0299025.ZXNV

Blade Fuses 

## MAXI Blade Fuses Rated 32V 

The MAXI[®] fuse uses “Diffusion Pill Technology” to provide predictable time delay characteristics and low heat dissipation. 

MAXI Blade Fuses 

## Specifications 

MAXI MAXI Sn (Silver Plated) (Tin Plated) Voltage Rating: 32 VDC 32 VDC Interrupting Rating: 1000A @ 32 VDC 1000A @ 32 VDC *Recommended Environmental Temperature: -40˚C to +125˚C -40˚C to +125˚C Terminals Material: Silver plated zinc alloy Tin plated zinc alloy Housing Material: PA66 PA66 (U.L. 94 Flammability rating – V2) (U.L. 94 Flammability rating – V2) Net Weight Per Fuse: 5.7±5% gr 5.7±5% gr Complies with: SAE J 1888, SAE 2576, SAE J 1888, SAE 2576, ISO 8820-3:2002(E) ISO 8820-3:2002(E) 

*Tin plating’ ~~s~~ temperature limit is ≈130˚C, Silver plating allows up to 150˚C at the interface. 

MAXI Sn Fuse (tin plated) 

## Time-Current Characteristic Curves 

## Ordering Information 

## Time-Current Characteristics 

|**Part Number**|**Rating**|**Package**<br>**Size**|**% of Rating**|**Opening Time**<br>**Min / Max (s)**|
|---|---|---|---|---|
|~~0299xxx.ZXNV~~<br>~~0299xxx.L~~<br>~~0299xxx.TXN~~|20 ~~- ~~80<br>20~~-~~80<br>20~~-~~80|1200<br>50<br>10|100<br>135<br>200|360,000  /∞<br>60  / 1,800<br>2  / 60|
|MAXI Sn Fuse<br>0299xxx.ZXT<br>||20 - 80<br>|<br>||1200<br>||350<br>600|0.2  / 7<br>0.04  / 1|



## Ratings 

|**Part Number**|**Current**<br>**Rating (A)**|**Housing**<br>**Material Color**|**Test Cable**<br>**Size (mm2)**|**Typ. Voltage**<br>**Drop (mV)**|**Typ. Cold**<br>**Resistance (m**Ω**)**|Typ.**I2t**<br>**(A2s)**|
|---|---|---|---|---|---|---|
|0299020._|20||4|76|3.10|1,100|
|0299025._<br>0299030._<br>0299035._<br>0299040._<br>0299050._<br>0299060._<br>0299070._|25<br>30<br>35<br>40<br>50<br>60<br>70|=<br>||<br>|_|<br>=<br>=<br>|||4<br>4<br>4<br>4<br>6<br>6<br>10|75<br>77<br>75<br>75<br>73<br>77<br>61|2.39<br>1.95<br>1.71<br>1.42<br>1.10<br>0.89<br>0.64|2,100<br>4,100<br>6,000<br>8,500<br>11,300<br>15,300<br>21,200|
|0299080._|80||10|62|0.54|43,600|



The typical I[2] t is an average value calculated from the breaking capacity tests by using the melting time before the arcing occurs. 

## REV07272021 

Littelfuse® products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse® product documentation.  Warranties granted by Littelfuse® shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse® documentation.  Littelfuse® shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse® as set forth in applicable Littelfuse® documentation.  The sale and use of Littelfuse® products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse®. 

littelfuse.com 

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## Blade Fuses 

## MAXI Blade Fuses Rated 32V 

## Dimensions 

Dimensions in mm for reference only. See outline drawing for dimensions and tolerances. 

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29.2 8.9<br>21.6<br>12.7 0. 8<br>8<br>29.2<br>**----- End of picture text -----**<br>


## Temperature Table 

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max. allowed current load [A] at ambient temperature (typical derating)<br>-40°C 0°C 20°C 65°C 85°C 110°C 125°C<br>20A 20 20 20 20 18 15 13<br>25A 25 25 25 23 21 18 15<br>30A 30 30 30 28 25 21 18<br>35A 35 35 35 30 27 23 19<br>40A 40 40 40 34 30 25 22<br>50A 50 50 50 42 38 31 27<br>60A 60 60 56 47 42 35 31<br>70A 70 70 68 57 51 43 37<br>80A 80 78 74 62 56 47 40<br>**----- End of picture text -----**<br>


## Typical Derating of Fuse Melting Element 

Temperature Security Margin is 20% 

Please contact Littelfuse[®] for Details Regarding Derating Test Set-Up. 

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**----- Start of picture text -----**<br>
20A<br>80<br>25A<br>30A<br>70 35A<br>40A<br>60 Max  EnvironmentalRecommended  50A<br>Temperature 60A<br>70A<br>50<br>80A<br>40<br>30<br>20<br>10<br>0<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180<br>Ambient Temperature [°C]<br>Max. Allowed Current Load [A]<br>**----- End of picture text -----**<br>


Derating curves may change depending on the final condition of the application (terminals characteristics, wire size etc..). Please ask Littelfuse[®] for more information. 

## REV07272021 

Littelfuse® products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse® product documentation.  Warranties granted by Littelfuse® shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse® documentation.  Littelfuse® shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse® as set forth in applicable Littelfuse® documentation.  The sale and use of Littelfuse® products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse®. 

littelfuse.com 

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