High Current Fuses UL Recognized MEGA Fuses Rated 32V The MEGA Fuse is designed for high current circuit protection with Diffusion Pill Technology. The MEGA Fuse also provides time delay characteristics. Designed and patented by Littelfuse, the MEGA Fuse is ideal for battery and alternator protection application and other heavy gauge cables requiring ultra-high current protection. Specifications Voltage Rating: 32 VDC Interrupting Rating: 2000A 32 VDC Recommended Environmental Temperature: -40C to + 125C Terminals Material: Copper Housing Material: PPA-GF30FR (U.L. 94 Flammability rating - VO) Mounting Torque M8: 12-18 Nm Complies with: ISO 8820-5 ,UL 248 Special Purpose Fuses UL Recognized MEGA Fuses Ordering Information Time-Current Characteristics Time-Current Characteristic Curves Opening Time Min / Max (s) Package Bolt Part Number Rating % of Rating Size Size 80A-175A 0298xxx.ZXEH-UL 80 - 175 500 M8 75 / 100 14,400 / 135 120 / 1800 200 1 / 15 350 0.3 / 5 500 / 600 0.1 / 1 Ratings 2 Current Rating Color Test Cable Typ. Voltage Typ. Cold Typ. I t Part Number 2 2 (A) Code Size (mm ) Drop (mV) Resistance (m) (A s) 10 0298080.ZXEH-UL 80 87 0.72 21,500 0298100.ZXEH-UL 100 16 87 0.56 31,100 16 0298125.ZXEH-UL 125 80 0.42 57,800 0298150.ZXEH-UL 150 25 92 0.35 100,000 25 0298175.ZXEH-UL 175 62 0.23 168,000 2 The typical I 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 37 7High Current Fuses UL Recognized MEGA Fuses Rated 32V Dimensions Temperature Table Dimensions in mm for reference only. See outline drawing for dimensions and tolerances. max. allowed current load A at ambient temperature (typical derating) 68.6 -40C 0C 20C 65C 85C 110C 125C 50.8 80A 80 77 73 61 56 47 41 29.2 8.9 100A 100 97 91 76 69 58 51 8.6 125A 125 123 116 98 89 76 66 150A 150 143 135 114 103 87 76 298 32V LITTELFUSE 175A 175 175 171 142 128 107 92 XXX LT XXX PAT. 5293147 9.9 1.02 Typical Derating of Fuse Melting Element Temperature Security Margin is 20% Please contact Littelfuse for Details Regarding Derating Test Set-Up. WITH CURRENT TAB NAMES 180 8 0A 170 100A 160 125A 150 Max Recommended 140 150A Environmental 130 Temperature 175A 120 110 100 90 80 70 60 50 40 30 20 10 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 Ambient Temperature C 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 38 Max. Allowed Current Load A 19.0 16.3 XXX XXX XXX LT