High Current Fuses ZCASE Single MEGA/Starter Fuse The Single ZCASE is a Minimal Footprint Bolt Down Fuse with a wide rating range up to 600A in the same packaging size. The Time Current characteristic is similar to the well known MEGA Design and can used as full wire protection until 250A. Higher ratings mostly used for typically Starter Fuse application as a protector fuse. The fuse design is optimized for a one bolt connection M6 (40A - 250A) or M8 (300A - 600A) and can used directly on a battery post or busbar connection. Littelfuse is offering a complete solution for the necessary stud and different busbar connections including some battery clamps. Specifications Voltage Rating: 32V DC Interrupting Rating: 2000A 32V VDC Recommended Environmental Temperature: -40 to 125C Terminal Material: Tin plated Copper ZCASE Single Mega/Starter Fuse Housing Material: PPA-GF33HS (U.L. 94 Flammability rating - HB) Insulating Tube: Out of ceramic Mounting Torque M6: 9.8Nm1.4Nm Mounting Torque M8: 14Nm2Nm Time-Current Characteristic Curves See note on next page regarding Test Set-Up Ordering Information Time-Current Characteristics Opening Time Min / Max (s) 10000 10000 Package % of Part Number Rating Size Rating 40A - 250A 300A - 500A 600A 1000 1000 3298XXX.ZXSTA 300 - 600 480 50 / 14,400 / 14,400 / 3298XXX.Z 40 - 250 SHUNT 480 100 14,400 / / / 100 100 3298XXX.H 40 - 600 100 135 120 / 1800 / / 200 1 / 15 1 / 40 1 / 40 10 10 350 0.3 / 5 0.3 / 5 0.3 / 5 500 / / 0.1 / 1 600 0.1 / 1 0.1 / 1 / 1 1 Ratings Part number Current Test Cable Typ. Voltage Typ. Cold Typ. It 2 2 0.1 0.1 Rating (A) Size (mm ) Drop (mV) Resistance (m) (A s) 3298040.Z / 3298040.H 40 4 86 1.53 5,000 0.01 0.01 3298060.Z / 3298060.H 60 6 83 0.98 18,000 10 100 1000 10000 10 100 1000 10000 CURRENT A CURRENT A 3298080.Z / 3298080.H 80 10 80 0.72 15,500 3298100.Z / 3298100.H 100 16 88 0.57 31,000 10000 10000 3298125.Z / 3298125.H 125 16 71 0.39 45,000 3298150.Z / 3298150.H 150 25 83 0.32 75,000 1000 1000 3298175.Z / 3298175.H 175 25 82 0.26 140,000 3298200.Z / 3298200.H 200 35 92 0.23 235,000 100 100 3298225.Z / 3298225.H 225 35 86 0.18 95,000 3298250.Z / 3298250.H 250 50 88 0.17 160,000 1 2 3298300.ZXSTA / 3298300.H 300 35 29 0.13 310,000 10 10 1 2 3298350.ZXSTA / 3298350.H 350 35 30 0.10 570,000 1 2 3298400.ZXSTA / 3298400.H 400 50 30 0.08 870,000 1 1 1 2 3298500.ZXSTA / 3298500.H 500 50 34 0.07 1,550,000 1 2 3298600.ZXSTA / 3298600.H 600 50 36 0.05 3,000,000 0.1 0.1 3298900.Z / SHUNT 50 - - - Note 1 STARTER fuses Note 2 Voltage Drop taken at 50% of Rated Current 0.01 0.01 10 100 1000 10000 10 100 1000 10000 2 The typical I t is an average value calculated from the breaking capacity tests by using the melting time before the arcing occurs. CURRENT A CURRENT A 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 30 TIME s 40A 60A 80A 100A 125A 150A 175A 200A 225A 250A TIME s TIME s 40A 60A 80A 100A 125A 150A 300A 175A 350A 200A 400A 225A 450A 250A 500A TIME s 300A 350A 400A 450A 500A 8.5 High Current Fuses Assembly Components (sold separately) ZCASE Single Mega/Starter Fuse Dimensions Dimensions in mm for reference only. See outline drawing for dimensions and tolerances. 12.5 12.5 Part No. Description 882-853 3-Way Bus Bar with M8 Insulating Bolts Assembly* 882-854 2-Way Bus Bar with M8 Insulating Bolts Assembly* 26.6 876-199 Battery Terminal Mount 32980001ZXM8 M8 Insulating Bolt *M8 Nuts not inlcuded Please contact your Littelfuse representative for application support and information on mating hardware. Typical Derating of Fuse Melting Element Temperature Table Temperature Security Margin is 20% max. allowed current load A at ambient temperature Please contact Littelfuse for Details Regarding Derating Test Set-Up. -20C 0C 20C 65C 85C 110C 125C 260 4 0A 250 40A 40 40 40 37 33 28 25 6 0A 240 230 8 0A 60A 60 60 59 49 43 36 31 220 100A 210 125A 200 80A 80 80 79 67 61 52 45 150A 190 175A 180 Max Recommended 100A 100 100 98 83 75 63 55 200A 170 160 Environmental 225A 150 125A 125 123 116 97 88 74 64 250A Temperature 140 130 150A 150 140 133 112 102 87 76 120 110 175A 175 159 150 127 115 97 85 100 90 200A 200 187 176 148 134 113 99 80 70 60 225A 220 199 187 157 141 119 103 50 40 250A 235 214 202 172 157 134 118 30 20 10 300A 150 150 150 150 150 150 135 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 350A 175 175 175 175 175 163 141 Ambient Temperature C 400A 200 200 200 200 200 191 167 320 310 500A 250 250 250 250 238 199 172 300A 300 290 600A 300 300 300 268 242 204 280 177 350A 270 260 250 400A Max Recommended 240 230 Environmental All tests were performed on the left or right side of the metal bar as shown 220 500A 210 Temperature 200 in the pictures. A 50mm Cu wire was mounted at the mid hole (M8) as 190 600A Single ZCASE VS-006050 180 current feed. LF Europe Date: 14-Aug-2019 Status: C 170 160 2.1.4 Test Fixture and Assembly 150 140 130 120 110 100 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 Illustration 3 Test Fixture Of Single Zcase Mega Derating curves may change depending on the final condition of the application (terminals All tests have to be performed in the shown test fixtures unless not defined differently Zcase Mega Fixture Zcase Starter Fixture characteristics, wire size etc..). in the special part. All current tests of the ZCase shall be performed on the left or right side of the metal bar as shown in pictures above. A 50mm Cu wire shall be mounted at the mid hole Please ask Littelfuse for more information. (M8) of the metal bar as current feed. REV07272021 9 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 31 Max. Allowed Current Load A Max. Allowed Current Load A 16 12.5 30