcode max. of250%



SecondaryOver 600V

Primaryat codemax. of300%


SecondaryOver 600V

Primary at code max. of300% or next standard sizeif 300% does not corre-spond to a standard rating

TransformerImpedance LessThan or Equal to 6%

Primary at code max. of300% or next standard sizeif 300% does not corre-spond to a standard rating

SecondaryOver 600V

Secondary at code max. of125% or next standard sizeif 125% does not corre-spond to a standard rating




TransformerImpedance GreaterThan 6% But LessThan 10%

Secondary600V orBelow


PrimaryandSecondaryProtection

TransformerImpedance GreaterThan 6% But LessThan 10%



fuses

Documents