BK/ABC-8-R

## **1 1 ⁄4” x 1 ⁄4” Glass Tube Fuses** 

## ABC Series, Fast-Acting, Ceramic Tube 

## **Description** 

- Fast-acting, ceramic tube 

- Optional axial leads available 

- 1⁄4” x 1 1⁄4” (6.4 x 31.7mm) physical size 

- Ceramic tube, nickel-plated brass endcap construction 

- UL Listed product meets standard 248-14 

|• Fast-acting, ceramic tube<br>• Optional axial leads available<br>•<br>1⁄4” x 1 1⁄4” (6.4 x 31.7mm) physical size⁄4” x 1 1⁄4” (6.4 x 31.7mm) physical size4” x 1 1⁄4” (6.4 x 31.7mm) physical size” x 1 1⁄4” (6.4 x 31.7mm) physical size1⁄4” (6.4 x 31.7mm) physical size⁄4” (6.4 x 31.7mm) physical size4” (6.4 x 31.7mm) physical size” (6.4 x 31.7mm) physical size<br>• Ceramic tube, nickel-plated brass endcap construction<br>• UL Listed product meets standard 248-14|• Fast-acting, ceramic tube<br>• Optional axial leads available<br>•<br>1⁄4” x 1 1⁄4” (6.4 x 31.7mm) physical size⁄4” x 1 1⁄4” (6.4 x 31.7mm) physical size4” x 1 1⁄4” (6.4 x 31.7mm) physical size” x 1 1⁄4” (6.4 x 31.7mm) physical size1⁄4” (6.4 x 31.7mm) physical size⁄4” (6.4 x 31.7mm) physical size4” (6.4 x 31.7mm) physical size” (6.4 x 31.7mm) physical size<br>• Ceramic tube, nickel-plated brass endcap construction<br>• UL Listed product meets standard 248-14|
|---|---|
|**ELECTRICAL CHARACTERISTICS**||
|**% of Amp Rating**|**Opening Time**|
|**% of Amp Rating**<br>100%|**Opening Time**<br>4 Hours Minimum|
|135%|60 Minutes maximum|
|200%|120 Seconds Maximum|



## **Dimensions - mm** 

Drawing Not to Scale 

## **Agency Information** 

- UL Listed Guide JDYX & File E19180 

- UL Recognition Guide JDYX2 & File E19180 

- CSA Certification: Class No: 1422-01 & 1422-30, File 53787 

## **Environmental Data** 

- Shock:[1] ⁄4A - 30A – MIL-STD-202, Method 213, Test Condition J 

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

## **Ordering** 

- Specify packaging, product and option code 

|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|Test Condition C (Except 5g, 500Hz)<br>**Ordering**<br>• Specify packaging, product and option code<br>~~”~~<br>~~7.250~~<br>~~|~~<br>1250]<br>i;|
|---|---|---|---|---|---|---|---|---|---|---|
|**Specifications**|||||||||||
|Part<br>Number<br>~~po~~|Voltage<br>Ratings||Vac Interrupting<br>Ratings* (amps)||**Specifications**<br>Vdc Interrupting<br>Ratings (amps)||**Specifications**<br>Typical<br>DC Cold<br>Resistance(Ω)**|Typical<br>Pre-Arc<br>I2t AC†|Typical<br>Voltage<br>Agency Approvals<br>Drop (V)‡<br>UL|Agency Approvals|
||Vac|Vdc|250|125|125|75||||UR<br>CSA|
|ABC-1⁄4-R<br>~~po~~<br>~~po~~|250|125|35|10,000|10,000|–|2.950|0.0020|0.35<br>X|X|
|ABC-1⁄2-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|35|10,000|10,000|–|0.587|0.0390|0.41<br>X|X|
|ABC-3⁄4-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|35|10,000|10,000|–|0.300|0.1450|0.32<br>X|X|
|ABC-1-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|35|10,000|10,000|–|0.1950|0.4310|0.3<br>X|X|
|ABC-1-1⁄2-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|100|10,000|10,000|–|0.131|1.1630|0.28<br>X|X|
|ABC-2-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|100|10,000|10,000|–|0.0890|2.1670|0.31<br>X|X|
|ABC-2-1⁄2-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|100|10,000|10,000|–|0.061|4.4670|0.23<br>X|X|
|ABC-3-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|100|10,000|10,000|–|0.047|6.55|0.14<br>X|X|
|ABC-4-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|200|10,000|10,000|–|0.031|22.28|0.17<br>X|X|
|ABC-5-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|200|10,000|10,000|–|0.026|32.83|0.22<br>X|X|
|ABC-6-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|200|10,000|10,000|–|0.021|58|0.19<br>X|X|
|ABC-7-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|200|10,000|10,000|–|0.016|109.33|0.17<br>X|X|
|ABC-8-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|200|10,000|10,000|–|0.014|116.5|0.19<br>X|X|
|ABC-10-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|200|10,000|10,000|–|0.011|208.8|0.15<br>X|X|
|ABC-12-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|750|10,000|10,000|–|0.0068|133.3|0.1<br>X|X|
|ABC-15-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|750|10,000|10,000|–|0.00553|200.2|0.1<br>X|X|
|ABC-18-R<br>~~po~~<br>~~po~~<br>~~po~~|250|–|400|1000|–|–|0.00465|400|0.1|X<br>X|
|ABC-20-R<br>~~po~~<br>~~po~~<br>~~po~~|250|125|400|1000|10,000|–|0.00366|550.8|0.1|X<br>X|
|ABC-25-R<br>~~po~~<br>~~po~~|250|125|200|1000|400|1000|0.0028|839.3|0.09|X<br>X‡‡|
|ABC-30-R<br>~~po~~|250|125|200|1000|400|1000|0.002225|1429|0.09|X<br>X‡‡|



- Interrupting ratings measured at 70% - 80% power factor on AC. The interrupting ratings for 18A and 20A were measured at 85% - 95% power factor on AC. The interrupting ratings for 25A and 30A were measured at 89% power factor on AC. 

- ** Typical DC cold resistance measured at <10% of rated current. 

- Typical melting I2t measured at listed interrupting rating and rated voltage. 

- Typical voltage drop measured at 25°C±3°C ambient temperature at rated current. 

- ‡‡ CSA approvals for 25A and 30A are at 125Vac - IR 1000A and 125Vdc - IR 400A (IR 1000A at 75Vdc) 

0613    BU-SB13635 

Data Sheet 2000 

Page 1 of 2 

## **Time-Current Curves** 

**==> picture [469 x 432] intentionally omitted <==**

**----- Start of picture text -----**<br>
1 3<br>15<br>18<br>10 12 20 25<br>5 8<br>30<br>Current in Amps<br>Time in Seconds<br>**----- End of picture text -----**<br>


|Current in Amps|Current in Amps|
|---|---|
|**PACKAGING CODE**||
|**Packaging Code**|**Description**|
|<br>**BK**|100 pieces of fuses packed into a cardboard carton|
|**BK1**|<br>1000 pieces of fuses packed into a cardboard carton|
|**BK8**|<br>8000 pieces of fuses packed into a cardboard carton|
|||
|**OPTION CODE**||
|**Option Code**|**Description**|
|<br>**V**|Axial leads - copper tinned wire with nickel plated brass overcaps|



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. 

©2013 Cooper Bussmann www.cooperbussmann.com 

0613    BU-SB13635 

Data Sheet 2000 

Page 2 of 2