Bolt-down Fuses MEGA® FUSE RATED 32V Specifications Interrupting Rating: 2000A @ 32 VDC Voltage Rating: 32 VDC Operating Temperature Range: -40˚C to + 125˚C Housing: PPA (33%/35% GF) Terminals:Copper (Silver plated copper available) M6 or M8 bolts available Mounting Torque: 8-14 Nm M6 12-18 Nm M8 Complies with: ISO 8820-5 Ordering Information Part Number Package Size Plating Bolt Size Rating 0298xxx.ZXH 500 none M8 300 - 500 0298xxx.ZXEH 0298xxx.ZXB 0298xxx.ZXA 500 500 500 none Ag none M8 M8 M6 80 - 250 40 - 250 80 - 500 Time-Current Characteristics Description The MEGA® Fuse is designed for high current circuit protection up to 500A 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. % of Rating Opening Time Min / Max (s) 40-250 300-500 –/– 14,400 s / – 100 14,400 s / – –/– 135 120 s / 1800 s –/– 200 1 s / 15 s 1 s / 15 s 350 0.300 s / 5 s 0.500 s / 5 s 600 0.100 s / 1 s –/– 75 Ratings Part Number Current Rating Font Color Typ. Voltage Drop Cold Resistance I2t 0298040._1 40 A – 132 mV 2.510 mΩ – 0298060._1 60 A – 119 mV 1.504 mΩ – 0298080._ 80 A 87 mV 0.720 mΩ – 0298100._ 100 A 87 mV 0.562 mΩ 31100 A²s 0298125._ 125 A 80 mV 0.423 mΩ 57800 A²s 0298150._ 150 A 92 mV 0.352 mΩ 100000 A²s 0298175._ 175 A 86 mV 0.294 mΩ 168000 A²s 0298200._ 200 A 83 mV 0.257 mΩ 204000 A²s 0298225._ 225 A 82 mV 0.222 mΩ 257000 A²s 0298250._ 250 A 82 mV 0.201 mΩ 389000 A²s 0298300._ 2 300 A 74 mV** 0.167 mΩ – 0298350._2 350 A 68 mV** 0.138 mΩ – 0298400._2 400 A 64 mV** 0.126 mΩ – 0298450._ 2 450 A 60 mV** 0.112 mΩ – 0298500._2 500 A 58 mV** 0.092 mΩ – Note 1: Not mentioned in ISO standards Note 2: Short Circuit Protector only ** Voltage Drop measurements for short circuit protectors taken at 75% of rated current. © 2012 Littelfuse • Transportation Products Catalog www.littelfuse.com Bolt-down Fuses MEGA® FUSE RATED 32V Time-Current Characteristic Curves Dimensions Dimensions in mm 1.83 (.072 ) 300-500A Temperature Rerating Curve www.littelfuse.com © 2012 Littelfuse • Transportation Products Catalog