BK/MDA-V-8-R

Effective August 2020 Supersedes July 2017 

Technical Data **2002** 

## MDA 1/4” x 1 1/4” Time-delay ceramic tube fuses 

## **HALOGEN Pb HF FREE** Q 

## **Agency information** 

- UL Listed Card: MDA 1/4 - 20 A (Guide JDYX, File E19180) 

- UL Recognized Card: MDA 25 - 30 A (Guide JDYX2, File E19180) 

- CSA Certification Card: MDA 1/4 - 20 A (Class No. 1422-01) 

- CSA Component Acceptance: MDA 25 - 30 A (Class No. 1422-30) 

## **General specifications** 

## **Product features** 

- Time-delay 

   - Shock: 1 A thru 30 A – MIL-STD-202, Method 213, Test Condition J 

   - Vibration: 1/4 A thru 30 A – MIL-STD-202, Method 204, Test Condition C (Except 5 g, 500 Hz) 

- Optional axial leads available 

- 1/4” x 1-1/4” (6.35 x 31.75 mm) physical size 

- Ceramic tube, nickel-plated brass endcap construction 

- UL Listed product meets standard 248-14 

## **Ordering** 

• Specify packaging code prefix, part number and and option code. Replace the "/" with a "-" (i.e. BK-MDA-BV-1-4-R) 

|**Electrical characteristics**|**Electrical characteristics**|**Electrical characteristics**|
|---|---|---|
|Ratedcurrent|Amprating|Openingtime|
|1/4 - 30 A|Ampating<br>100%|Opening<br>None|
||135%|60minutesmax.|
||200%|120secondsmax.|



## **Specifications** 

|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|**Specifications**<br>ACinterrupting<br>Part<br>Voltagerating<br>rating* (A)<br>DCinterrupting<br>rating (A)125 V<br>Typical DCcold<br>Typical<br>Typicalvoltage<br>number<br>Vac<br>Vdc<br>250 V<br>125 V<br>resistance** (Ω)<br>meltingI2t† AC<br>drop‡|
|---|---|---|---|---|---|---|---|---|
||Vac|Vdc|250 V|125 V|||||
|MDA-1/4-R|250|-|35|10000|-|8.7|0.748|4.00|
|MDA-1/2-R|250|-|35|10000|-|1.78|2.53|1.42|
|MDA-3/4-R|250|-|35|10000|-|0.82|8.58|1.31|
|MDA-1-R|250|-|35|10000|-|0.56|12.21|1.03|
|MDA-1-1/2-R|250|-|100|10000|-|0.2565|27.5|0.691|
|MDA-2-R|250|-|100|10000|-|0.17|70.4|0.623|
|MDA-2-1/2-R|250|125|200|10000|10000|0.068|31.79|0.213|
|MDA-3-R|250|125|200|10000|10000|0.0525|44.99|0.182|
|MDA-4-R|250|125|200|10000|10000|0.03575|147.4|0.162|
|MDA-5-R|250|125|200|10000|10000|0.0256|380.49|0.145|
|MDA-6-R|250|125|200|10000|10000|0.02035|587.73|0.141|
|MDA-7-R|250|125|200|10000|10000|0.0165|638.33|0.137|
|MDA-8-R|250|125|200|10000|10000|0.013|1038.4|0.134|
|MDA-10-R|250|125|200|10000|10000|0.00925|1620.43|0.135|
|MDA-12-R|250|125|750|10000|10000|0.00755|125.18|0.128|
|MDA-15-R<br>~~—————~~|250<br>~~—————~~|125<br>~~—————~~|750<br>~~—————~~|10000<br>~~—————~~|10000<br>~~———~~|0.00565<br>~~———~~|336.82<br>~~———~~|0.107|
|MDA-20-R<br>~~—————~~|250<br>~~—————~~|125<br>~~—————~~|1500<br>~~—————~~|10000<br>~~—————~~|10000<br>~~———~~|0.004065<br>~~———~~|483.45<br>~~———~~|0.095|
|MDA-25-R<br>~~—————~~|250<br>~~—————~~|125<br>~~—————~~|1500<br>~~—————~~|10000<br>~~—————~~|10000<br>~~———~~|0.0031<br>~~———~~|734.69<br>~~———~~|0.105|
|MDA-30-R<br>~~—————~~|250<br>~~—————~~|125<br>~~—————~~|1500<br>~~—————~~|10000<br>~~—————~~|10000<br>~~———~~|0.002465<br>~~———~~|1096.7<br>~~———~~|0.110|



* Interrupting ratings (Measured at 70% - 80% power factor on AC. The interrupting ratings for 25 A, 30 A were measured at 90% - 100% power factor on AC) ** DC Cold resistance (Measured at _<10% of rated current) 

† Typical melting I[2] t (A[2] sec) (I[2] t was measured at listed interrupting rating and rated voltage) ‡ Typical voltage drop (Voltage drop was measured at +25 °C ambient temperature at rated current) 

MDA 1/4” x 1 1/4” Time-delay ceramic tube fuses 

## Technical Data 2002 

## Effective August 2020 

## **Time-current curves (1/4 A - 6 1/4 A)** 

## **Time-current curves (7 A - 30 A)** 

**==> picture [304 x 211] intentionally omitted <==**

**----- Start of picture text -----**<br>
Dimensions - mm (in)<br>Drawing Not to Scale 'ry<br>38.10 32.82 38.10<br>Pa (1.500) (1.292) (1.500)<br>=—{ [| Re =a<br>FF 6.76 DIA. OF LEADS df<br>(0.266) 0–15 AMP: 0.81<br>(0.032)<br>20–30 AMP: 1.02<br>(0.040)<br>31.75 6.35<br>(1.250) (0.250)<br>Packaging code<br>Packaging code pre ix Description<br>BK- 100 fuses packed into a cardboard carton<br>Option code<br>Option code Description<br>B Sealed to withstand aqueous cleaning (Board washable)<br>V Axial leads - copper tinned wire with nickel plated brass overcaps<br>**----- End of picture text -----**<br>


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© 2020 Eaton All Rights Reserved Printed in USA Publication No. 2002 August 2020 

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