BK1/GMA-4-R

Effective May 2017 Supersedes April 2010 

Technical Data 

**2017** 

## GMA 

## 5 mm x 20 mm Fast-acting glass tube fuses 

## **Agency information** 

- UL Listed, Guide JDYX, File E19180, 63mA-6A 

- UL Recognized, Guide JDYX2, File E19180, 

   - 7-15A 

- CSA Certified, Class 1422-01, File 53787, 63mA-6A 

- PSE Approval, 1A-15A 

## **Ordering** 

- Specify packaging, product, and option code 

## **Product features** 

   - Ratings above 6.3A have a 0.8 mm diameter lead 

   - With TR2 packaging code, lead wire length is 19.05 mm 

   - 

- Fast-acting, low breaking capacity 

- Optional axial leads available 

- 5 x 20mm physical size 

- Glass tube, silver-plated (63mA-315mA) and nickel-plated (500mA-15A) brass endcap construction 

|•<br>With TR2 packaging code, lead wire length is 19.05 mm|•<br>With TR2 packaging code, lead wire length is 19.05 mm|•<br>With TR2 packaging code, lead wire length is 19.05 mm|
|---|---|---|
|**Electrical Characteristics**|||
|**Rated Current**|**% of Amp Rating**|**Opening Time**|
|63mA - 15A|**% of Amp Rating**<br>100%|**Opening Time**<br>None|
||135%|60 minutes maximum|
||200%|2 minutes maximum|



- Designed to UL/CSA 248-14 

## 

|**Specifications**<br>**Voltage**<br>**Interrupting**<br>**Rating (amps)***<br>**Typical DC Cold**<br>**Typical**<br>**Maximum**<br>**Product Code**<br>**Amp**<br>**Rating**<br>**Resistance**<br>**Pre-Arc I**<br>**2t**<br>**Voltage**<br>**Rating**<br>**Vac**<br>**250Vac **<br>**12**5V**ac**<br>**Vac†**<br>**Drop (mV)‡**<br>**(**Ω**)****|**Specifications**<br>**Voltage**<br>**Interrupting**<br>**Rating (amps)***<br>**Typical DC Cold**<br>**Typical**<br>**Maximum**<br>**Product Code**<br>**Amp**<br>**Rating**<br>**Resistance**<br>**Pre-Arc I**<br>**2t**<br>**Voltage**<br>**Rating**<br>**Vac**<br>**250Vac **<br>**12**5V**ac**<br>**Vac†**<br>**Drop (mV)‡**<br>**(**Ω**)****|**Specifications**<br>**Voltage**<br>**Interrupting**<br>**Rating (amps)***<br>**Typical DC Cold**<br>**Typical**<br>**Maximum**<br>**Product Code**<br>**Amp**<br>**Rating**<br>**Resistance**<br>**Pre-Arc I**<br>**2t**<br>**Voltage**<br>**Rating**<br>**Vac**<br>**250Vac **<br>**12**5V**ac**<br>**Vac†**<br>**Drop (mV)‡**<br>**(**Ω**)****|**Specifications**<br>**Voltage**<br>**Interrupting**<br>**Rating (amps)***<br>**Typical DC Cold**<br>**Typical**<br>**Maximum**<br>**Product Code**<br>**Amp**<br>**Rating**<br>**Resistance**<br>**Pre-Arc I**<br>**2t**<br>**Voltage**<br>**Rating**<br>**Vac**<br>**250Vac **<br>**12**5V**ac**<br>**Vac†**<br>**Drop (mV)‡**<br>**(**Ω**)****|**Specifications**<br>**Voltage**<br>**Interrupting**<br>**Rating (amps)***<br>**Typical DC Cold**<br>**Typical**<br>**Maximum**<br>**Product Code**<br>**Amp**<br>**Rating**<br>**Resistance**<br>**Pre-Arc I**<br>**2t**<br>**Voltage**<br>**Rating**<br>**Vac**<br>**250Vac **<br>**12**5V**ac**<br>**Vac†**<br>**Drop (mV)‡**<br>**(**Ω**)****|**Specifications**<br>**Voltage**<br>**Interrupting**<br>**Rating (amps)***<br>**Typical DC Cold**<br>**Typical**<br>**Maximum**<br>**Product Code**<br>**Amp**<br>**Rating**<br>**Resistance**<br>**Pre-Arc I**<br>**2t**<br>**Voltage**<br>**Rating**<br>**Vac**<br>**250Vac **<br>**12**5V**ac**<br>**Vac†**<br>**Drop (mV)‡**<br>**(**Ω**)****|**Specifications**<br>**Voltage**<br>**Interrupting**<br>**Rating (amps)***<br>**Typical DC Cold**<br>**Typical**<br>**Maximum**<br>**Product Code**<br>**Amp**<br>**Rating**<br>**Resistance**<br>**Pre-Arc I**<br>**2t**<br>**Voltage**<br>**Rating**<br>**Vac**<br>**250Vac **<br>**12**5V**ac**<br>**Vac†**<br>**Drop (mV)‡**<br>**(**Ω**)****|**Specifications**<br>**Voltage**<br>**Interrupting**<br>**Rating (amps)***<br>**Typical DC Cold**<br>**Typical**<br>**Maximum**<br>**Product Code**<br>**Amp**<br>**Rating**<br>**Resistance**<br>**Pre-Arc I**<br>**2t**<br>**Voltage**<br>**Rating**<br>**Vac**<br>**250Vac **<br>**12**5V**ac**<br>**Vac†**<br>**Drop (mV)‡**<br>**(**Ω**)****|
|---|---|---|---|---|---|---|---|
||||**250Vac **<br>**12**5V**ac**|||||
|**GMA-63-R**<br>~~a~~|**g**<br>63mA<br>~~ee~~|250<br>~~sO~~|35<br>~~sO~~|10,000<br>~~sO~~|15.750<br>**()**<br>~~sO~~|**†**<br>0.00024<br>~~sO~~|**op()‡**<br>4700<br>~~sO~~|
|**GMA-100-R**<br>~~a~~|100mA<br>~~ee~~|250<br>~~sO~~|35<br>~~sO~~|10,000<br>~~sO~~|7.840<br>~~sO~~|0.0001<br>~~sO~~|4300<br>~~sO~~|
|**GMA-125-R**<br>~~a~~|125mA<br>~~ee~~|250<br>~~sO~~|35<br>~~sO~~|10,000<br>~~sO~~|4.895<br>~~sO~~|0.0024<br>~~sO~~|2600<br>~~sO~~|
|**GMA-200-R**<br>~~GG~~|200mA<br>~~GG~~|250<br>~~GG~~|35<br>~~GG~~|10,000<br>~~GG~~|2.500<br>~~OO~~|0.001<br>~~OO~~|3400<br>~~OO~~|
|**GMA-250-R**<br>~~GG~~<br>~~a~~|250mA<br>~~GG~~<br>~~a~~|250<br>~~GG~~<br>~~a~~|35<br>~~GG~~<br>~~a~~|10,000<br>~~GG ~~<br>~~a~~|1.735<br> ~~OO~~<br>~~a~~|0.018<br>~~OO~~<br>~~a~~|2200<br>~~OO~~<br>~~a~~|
|**GMA-300-R**<br>~~a~~|300mA<br>~~a~~|250<br>~~a~~|35<br>~~a~~|10,000<br>~~a~~|0.906<br>~~a~~|0.019<br>~~a~~|470<br>~~a~~|
|**GMA-315-R**<br>~~a~~<br>~~se~~|315mA<br>~~a~~<br>~~se~~|250<br>~~a~~<br>~~se~~|35<br>~~a~~<br>~~se~~|10,000<br>~~a~~<br>~~se~~|0.839<br>~~a~~<br>~~se~~|0.019<br>~~a~~<br>~~se~~|450<br>~~a~~<br>~~se~~|
|**GMA-500-R**<br>~~se~~|500mA<br>~~se~~|250<br>~~se~~|35<br>~~se~~|10,000<br>~~se~~|0.454<br>~~se~~|0.15<br>~~se~~|230<br>~~se~~|
|**GMA-600-R**<br>~~eT~~|600mA<br>~~eT~~|250<br>~~eT~~|35<br>~~eT~~|10,000<br>~~eT~~|0.256<br>~~eT~~|0.32<br>~~eT~~|200<br>~~eT~~|
|**GMA-750-R**<br>~~eT~~|750mA<br>~~eT~~|250<br>~~eT~~|35<br>~~eT~~|10,000<br>~~eT~~|0.186<br>~~eT~~|0.47<br>~~eT~~|200<br>~~eT~~|
|**GMA-800-R**<br>~~EE~~|800mA<br>~~EE~~|250<br>~~EE~~|35<br>~~EE~~|10,000<br>~~EE~~|0.170<br>~~EE~~|0.70<br>~~EE~~|180<br>~~EE~~|
|**GMA-1-R**<br>~~EE~~|1<br>~~EE~~|250<br>~~EE~~|35<br>~~EE~~|10,000<br>~~EE~~|0.163<br>~~EE~~|0.48<br>~~EE~~|300<br>~~EE~~|
|**GMA-1.25-R**<br>~~a~~|1.25<br>~~a~~|250<br>~~a~~|100<br>~~a~~|10,000<br>~~a~~|0.122<br>~~a~~|0.84<br>~~a~~|290<br>~~a~~|
|**GMA-1.5-R**<br>~~a~~|1.5<br>~~a~~|250<br>~~a~~|100<br>~~a~~|10,000<br>~~a~~|0.090<br>~~a~~|1.6<br>~~a~~|270<br>~~a~~|
|**GMA-1.6-R**<br>~~a~~|1.6<br>~~a~~|250<br>~~a~~|100<br>~~a~~|10,000<br>~~a~~|0.080<br>~~a~~|2.0<br>~~a~~|260<br>~~a~~|
|**GMA-2-R**<br>~~a~~|2<br>~~a~~<br>~~CG~~|250<br>~~a~~<br>~~CG~~|100<br>~~a~~<br>~~CG~~|10,000<br>~~a~~<br>~~CG~~|0.066<br>~~a~~<br>~~CG~~|3.1<br>~~a~~<br>~~CG~~|250<br>~~a~~<br>~~CG~~|
|**GMA-2.5-R**<br>~~a~~<br>~~a~~|2.5<br>~~a~~<br>~~CG~~<br>~~Re~~|250<br>~~a~~<br>~~CG~~<br>~~OO~~|100<br>~~a~~<br>~~CG~~<br>~~OO~~|10,000<br>~~a~~<br>~~CG~~<br>~~OO~~|0.046<br>~~a~~<br>~~CG~~<br>~~OO~~|4.9<br>~~a~~<br>~~CG~~<br>~~OO~~|240<br>~~a~~<br>~~CG~~<br>~~OO~~|
|**GMA-3-R**<br>~~a~~|3<br>~~Re~~|250<br>~~OO~~|100<br>~~OO~~|10,000<br>~~OO~~|0.039<br>~~OO~~|8.8<br>~~OO~~|215<br>~~OO~~|
|**GMA-3.15-R**<br>~~a~~|3.15<br>~~Re~~|125<br>~~OO~~|-<br>~~OO~~|10,000<br>~~OO~~|0.036<br>~~OO~~|9.7<br>~~OO~~|210<br>~~OO~~|
|**GMA-3.5-R**<br>~~aa~~|3.5<br>~~aa~~|125<br>~~aa~~|-<br>~~aa~~|10,000|0.030|13|210|
|**GMA-4-R**|4|125|-|10,000|0.026|19|205|
|**GMA-5-R**<br>~~a~~|5<br>~~aCG~~|125<br>~~CG~~|-<br>~~CG~~|10,000<br>~~CG~~|0.021<br>~~GOO~~|29<br>~~GOO~~|200<br>~~GOO~~|
|**GMA-6-R**<br>~~a~~|6<br>~~aCG~~|125<br>~~CG~~|-<br>~~CG~~|10,000<br>~~CG ~~|0.017<br> ~~GOO~~|45<br>~~GOO~~|180<br>~~GOO~~|
|**GMA-7-R**<br>~~GG~~|7<br>~~GG~~|125<br>~~GG~~|-<br>~~GG~~|200<br>~~GG~~|0.012<br>~~GG~~|150<br>~~OO~~|110<br>~~OO~~|
|**GMA-8-R**<br>~~GG~~<br>~~a~~|8<br>~~GG~~<br>~~ee~~|125<br>~~GG~~<br>~~CO~~|-<br>~~GG~~<br>~~CO~~|200<br>~~GG~~<br>~~CO~~|0.009<br>~~GG~~<br>~~CO~~|280<br>~~OO~~<br>~~CO~~|110<br>~~OO~~<br>~~CO~~|
|**GMA-10-R**<br>~~a~~|10<br>~~ee~~|125<br>~~CO~~|-<br>~~CO~~|200<br>~~CO~~|0.006<br>~~CO~~|280<br>~~CO~~|110<br>~~CO~~|
|**GMA-15-R**<br>~~a~~|15<br>~~ee~~|125<br>~~CO~~|-<br>~~CO~~|150<br>~~CO~~|0.004<br>~~CO~~|950<br>~~CO~~|100<br>~~CO~~|



- Interrupting ratings: Interrupting ratings for 63mA - 6A were measured at 70% - 80% power factor on AC. The interrupting ratings for 7A - 15A were measured at 100% power factor on AC. 

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

- Typical Pre-Arching I 2t (I 2t was measured at listed interrupting rating and rated voltage) 

- Maximum Voltage drop (Voltage drop was measured at 20°C ambient temperature at rated current) 

GMA 5 mm x 20 mm Fast-acting glass tube fuses 

Technical Data 2017 Effective May 2017 

## **Dimensions - mm** 

**==> picture [99 x 134] intentionally omitted <==**

**----- Start of picture text -----**<br>
38. 10 mm<br>(± .3 ±8)<br>5.54mm [ ' \<br>  ( ±.20)<br>10mm 20mm 21.1 0m m<br>(± 2.0) (± 0.5) (±. 81 )<br>“|<br>5.2mm 38.1 0m m<br>(+0.1/-0.2)<br>0.65mm<br>(REF)<br>**----- End of picture text -----**<br>


## **Time-Current Curve – GMA-R 63mA-800mA** 

## **Time-Current Curve – GMA-R 1-15A** 

**==> picture [13 x 5] intentionally omitted <==**

**----- Start of picture text -----**<br>
(± .3 8)<br>**----- End of picture text -----**<br>


||**Packaging Code**|
|---|---|
|**Packaging Code**|**Description**|
|**BK**|100fuses packedinto a cardboard carton|
|**BK1**|1000fuses packedinto a poly bag|
|**TR2**|1500 fuses packed into tape on a reel (19.05mm lead wire length)|
|||
||**Option Code**|
|**Option Code**|**Description**|
|**V**|Axial leads - copper tinned wire with nickel-plated brass overcaps|



Life Support Policy: Eaton 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. 

Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. 

## **Eaton** 

**Electronics Division** 1000 Eaton Boulevard Cleveland, OH 44122 United States www.eaton.com/electronics 

© 2017 Eaton All Rights Reserved Printed in USA Publication No. 2017 BU-SB091174 May 2017 

Eaton is a registered trademark. All other trademarks are property of their respective owners.