BK/C520-375-R

Effective May 2017 Supersedes April 2009 

Technical Data 

**2027** 

## C520 

## 5 mm x 15 mm Fast-acting glass tube fuses 

## **Agency information** 

- UL Listed Card: Guide JDYX, File E19180 

- CSA Certification Card: Class 1422-01, 53787 

## **Ordering** 

- Specify product code: Insert packaging code prefix before part number. E.g. BK (or BK1)/C520-500-R 

## **Product features** 

**==> picture [195 x 44] intentionally omitted <==**

**----- Start of picture text -----**<br>
Electrical Characteristics<br>Rated Current Amp Rating Opening Time<br>100% None<br>100mA - 5A 135% 1 hours max.<br>200% 2 seconds max.<br>**----- End of picture text -----**<br>


- Fast-acting 

- 5 x 14.48mm physical size 

- Glass tube, nickel-plated brass endcap construction 

- UL Listed product meets standard UL 248-14 

|**Specifications**<br>**Interrupting Rating**<br>**Voltage**<br>**Typical DC Cold**<br>**Typical**<br>**Typical**<br>**Part Number**<br>**Rating**<br>**at Rated Voltage (amps)**<br>**Resistance***<br>**Melting I 2t****<br>**Voltage**<br>**Vac**<br>**250Vac**<br>**125Vac**<br>**AC**<br>**Drop (mV)*****<br>**(**Ω**)**|**Specifications**<br>**Interrupting Rating**<br>**Voltage**<br>**Typical DC Cold**<br>**Typical**<br>**Typical**<br>**Part Number**<br>**Rating**<br>**at Rated Voltage (amps)**<br>**Resistance***<br>**Melting I 2t****<br>**Voltage**<br>**Vac**<br>**250Vac**<br>**125Vac**<br>**AC**<br>**Drop (mV)*****<br>**(**Ω**)**|**Specifications**<br>**Interrupting Rating**<br>**Voltage**<br>**Typical DC Cold**<br>**Typical**<br>**Typical**<br>**Part Number**<br>**Rating**<br>**at Rated Voltage (amps)**<br>**Resistance***<br>**Melting I 2t****<br>**Voltage**<br>**Vac**<br>**250Vac**<br>**125Vac**<br>**AC**<br>**Drop (mV)*****<br>**(**Ω**)**|**Specifications**<br>**Interrupting Rating**<br>**Voltage**<br>**Typical DC Cold**<br>**Typical**<br>**Typical**<br>**Part Number**<br>**Rating**<br>**at Rated Voltage (amps)**<br>**Resistance***<br>**Melting I 2t****<br>**Voltage**<br>**Vac**<br>**250Vac**<br>**125Vac**<br>**AC**<br>**Drop (mV)*****<br>**(**Ω**)**|**Specifications**<br>**Interrupting Rating**<br>**Voltage**<br>**Typical DC Cold**<br>**Typical**<br>**Typical**<br>**Part Number**<br>**Rating**<br>**at Rated Voltage (amps)**<br>**Resistance***<br>**Melting I 2t****<br>**Voltage**<br>**Vac**<br>**250Vac**<br>**125Vac**<br>**AC**<br>**Drop (mV)*****<br>**(**Ω**)**|**Specifications**<br>**Interrupting Rating**<br>**Voltage**<br>**Typical DC Cold**<br>**Typical**<br>**Typical**<br>**Part Number**<br>**Rating**<br>**at Rated Voltage (amps)**<br>**Resistance***<br>**Melting I 2t****<br>**Voltage**<br>**Vac**<br>**250Vac**<br>**125Vac**<br>**AC**<br>**Drop (mV)*****<br>**(**Ω**)**|**Specifications**<br>**Interrupting Rating**<br>**Voltage**<br>**Typical DC Cold**<br>**Typical**<br>**Typical**<br>**Part Number**<br>**Rating**<br>**at Rated Voltage (amps)**<br>**Resistance***<br>**Melting I 2t****<br>**Voltage**<br>**Vac**<br>**250Vac**<br>**125Vac**<br>**AC**<br>**Drop (mV)*****<br>**(**Ω**)**|
|---|---|---|---|---|---|---|
|||**250Vac**|**125Vac**||||
|**C520-100-R**<br>~~OO~~|250<br>~~OO~~|35<br>~~OO~~|10,000<br>~~OO~~|22.30<br>**()**<br>~~OO~~|0.0010<br>~~OO~~|**p()**<br>2230<br>~~OO~~|
|**C520-125-R**<br>~~OO~~|250<br>~~OO~~<br>~~a~~|35<br>~~OO~~|10,000<br>~~OO~~|15.20<br>~~OO~~|0.0019<br>~~OO~~|1930<br>~~OO~~|
|**C520-250-R**<br>~~eG~~|250<br>~~a~~<br>~~eG~~|35<br>~~eG~~|10,000<br>~~GO~~|5.60<br>~~GO~~|0.012<br>~~GO~~|1450|
|**C520-375-R**<br>~~eG~~<br>~~OO~~|250<br>~~eG~~<br>~~OO~~|35<br>~~eG ~~<br>~~OO~~|10,000<br> ~~GO~~<br>~~OO~~|2.53<br>~~GO~~<br>~~OO~~|0.039<br>~~GO~~<br>~~OO~~|968<br>~~OO~~|
|**C520-500-R**<br>~~OO~~<br>~~OO~~<br>~~es~~|250<br>~~OO~~<br>~~OO~~<br>~~OO~~|35<br>~~OO~~<br>~~OO~~<br>~~OO~~|10,000<br>~~OO~~<br>~~OO~~<br>~~OO~~|1.66<br>~~OO~~<br>~~OO~~<br>~~OO~~|0.059<br>~~OO~~<br>~~OO~~<br>~~OO~~|845<br>~~OO~~<br>~~OO~~<br>~~OO~~|
|**C520-750-R**<br>~~OO~~<br>~~es~~|250<br>~~OO~~<br>~~OO~~|35<br>~~OO~~<br>~~OO~~|10,000<br>~~OO~~<br>~~OO~~|0.91<br>~~OO~~<br>~~OO~~|0.264<br>~~OO~~<br>~~OO~~|686<br>~~OO~~<br>~~OO~~|
|**C520-1.5-R**<br>~~es~~<br>~~eG~~|250<br>~~OO~~<br>~~eG~~|100<br>~~OO~~<br>~~eG~~|10,000<br>~~OO~~<br>~~GO~~|0.900<br>~~OO~~<br>~~GO~~|0.800<br>~~OO~~<br>~~GO~~|135<br>~~OO~~<br>~~GO~~|
|**C520-2-R**<br>~~eG~~<br>~~GO~~|250<br>~~eG~~<br>~~GO~~|100<br>~~eG ~~<br>~~GO~~|10,000<br> ~~GO~~<br>~~GO~~|0.064<br>~~GO~~<br>~~GO~~|1.9<br>~~GO~~<br>~~GO~~|136<br>~~GO~~<br>~~GO~~|
|**C520-2.5-R**<br>~~GO~~<br>~~GO~~|250<br>~~GO~~<br>~~GO~~|100<br>~~GO~~<br>~~GO~~|10,000<br>~~GO~~<br>~~GO~~|0.046<br>~~GO~~<br>~~GO~~|2.9<br>~~GO~~<br>~~GO~~|121<br>~~GO~~<br>~~GO~~|
|**C520-3-R**<br>~~GO~~<br>~~Pf~~|250<br>~~GO~~<br>~~Pf~~|100<br>~~GO~~<br>~~Pf~~|10,000<br>~~GO~~<br>~~Pf~~|0.038<br>~~GO~~<br>~~Pf~~|6.1<br>~~GO~~<br>~~Pf~~|116<br>~~GO~~<br>~~Pf~~|
|**C520-3.5-R**<br>~~Pf~~<br>~~CG~~|250<br>~~Pf~~<br>~~CG~~|100<br>~~Pf~~<br>~~CG~~|10,000<br>~~Pf~~<br>~~GC~~|0.032<br>~~Pf~~<br>~~GC~~|9.7<br>~~Pf~~<br>~~GC~~|115<br>~~Pf~~|
|**C520-4-R**<br>~~CG~~<br>~~DG~~<br>~~es~~|250<br>~~CG~~<br>~~DG~~<br>~~GG~~|200<br>~~CG ~~<br>~~DG~~<br>~~GG~~|10,000<br> ~~GC~~<br>~~GC~~<br>~~GG~~|0.022<br>~~GC~~<br>~~GC~~<br>~~GG~~|16.6<br>~~GC~~<br>~~GC~~<br>~~GG~~|88<br>~~GG~~|
|**C520-5-R**<br>~~DG~~<br>~~es~~|250<br>~~DG~~<br>~~GG~~|200<br>~~DG ~~<br>~~GG~~|10,000<br> ~~GC~~<br>~~GG~~|0.018<br>~~GC~~<br>~~GG~~|22.4<br>~~GC~~<br>~~GG~~|91<br>~~GG~~|



- DC Cold Resistance (Measured at <10% of rated current) 

** Typical Melting I[2] t (A[2] Sec) (maximum I 2t at 10 times rated current) 

***Typical Voltage Drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current) 

C520 5 mm x 15 mm Fast-acting glass tube fuses 

Technical Data 2027 Effective May 2017 

## **Time-Current Curve** 

## **Dimensions - mm** 

Drawing Not to Scale 

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14.48<br>5.2<br>5.0 (Typ.)<br>= fe |<br>**----- End of picture text -----**<br>


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Amp<br>SA BSXSB VacOwWle<br>”-r NOWRk Tm ANIC LO Rating<br>10<br>1<br>1<br>.01<br>r rr oO<br>°<br>Current in Amps<br>Time in Seconds<br>**----- End of picture text -----**<br>


|**i**|**Packaging Code**|
|---|---|
|**Packaging Code Prefix**|**Description**|
|**i**<br>**BK**|100 fuses packed into a cardboard carton|
|**BK1**|1,000 fuses packed into a cardboard carton|



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© 2017 Eaton All Rights Reserved Printed in USA Publication No. 2027 BU-SB09252 May 2017 

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