GFEV(B300) MEGA-Anschraub-Sicherungshalter | 30–500 A, 12–500 V DC

GFEV(B300) MEGA Bolt‑On Fuse Holder | 30‑500A 12‑500V DC High‑Current Fuse Block

Many system integrators for new‑energy and communication hardware seek heavy‑duty bolt‑on fuse holders that endure high‑voltage DC working conditions. The GFEV(B300) MEGA Bolt‑On Fuse Holder perfectly matches GFEFUSE® ANL‑B series medium‑sized fork‑bolt fuses. In addition, we offer two base material options: PBT+GF15% or PPS, both reaching UL94V‑0 flame retardant grade, alongside a PC‑V0 transparent top cover. Importantly, this heavy‑duty block accepts 30‑500A current under 12‑500V DC systems. Therefore, installers widely deploy it for automotive wiring harnesses, new‑energy vehicle control cabinets, communication gear and battery protection circuits.

Related product links: Fuse Holders Category Page & ANL‑B Series Medium‑Sized Fork‑Bolt Fuse

Industry reference resource: IEC low‑voltage protective‑component specification library

Core Engineering Advantages

• Two‑Choice UL94V‑0 Flame‑Retardant Base: Specifically, buyers pick either PBT+GF15% or high‑grade PPS base for different thermal‑load requirements. Furthermore, the PC‑V0 top cover delivers visual inspection access for fuse status without disassembly.
• Heavy‑Duty Anti‑Vibration Fastening Kit: This assembly combines grade‑8.8 high‑strength screws with stainless‑steel nuts. Meanwhile, this hardware set resists rust and maintains stable clamping force under vehicle‑vibration environments.
• Broad DC Electrical Coverage: This holder handles 30‑500A and supports wide 12‑500V DC working range. Notably, designers must apply proper current‑voltage derating for continuous heavy‑load long‑term operation.
• Multi‑Sector Compatibility: Its mechanical outline fits automotive harness layouts, new‑energy control boxes, DC power equipment and communication‑device battery‑protection loops.
• Important Production Notice: Mould dimensions may change without advance notification. As a result, engineers should confirm official drawing files before mechanical design freeze.

GFEV(B300) Full Technical Specifications

Critical Installation & Derating Guidance

Do not run full‑rating load continuously without thermal validation. In particular, always select genuine ANL‑‑B series fork‑bolt fuses. For instance, mismatched third‑party fuses with inconsistent terminal geometry create local hot‑spots and bring potential safety hazards. Also, apply correct torque value on grade‑8.8 screws and stainless‑steel nuts; over‑torque will damage threads while insufficient torque triggers loose terminals under vibration. Even with high‑grade flame‑retardant housing, leave enough surrounding clearance for heat dissipation inside compact cabinets. These practical tips help technicians avoid common onsite failure modes.

Practical Deployment Use‑Cases

System integrators widely adopt GFEV(B300) MEGA fuse holder for heavy‑duty DC‑protection assignments. For example, it protects automotive wiring harness assemblies. Besides vehicle projects, it serves new‑energy‑vehicle control box internal circuits. Additionally, this unit works for DC power‑supply equipment, communication hardware and dedicated battery‑protection circuit modules.

Factory‑Backed Pre‑Sales & After‑Sales Support

Dongguan GongFu Electronics (EssFuse / GFEFUSE) manufactures this MEGA‑series bolt‑on fuse hardware. We complete dimensional sampling inspection plus electrical‑performance testing for every batch before shipment. Also, we supply physical evaluation samples so customers can run bench‑test and mechanical‑layout validation. Furthermore, our engineering team accepts OEM and ODM custom modification for large‑volume orders. Contact our sales team to confirm drawings or obtain application‑oriented technical advice.

👉 Request quotation and download GFEV(B300) official dimension datasheet PDF

Technical FAQ for Installers & Design Engineers

1: Which fuse fits GFEV(B300) MEGA bolt‑on fuse holder?
A: We build this holder exclusively for GFEFUSE ANL‑B series medium‑sized fork‑bolt automotive fuses. Non‑compatible replacement fuses can trigger dangerous local overheating.

2: What base‑material options can users choose?
A: Buyers may select either PBT+GF15% or high‑performance PPS base; both options comply with UL94V‑0 flammability classification.

3: What applications suit GFEV(B300) the most?
A: It fits automotive wiring harness, new‑energy‑vehicle control boxes, DC power units, communication‑equipment hardware and battery‑protection‑loop projects within 12‑500V DC systems.