I installed these on a 30 amp feed line to my intercooler pump - they got so hot the housing melted and deformed but the fuse stayed intact.https://www.ebay.com.au/itm/362821714325. I have since moved to this style and all good so far, wire sizes are correct and so are the connections, https://www.ebay.com.au/itm/ANS-40-A...Cclp%3A2334524