MDL-V-1-R

**Bussmann[[®]]** nee **Time-Delay Glass Fuses MDL** 

**Bussmann[[®]] MDL MDL-V** 

## **For ⁄Ω¢∑ ≈ 1⁄Ω¢∑ (6.3mm ≈ 32mm)** 

Actual Size 

**Catalog Symbol:** MDL ⁄Ω¢∑ ≈ 1⁄Ω¢∑ (3AG) 

## **Time-Delay** 

**Agency Approvals*:** U.L./CSA 248-14 **Construction:** Glass Tube, Nickel Plated Brass Endcaps 

## **Time-Current Characteristics** 

**Rated Percent of Rating Current 110% 135% 200%** ⁄Ω¡§ -30 4 hrs. (min) 60 min. (max) 120 sec. (max) 

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⁄Ω¡§ –15 Amp:              (REF) .81mm<br>Dimensional Data .032 6.76mm<br>20–30 Amp:                (REF) 1.02mm .266<br>.040<br>6.35mm 6.35mm<br>(±0.003).25 31.75mm(±1.250.031) .25 38.10mm1.500 32.82mm (1.292  (± .031)± .79) 38.10mm1.500(REF)<br>(REF)<br>**----- End of picture text -----**<br>


## **Packaging & Ordering Information:** 

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MDL – V – (See Table)<br>Package Code Product Lead Rated Current<br>Blank  5 in Symbol Blank -no lead<br>BK/   100 in V-Axial lead<br>Weight = .93 lbs/100<br>**----- End of picture text -----**<br>


CE logo denotes compliance with European Union Low Voltage Directive (50-1000 Vac, 75-1500 Vdc). Refer to BIF document #8002 or contact 

Bussmann Application Engineering at 314-527-1270 for more information. 

|**Rated**<br>**Current5**|**Rated**<br>**Voltage **<br>~~fp~~<br>~~pf~~|**Rated**<br>**Voltage **<br>~~fp~~<br>~~pf~~|**Interrupting**<br>**Rating1**<br>~~fpff~~|**Interrupting**<br>**Rating1**<br>~~fpff~~|**Pre-arcing**<br>**I2t (A2Sec)**<br>~~ff~~|**Pre-arcing**<br>**I2t (A2Sec)**<br>~~ff~~|**Typical Total Clearing3**<br>**I2t (A2Sec)**<br>~~ff~~|**Typical Total Clearing3**<br>**I2t (A2Sec)**<br>~~ff~~|**Typical Voltage**<br>**Drop2 Volts at**<br>**100% Rated**<br>**Current**<br>~~ff~~|**Agency***<br>**Approvals**|
|---|---|---|---|---|---|---|---|---|---|---|
|||||||||||**U.L.**<br>**U.R.**<br>**CSA**|
||**AC(Max.)**<br>~~fp~~<br>~~pf~~|**DC6 (Max.)**<br>~~fp~~<br>~~pf~~|**AC**<br>~~fpff~~|**DC6**<br>~~ff~~|**AC**<br>~~ff~~|**DC6**<br>~~ff~~|**AC**<br>~~ff~~|**AC**<br>**DC6**<br>~~ff~~|||
|⁄Ω¡§<br>⁄Ω¡º<br>⁄Ω•|250V<br>250V<br>250V<br>~~fp~~<br>~~pf~~<br>~~|~~|250V<br>250V<br>250V<br>~~fp~~<br>~~pf~~<br>|<br>~~ft}~~|35A<br>35A<br>35A<br>~~fpff~~<br>|<br>~~ft}~~|35A<br>35A<br>35A<br>~~ff~~<br>|<br>~~ft}~~<br>||.21<br>.04<br>.05<br>~~ff~~<br>~~ff]~~<br>~~|~~|.02<br>.60<br>.06<br>~~ff~~<br>~~ff]~~<br>||~~ff~~<br>~~ff]~~|.51<br>3.59<br>.11<br>1.31<br>.06<br>.06<br>~~ff~~<br>~~ff]~~|5.56<br>2.02<br>1.68<br>~~ff~~|•<br>•<br>•<br>•<br>•<br>•|
|‹Ω¡§<br>¤Ω¡º<br>⁄Ω¢|250V<br>250V<br>250V<br><br>~~pf~~<br>~~|~~<br>~~|~~|250V<br>250V<br>250V<br><br>~~pf~~<br>~~ft}~~<br>~~ft}~~|35A<br>35A<br>35A<br>~~ff~~<br>~~ft}~~<br>~~ft}~~|35A<br>35A<br>~~ff~~<br>~~ft}~~<br>|<br>~~ft}~~<br>||.08<br>.08<br>.43<br>~~ff~~<br>~~|~~<br>~~|~~|.44<br>~~ff~~<br>|<br>||~~ff~~|.52<br>.68<br>.96<br>.45<br>~~ff~~|1.12<br>1.00<br>1.02<br>~~ff~~|•<br>•<br>•<br>•<br>•<br>•|
|‹Ω¡º<br>‹Ω•<br>⁄Ω™|250V<br>250V<br>250V<br>~~|~~<br>~~|~~<br>~~|~~|250V<br>250V<br>250V<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|35A<br>35A<br>35A<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|35A<br>35A<br>35A<br>~~ft}~~<br>|<br>~~ft}~~<br>|<br>~~ft}~~<br>||.41<br>.72<br>1.48<br>~~|~~<br>~~|~~<br>~~|~~|.43<br>.83<br>2.02<br>|<br>|<br>||1.13<br>1.86<br>2.52|1.13<br>.66<br>1.86<br>2.00<br>2.52<br>2.14|1.48<br>.85<br>1.26|•<br>•<br>•<br>•<br>•<br>•|
|‹Ω¢<br>1<br>1⁄Ω¢|250V<br>250V<br>250V<br>~~|~~<br>~~|~~<br>~~|~~|250V<br>250V<br>250V<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|35A<br>35A<br>100A<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|35A<br>35A<br>100A<br>~~ft}~~<br>|<br>~~ft}~~<br>|<br>~~ft}~~<br>||3.75<br>10.24<br>10.70<br>~~|~~<br>~~|~~<br>~~|~~|4.25<br>9.80<br>|<br>|<br>||5.11<br>12.65<br>21.40|5.11<br>4.62<br>12.65<br>10.25<br>21.40|1.01<br>.98<br>.77|•<br>•<br>•<br>•<br>•<br>•|
|1⁄Ω™<br>2<br>2⁄Ω¢|250V<br>250V<br>250V<br>~~|~~<br>~~|~~<br>~~|~~|250V<br>250V<br>250V<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|100A<br>100A<br>100A<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|100A<br>100A<br>100A<br>~~ft}~~<br>|<br>~~ft}~~<br>|<br>~~ft}~~<br>||19.10<br>68.60<br>55.40<br>~~|~~<br>~~|~~<br>~~|~~||<br>|<br>||30.90<br>79.70<br>78.20|30.90<br>79.70<br>78.20|.74<br>.59<br>.27|•<br>•<br>•<br>•<br>•<br>•|
|2⁄Ω™<br>3<br>4|250V<br>250V<br>250V<br>~~|~~<br>~~|~~<br>~~|~~|250V<br>250V<br>125V/32V<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|100A<br>100A<br>200A<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|100A<br>100A<br>10kA/1kA<br>~~ft}~~<br>|<br>~~ft}~~<br>|<br>~~ft}~~<br>||63.50<br>43.10<br>181.90<br>~~|~~<br>~~|~~<br>~~|~~|30.27<br>|<br>|<br>||77.10<br>68.60<br>203.50|77.10<br>68.60<br>76.09<br>203.50|.42<br>.35<br>.20|•<br>•<br>•<br>•<br>•|
|5<br>6<br>7|250V<br>250V<br>250V<br>~~|~~<br>~~|~~<br>~~|~~|125V/32V<br>125V/32V<br>125V/32V<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|200A<br>200A<br>200A<br>~~ft}~~<br>~~ft}~~<br>~~ft}~~|10kA/1kA<br>10kA/1kA<br>10kA/1kA<br>~~ft}~~<br>|<br>~~ft}~~<br>|<br>~~ft}~~<br>||311.30<br>368.30<br>457.50<br>~~|~~<br>~~|~~<br>~~|~~||<br>|<br>||374.00<br>427.50<br>507.60|374.00<br>427.50<br>507.60|.19<br>.17<br>.15|•<br>•<br>•<br>•<br>•<br>•|
|8<br>9<br>10|250V<br>32V<br>32V<br>~~|~~<br>~~|~~<br>~~|~~|250V/125V<br>125V/32V<br>125V/32V<br>~~ft}~~<br>~~ft}~~<br>~~|}~~|200A<br>1000A<br>1000A<br>~~ft}~~<br>~~ft}~~<br>~~|}~~|200A/10kA<br>10kA/1kA<br>10kA/1kA<br>~~ft}~~<br>|<br>~~ft}~~<br>|<br>~~|}~~<br>~~|~~|280.90<br>568.00<br>671.00<br>~~|~~<br>~~|~~<br>~~|~~|422.00<br>|<br>|<br>~~|~~|455.20<br>685.00<br>874.00<br>~~of~~|455.20<br>531.00<br>685.00<br>874.00<br>~~of|~~|.12<br>.14<br>.12<br>~~|~~|•<br>•<br>•<br>•|
|15<br>20<br>25<br>~~po~~|32V<br>32V<br>32V<br>~~|~~<br>~~|~~<br>~~po~~|32V<br>32V<br>32V<br>~~ft}~~<br>~~|}~~|1000A<br>1000A<br>1000A<br>~~ft}~~<br>~~|}~~|1000A<br>1000A<br>1000A<br>~~ft}~~<br>|<br>~~|}~~<br>~~|~~|1931.00<br>5652.00<br>15356.00<br>~~|~~<br>~~|~~||<br>~~|~~|2296.00<br>5992.00<br>15789.00<br>~~of~~|2296.00<br>5992.00<br>15789.00<br>~~of|~~|.14<br>.05<br>.07<br>~~|~~|•<br>•<br>•|
|30<br>~~po~~|32V<br>~~|~~<br>~~po~~|32V<br>~~|}~~|1000A<br>~~|}~~|1000A<br>~~|}~~<br>~~|~~|28033.00<br>~~|~~|~~|~~|28499.00<br>~~of~~|28499.00<br>~~of|~~|.07<br>~~|~~|•|



*Approvals: U.L. Listed, Std. 248-14, Guide JDYX, File E19180; CSA Certification Class 1422-01, File 53787; U.L. Recognized, Guide JDYX2, File E19180. 

1. Interrupting ratings were measured at 70% - 80% power factor on AC, and at a time constant described in U.L. 198L. 

2. Voltage drop was measured at 25 ° C±3 ° C ambient temperature at rated current. 

3. I[2] t was measured at listed interrupting rating and rated voltage. 

4. Interrupting rating for MDL ⁄Ω¡§-8A @ 125 Vac is 10,000A. Interrupting rating listed corresponds to maximum rated voltage. 

5. Other available sizes include ⁄Ω¡ºº, ⁄Ω£™, ⁄fiΩ¡ºº, ⁄‡fiΩ¡ºº, ›Ω¡º, flΩ¡º, ‡Ω¡º, °Ω¡º, 1¤Ω¡º, 1flΩ¡º, 1°Ω¡º, 2°Ω¡º, 3¤Ω¡º, 3⁄Ω™, 6⁄Ω¢, 7⁄Ω™, 12 and 17⁄Ω™. 

6. 1-10A, U.L. Recognized, 125 Vdc and 500 AIC. Other DC ratings are self-certified. 

Form No. MDL Page 1 of 2 BIF Doc #2004 

12-21-98 SB98107 Rev. A 

**Bussmann[®]** 

**Time-Delay Glass Fuses For ⁄Ω¢∑ ≈ 1⁄Ω¢∑ (6.3mm ≈ 32mm)** 

**MDL MDL-V** 

## **1.0 Typical Voltage Drop (At 25° C Ambient Temperature)** 

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2.0<br>MDL ⁄Ω¡º�<br>MDL ⁄Ω•�<br>1.5<br>MDL ¤¡º�<br>1.0 MDL ⁄Ω¢�<br>MDL ‹Ω¡º�<br>0.5<br>0<br>5% 25% 50% 75% 100%<br>PERCENT OF RATED CURRENT<br>.6<br>MDL 2<br>.5<br>.4<br>.3 MDL 3<br>.2 MDL 5<br>MDL 6<br>MDL 9<br>.1 MDL 8<br>0<br>5% 25% 50% 75% 100%<br>PERCENT OF RATED CURRENT<br>2.0 Ambient Temperature Effect Chart  (Derating Curve)<br>140<br>120<br>100<br>80<br>60<br>-60 -40 -20 0 20 40 60 80 100<br>AMBIENT TEMPERATURE °C<br>VOLTAGE DROP<br>VOLTAGE DROP<br>PERCENTAGE OF RATED CURRENT<br>**----- End of picture text -----**<br>


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1.6<br>1.4 MDL ‹Ω•�<br>1.2 MDL ⁄Ω™�<br>1.0 MDL ‹Ω¢�<br>MDL 1<br>0.8<br>MDL 1⁄Ω™�<br>0.6<br>0.4<br>0.2<br>0<br>5% 25% 50% 75% 100%<br>PERCENT OF RATED CURRENT<br>.14<br>.12 MDL 15<br>MDL 10<br>.1<br>.08<br>MDL 30<br>.06 MDL 25<br>MDL 20<br>.04<br>.02<br>0<br>5% 25% 50% 75% 100%<br>PERCENT OF RATED CURRENT<br>Time-Current Characteristic Curves–Average Melt<br>(Full Size Curves Available)<br>AMPERE<br>RATING<br>100<br>10<br>1<br>.1<br>.01<br>CURRENT IN AMPERES<br>VOLTAGE DROP<br>VOLTAGE DROP<br>3.2 5 7 10 15<br>⁄Ω¡º�⁄fiΩ¡ºº�⁄Ω•�¤Ω¡º�⁄Ω¢� ⁄Ω™� 1 2 3 4 6 8 12 202530<br>TIME IN SECONDS<br>.1 1 10 100 1,000<br>**----- End of picture text -----**<br>


## **2.0 Ambient Temperature Effect Chart  (Derating Curve)** 

The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann 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. Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann 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. 

Form No. MDL Page 2 of 2 BIF Doc #2004 

12-21-98 SB98107 Rev. A