{"id":4291,"date":"2025-10-21T17:04:47","date_gmt":"2025-10-21T17:04:47","guid":{"rendered":"https:\/\/1clickrepair.in\/ESS\/?post_type=product&#038;p=4291"},"modified":"2026-10-27T04:42:11","modified_gmt":"2026-10-27T04:42:11","slug":"mega-fuse-holder-4-way-midi-fuse-block-automotive-fuse-box","status":"publish","type":"product","link":"https:\/\/essfuse.com\/en_au\/product\/mega-fuse-holder-4-way-midi-fuse-block-automotive-fuse-box\/","title":{"rendered":"Mega Fuse Holder &#038; 4 Way Midi Fuse Block | Automotive Fuse Box"},"content":{"rendered":"<div>\n<p>GFEV\u2011B300EH 1\u2011way mega &amp; 4\u2011way midi fuse block is a 5\u2011way modular automotive fuse block developed by GFEV. It integrates one MEGA main\u2011circuit position and four MIDI branch\u2011circuit positions inside one compact unit. Constructed with high\u2011quality PA66 housing and heavy\u2011duty brass terminals, this power distribution module provides stable over\u2011current and short\u2011circuit protection for automobiles, RVs, electric vehicles, control boxes and modified vehicles. The main circuit adopts M8 studs for MEGA bolt\u2011down fuses, while four branch circuits use M5 studs for MIDI bolt\u2011down fuses. This mixed\u2011circuit design separates high\u2011current main input and multi\u2011channel branch outputs, ideal for vehicle power refit, dual\u2011battery systems and on\u2011board control cabinet wiring.<\/p>\n<h2>Core Features<\/h2>\n<ul>\n<li>Mixed\u2011circuit layout: 1 MEGA high\u2011current main input plus 4 MIDI branch outputs within single housing<\/li>\n<li>Bolt\u2011on M8 &amp; M5 stud construction, anti\u2011vibration performance adapts to vehicle vibration environment<\/li>\n<li>PA66 robust housing delivers excellent mechanical strength and insulation performance for automotive installation<\/li>\n<li>Solid brass terminals maintain low contact resistance and guarantee stable large\u2011current operation<\/li>\n<li>Modular compact structure, saves installation space inside vehicle cabins and control boxes<\/li>\n<li>Realize independent protection for main power loop and multiple branch circuits for modified\u2011car projects<\/li>\n<li>Note: Please select proper MEGA \/ MIDI fuse ampere rating based on your actual system load condition.<\/li>\n<\/ul>\n<h2>Key Specifications<\/h2>\n<table style=\"border: 1px solid #000; border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #000; padding: 9px;\">Item<\/th>\n<th style=\"border: 1px solid #000; padding: 9px;\">Parameter<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #000; padding: 9px;\">Model<\/td>\n<td style=\"border: 1px solid #000; padding: 9px;\">GFEV\u2011B300EH<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 9px;\">Total Ways<\/td>\n<td style=\"border: 1px solid #000; padding: 9px;\">5\u2011Way (1\u00d7MEGA Main + 4\u00d7MIDI Branch)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 9px;\">Main Circuit (MEGA Fuse)<\/td>\n<td style=\"border: 1px solid #000; padding: 9px;\">30A\u2011650A,12V\u201180V DC, M8 Stud<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 9px;\">Branch Circuit (MIDI Fuse)<\/td>\n<td style=\"border: 1px solid #000; padding: 9px;\">30A\u2011200A,12V\u201158V DC, M5 Stud<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 9px;\">Housing Material<\/td>\n<td style=\"border: 1px solid #000; padding: 9px;\">PA66 Engineering Plastic<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 9px;\">Conductive Terminal<\/td>\n<td style=\"border: 1px solid #000; padding: 9px;\">Brass Terminals<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 9px;\">Compatible Fuse Type<\/td>\n<td style=\"border: 1px solid #000; padding: 9px;\">MEGA Bolt\u2011Down Fuse, MIDI Bolt\u2011Down Fuse<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 9px;\">Typical Application<\/td>\n<td style=\"border: 1px solid #000; padding: 9px;\">Automobiles, RVs, EVs, Control Boxes, Modified Vehicles<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Application Scenarios<\/h2>\n<ul>\n<li>Passenger automobiles, modified vehicles and high\u2011power audio refit projects<\/li>\n<li>RV, camper, caravan and dual\u2011battery power distribution systems<\/li>\n<li>Electric vehicles and hybrid vehicle auxiliary circuit protection<\/li>\n<li>On\u2011board electrical control boxes and mobile equipment power units<\/li>\n<li>Off\u2011road vehicles, light commercial vehicle DC circuit protection<\/li>\n<\/ul>\n<p>Match this gfev\u2011b300eh fuse block with our <a href=\"https:\/\/essfuse.com\/en_au\/product-category\/automobile-fuse\/bolt-down-fuses\/\">MEGA &amp; MIDI bolt\u2011down fuses<\/a> to complete main\u2011branch mixed power\u2011distribution protection solution.<\/p>\n<h2>Installation &amp; Safety Instructions<\/h2>\n<ul>\n<li>Disconnect vehicle main DC power supply before fuse installation or replacement to prevent short\u2011circuit risk.<\/li>\n<li>Follow recommended tightening torque for M5 \/ M8 studs; over\u2011torque may crack PA66 housing or damage screw threads.<\/li>\n<li>Select MEGA main\u2011circuit fuse with ampere rating higher than total system load current.<\/li>\n<li>Each MIDI branch fuse shall match actual load current of its corresponding branch loop.<\/li>\n<li>For engine\u2011bay installation, add extra waterproof housing if exposed to long\u2011term water splash environment.<\/li>\n<li>Regularly check stud tightness for vibration\u2011intensive vehicle working conditions.<\/li>\n<li>Custom modification is available for terminal adjustment, mounting\u2011hole modification and sample prototyping per customer drawing.<\/li>\n<\/ul>\n<h2>FAQ<\/h2>\n<p><strong>Q: What fuses match GFEV\u2011B300EH?<\/strong><br \/>\nA: The main circuit works with MEGA bolt\u2011down fuses (M8 stud). Four branch circuits are designed for MIDI bolt\u2011down fuses (M5 stud). Compatible fuses can be found at <a href=\"https:\/\/essfuse.com\/en_au\/product-category\/automobile-fuse\/bolt-down-fuses\/\">bolt\u2011down fuses category page<\/a>.<\/p>\n<p><strong>Q: Can I install this fuse block inside the engine bay?<\/strong><br \/>\nA: It uses PA66 durable housing suitable for engine\u2011bay installation. Nevertheless, you should add extra waterproof housing if you expect long\u2011term direct water splash.<\/p>\n<p><strong>Q: How do I choose correct fuse amp values?<\/strong><br \/>\nA: The main\u2011circuit MEGA fuse must be higher than total load current. Each MIDI branch fuse should correspond to its individual branch load current.<\/p>\n<p><strong>Q: Do you accept custom modification for GFEV\u2011B300EH?<\/strong><br \/>\nA: Custom service is available. We support terminal adjustment, mounting\u2011hole modification and sample prototyping according to your drawing requirements.<\/p>\n<p><strong>Q: What torque should I apply for M5 and M8 studs?<\/strong><br \/>\nA: Please control tightening torque reasonably. Avoid over\u2011torque, otherwise you may crack PA66 housing or damage screw threads.<\/p>\n<p><strong>Q: What is housing material?<\/strong><br \/>\nA: The shell adopts PA66 engineering plastic, it meets general automotive mechanical and insulation requirements.<\/p>\n<h2>Request Quotation &amp; Technical Support<\/h2>\n<p>Please tell us quantity, installation environment and whether custom modification is required. Our engineering team can provide dimension drawing, bulk\u2011price quotation and component\u2011selection guidance for your mixed main\u2011branch vehicle power\u2011distribution projects.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<pre><code>GFEV\u2011B300EH 1\u2011Way Mega &amp; 4\u2011Way Midi Fuse Block,5\u2011way automotive fuse box with PA66 housing and brass terminals for auto,RV,EV power distribution.\r\n<\/code><\/pre>","protected":false},"featured_media":4074,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[151],"product_tag":[],"class_list":["post-4291","product","type-product","status-publish","has-post-thumbnail","product_cat-modular-automotive-fuse-holder","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/product\/4291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/comments?post=4291"}],"version-history":[{"count":3,"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/product\/4291\/revisions"}],"predecessor-version":[{"id":15666,"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/product\/4291\/revisions\/15666"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/media\/4074"}],"wp:attachment":[{"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/media?parent=4291"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/product_brand?post=4291"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/product_cat?post=4291"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/essfuse.com\/en_au\/wp-json\/wp\/v2\/product_tag?post=4291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}