JJS-50

Effective July 2023 Supersedes December 2017 

Technical Data1029 

## JJS Limitron™ 600Vac, 1-800A, fast-acting Class T fuses 

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2011/65/EU<br>**----- End of picture text -----**<br>


||||**Catalog numbers (amps)**|**Catalog numbers (amps)**|**Catalog numbers (amps)**||
|---|---|---|---|---|---|---|
||||JJS-1<br>JJS-30||JJS-90|JJS-250|
||||JJS-2<br>JJS-35||JJS-100|JJS-300|
||||JJS-3<br>JJS-40||JJS-110|JJS-350|
|,|||JJS-6<br>JJS-45<br>JJS-125<br>JJS-400<br>JJS-10<br>JJS-50<br>JJS-150<br>JJS-450<br> ~~a~~||||
||||JJS-15<br>JJS-60||JJS-175|JJS-500|
|wei <br>: iocncesiedincenen<br>:|||JJS-20<br>JJS-70<br>JJS-200<br>JJS-600<br>JJS-25<br>JJS-80<br>JJS-225<br>JJS-800<br> ~~I~~<br>—<br>I||||
|LIMITRON|LIMITRON =||**Carton quantity**||||
|pa<br>ts<br>4<br>3<br>s|||**Amp rating**<br>**Cartonqty.**<br>Upto 60<br>10<br>~~eee~~||||
||||70–100||5||
||||110–800||1||



## **Features:** 

- Provides 10X better current limitation to help prevent equipment damage caused by shortcircuit events. 

## **Catalog Symbol:** 

- JJS-(amp) 

## **Description:** 

Eaton’s Bussmann™ series Limitron™ advanced protection Class T current-limiting, fast-acting fuses. 

## **Specifications:** 

## **Ratings** 

- Volts — 600 Vac 

- Amps — 1-800 A 

- IR — 200 kA Vac RMS Sym. 

## **Agency Information** 

- cULus Listed file No. JDDZ.E4273 

- UL 248-15 – Class T Fuses 

- CSA C22.2 No. 248.15 – Class T Fuses 

- CE 

- 200 kA Interrupting rating complies with NEC[®] Section 110.9 for today’s large capacity systems. 

- Fast-acting fuse helps prevent equipment damage caused by short-circuit events. 

- Small, space-saving fuses provide a high degree of current limitation on short-circuits for excellent component protection. 

- Ideal for critical industrial or commercial applications that have specific current limitation requirements. 

## **Recommended fuse blocks*** 

|**Amp rating**|**1-pole**|**2-pole**|**3-pole**|
|---|---|---|---|
|upto 30|T60030-1_|T60030-2_|T60030-3_|
|35-60<br>70-100<br>110-200|T60060-1_<br>T60100-1_<br>T60200-1_|T60060-2_<br>T60100-2_<br>—|T60060-3_<br>T60100-3_<br>1B0089|
|225-400|T60400-1_|—|—|
|450-600|T60600-1_|—|—|



   - For additional information, see data sheet no. 1116. 

- RoHS compliant 

JJS — 600Vac, 1-800A, fast-acting Class T fuses 

Technical Data Effective July 2023 

## **Dimensions – in** 

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1.5 3.63<br>2.72<br>Dia. 0.56<br>1.73<br> 1 to 30 A<br>1<br>1.56<br>225 to 400 A Ø 0.406<br>Dia. 0.81 1.00<br>3.98<br> 35 to 60 A 2.95<br>1.78<br>2.95<br>2.36 1.25<br>1.64<br>450 to 600 A Ø 0.484<br>0.75<br>70 to 100 A 4.33<br>Ø 0.281 3.17<br>1.88<br>3.25<br>2.5<br>1.66<br>0.88 1.75<br>110 to 200 A<br>Ø 0.563<br>Ø 0.344 601 to 800 A<br>**----- End of picture text -----**<br>


## **Custom designs** 

Printed circuit board versions available up to 60 amps. Consult your Bussmann series product representative for details. 

UL Component Recognized, Guide JFHR2, File E56412. 

## **Dimensions — in** 

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1.885<br>0.200 min.<br>0.750<br>0.795<br>0.324<br>0.500<br>1.562"<br>0.150"<br>0.806"<br>1.432"<br>0.806"<br>**----- End of picture text -----**<br>


2 

Eaton.com/bussmannseries 

JJS — 600Vac, 1-800A, fast-acting Class T fuses 

Technical Data Effective July 2023 

## **Time-current curves - average melt** 

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AMP RATING<br>300<br>100<br>10<br>1<br>0.1<br>0.01<br>CURRENT IN AMPS<br>1A 3A 6A 10A 15A 30A 60A 100A 200A 400A 500A 600A<br>TIME IN SECONDS<br>1 10 100 1000 10,000<br>**----- End of picture text -----**<br>


3 

Eaton.com/bussmannseries 

JJS — 600Vac, 1-800A, fast-acting Class T fuses 

Technical Data 1029 Effective July 2023 

## **Current-limitation curves** 

## **Current-limiting effects** 

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B Prosp.<br>400,000 S.C.C. Let-through current (apparent RMS Sym. vs. fuse rating)<br>300,000 —T oT eTetlEEeeeeee — 15A 30A 60A 100A 200A 400A 600A 800A<br>500 1000 1000 1000 1000 1000 1000 1000 1000<br>200,000 oem a | OO<br>1000 1000 1000 1000 1000 1000 1000 1000 1000<br>5000 1000 1000 1000 2000 3000 4000 5000 5000<br>100,000 — ——————<br>80,00060,000 ———rt tt A 800600 ee———————SS 1510,,000000 10001000 10001000 20001000 20003000 30004000 60007000 108000,000 119000,000<br>20,000 1000 1000 2000 3000 4000 7000 10,000 12,000<br>40,000 a eee 400<br>30,000 25,000 1000 1000 2000 3000 5000 7000 11,000 13,000<br>Hf te eeAerts ae ee 200 30,000 1000 1000 2000 3000 5000 8000 12,000 14,000<br>20,000 a aehte 100 3540,,000000 10001000 20001000 20002000 30004000 50005000 90009000 1313,,000000 1515,,000000<br>10,00080006000 rrINNPEeee|ee eee= ee ee ee ct ea 6030 OO 5060,,000000 10001000 20002000 20003000 40004000 60006000 1000010000 1416,,000000 1817,,000000<br>a eee eee | 15 OO 70,000 1000 2000 3000 4000 7000 11000 17,000 19,000<br>40003000 PTT er ee er —_ 80,000 1000 2000 3000 4000 7000 11000 17,000 20,000<br>Hf ee ee 90,000 1000 2000 3000 4000 7000 12000 18,000 21,000<br>2000 100,000 2000 2000 3000 5000 7000 12,000 19,000 22,000<br>SERA (osama Sn 150,000 2000 3000 4000 6000 8000 14,000 22,000 25,000<br>1000 200,000 2000 3000 4000 6000 9000 16,000 24,000 28,000<br>800 SS At | f|<§<br>600 PE 7, os a A OD TT<br>| Arfeet et et<br>400 | er<br>300 | Z|eri TIiii oTTt TittyET T Ty<br>200A Ze<br>RMS SYMMETRICAL CURRENT IN AMPS<br>A-B = ASYMMETRICAL AVAILABLE PEAK (2.3 X SYM RMS AMPS)<br>INSTANTANEOUS PEAK-LET-THROUGH CURRENT IN AMPS AMP RATING<br>100 200 300 400 600 800 1000 2000 3000 4000 6000 8000 10,000 20,000 30,000 40,000 60,000 80,000 100,000 200,000<br>**----- End of picture text -----**<br>


The only controlled copy of this data sheet is the electronic read-only version located on the Eaton network drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information  contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. 

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Bussmann Division 114 Old State Road Ellisville, MO 63021 United States Eaton.com/bussmannseries 

© 2023 Eaton All Rights Reserved Printed in USA Publication No. 1029 — BU-SB13737 July 2023 

Eaton, Bussmann and Limitron are valuable trademarks of Eaton in the U.S. and other countries. You are not permitted to use the Eaton trademarks without prior written consent of Eaton. 

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