MDA-1-R

Fuse, Cartridge, Time Delay, 1 A, 250 V, 6.3mm x 32mm, 1/4

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Manufacturer: EATON BUSSMANN
Product type: Cartridge Fuses
Fuse Current: 1A
Product Range: MDA
Fuse Size Metric: 6.3mm x 32mm
Fuse Size Imperial: 1/4" x 1-1/4"
Voltage Rating VAC: 250V
Blow Characteristic: Time Delay
Breaking Capacity Current AC: 35A

Delivery and price
Units per pack	1000
Price	0.525 €
Current stock	10+
Lead time	30 days

Datasheet

## 1 1 /4˝ x 1 /4˝  Ceramic Tube Fuses 

## MDA Series, Time-Delay 

## **Description** 

- Time-delay 

- Optional axial leads available 

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

- Ceramic tube, nickel-plated brass endcap construction 

- UL Listed product meets standard 248-14 

|**Electrical Characteristics**|**Electrical Characteristics**|**Electrical Characteristics**|
|---|---|---|
|**Rated Current**|**Amp Rating**|**Opening Time**|
|1/4 - 30A|**Amp Rating**<br>100%|**Opening Time**<br>None|
||135%|60 Minutes Max.|
||200%|120 Seconds Max.|



## **Agency Information** 

- UL Listed Card: MDA 2/10 - 20A (Guide JDYX, File E19180) 

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

- CSA Certification Card: MDA 2/10 - 20 (Class No. 1422-01) 

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

## **Environmental Data** 

- Shock: 1/100A and 8/10A – MIL-STD-202, Method 213, Test Condition I; 

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

- Vibration: 1/100A and 8/10A – MIL-STD-202, Method 201; 1/4A thru 30A – MIL-STD-202, Method 204, Test Condition C (Except 5g, 500HZ) 

## **Dimensions - mm (in)** 

Drawing Not to Scale 

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**----- Start of picture text -----**<br>
38.10 32.82 38.10<br>Pout, (1.500) (1.292) (1.500)<br>=< 6.76 TD DIA. OF LEADS 5<br>(0.266) 0.81<br>0–15 AMP:<br>(0.032)<br>1.02<br>20–30 AMP:<br>(0.040)<br>31.75 6.35<br>(1.250) (0.250)<br>741 TY<br>([ C)<br>Ordering<br>• Specify packaging, product, and option code<br>**----- End of picture text -----**<br>


|**SPECIFICATIONS**<br>**Part**<br>**Voltage**<br>**AC Interrupting**<br>**DC Interrupting**<br>**Typical DC Cold**<br>**Typical**<br>**Typical**<br>**Number**<br>**Rating**<br>**Rating* (amps)**<br>**Rating (amps)**<br>**Resistance****<br>**Melting I2t†**<br>**Voltage**<br>**Vac**<br>**Vdc**<br>**250V**<br>**125V**<br>**125V**<br>**(**Ω**)**<br>**AC**<br>**Drop‡**<br>**MDA-1/4-R**<br>250<br>-<br>35<br>10000<br>-<br>9.325<br>0.748<br>4.00<br>**MDA-1/2-R**<br>250<br>-<br>35<br>10000<br>-<br>1.925<br>2.53<br>1.42<br>**MDA-3/4-R**<br>250<br>-<br>35<br>10000<br>-<br>0.8555<br>8.58<br>1.31<br>**MDA-1-R**<br>250<br>-<br>35<br>10000<br>-<br>0.560<br>12.21<br>1.03<br>**MDA-1-1/2-R**<br>250<br>-<br>100<br>10000<br>-<br>0.2585<br>27.5<br>0.691<br>**MDA-2-R**<br>250<br>-<br>100<br>10000<br>-<br>0.170<br>70.4<br>0.623<br>**MDA-2-1/2-R**<br>250<br>-<br>200<br>10000<br>-<br>0.06685<br>31.79<br>0.213<br>**MDA-3-R**<br>250<br>-<br>200<br>10000<br>-<br>0.05350<br>44.99<br>0.182<br>**MDA-4-R**<br>250<br>-<br>200<br>10000<br>-<br>0.03625<br>147.4<br>0.162<br>**MDA-5-R**<br>250<br>-<br>200<br>10000<br>-<br>0.02610<br>380.49<br>0.145<br>**MDA-6-R**<br>250<br>-<br>200<br>10000<br>-<br>0.02120<br>587.73<br>0.141<br>**MDA-7-R**<br>250<br>-<br>200<br>10000<br>-<br>0.01690<br>638.33<br>0.137<br>**MDA-8-R**<br>250<br>-<br>200<br>10000<br>-<br>0.01350<br>1038.4<br>0.134<br>**MDA-10-R**<br>250<br>-<br>200<br>10000<br>-<br>0.00948<br>1620.43<br>0.135<br>**MDA-12-R**<br>250<br>-<br>750<br>10000<br>-<br>0.00725<br>125.18<br>0.128<br>**MDA-15-R**<br>250<br>-<br>750<br>10000<br>-<br>0.00553<br>336.82<br>0.107<br>Ce<br>~~|Fete]~~<br>~~|~~<br>~~————~~<br>~~—————~~<br>~~———~~<br>~~—————~~<br>~~———~~<br>~~—————~~<br>~~———~~<br>~~—————~~|
|---|
|**MDA-20-R**<br>250<br>125<br>1500<br>10000<br>10000<br>0.00400<br>483.45<br>0.095<br>**MDA-25A-R**<br>250<br>125<br>1500<br>10000<br>10000<br>0.00305<br>734.69<br>0.105<br>**MDA-30A-R**<br>250<br>125<br>1500<br>10000<br>10000<br>0.00243<br>1096.7<br>0.110<br>~~—_————————~~|
|*<br>Interrupting Ratings (Measured at 70% - 80% power factor on AC. The interrupting ratings for 25Amp, 30Amp 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) 

0709    SB-BU09312 

Data Sheet 2002 

Page 1 of 2 

## **Time-Current Curve** 

CURRENT  IN  AMPS 

|TIME  IN  SECONDS|1/4<br>1/2<br>1<br>2<br>3-2/10<br>4<br>5<br>6-1/4|1/4<br>1/2<br>1<br>2<br>3-2/10<br>4<br>5<br>6-1/4|1/4<br>1/2<br>1<br>2<br>3-2/10<br>4<br>5<br>6-1/4|1/4<br>1/2<br>1<br>2<br>3-2/10<br>4<br>5<br>6-1/4|1/4<br>1/2<br>1<br>2<br>3-2/10<br>4<br>5<br>6-1/4||
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CURRENT  IN  AMPS 

**==> picture [523 x 119] intentionally omitted <==**

**----- Start of picture text -----**<br>
Packaging Code<br>Packaging Code Description<br>BK 100 fuses packed into a cardboard carton<br>BK1 1,000 fuses packed into a cardboard carton<br>BK8 8,000 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>


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

Life Support Policy: Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 

0709    SB-BU09312 

Data Sheet 2002 

Page 2 of 2

Updated at February 9, 2023

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