Zhejiang Hongman Electric Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of dc ev fuse link in China. We are committed to providing high quality customized products made in China with competitive price. Welcome to wholesale bulk cheap dc ev fuse link from our factory.
Product Introduction
HongMan HMEVR7 (750Vdc) and HMEVR10 (1000Vdc) series DC fuses are aR type semiconductor protection fuse links customized for new energy vehicle traction batteries, DC EV charging piles and power semiconductor components. Fully compliant with GB/T13539.4 and IEC 60269-4 standards, they deliver a rated breaking capacity up to 50kA, with complete current ratings from 2A to 400A, acting as core short-circuit protection components for vehicle-mounted energy storage circuits and high-power DC equipment. Constructed with customized high-strength ceramic housings and exclusive high-efficiency arc-extinguishing media, these fuses feature outstanding shock and vibration resistance to prevent accidental blowing during long cyclic start-stop operation of vehicles and charging stations. The precision-engineered melt suits continuous repetitive duty cycles. Cooperated with mature supporting protection logic of Knief Electric Fuse, the fuses detect DC short-circuit faults accurately and cut off circuits instantly to safeguard vehicle energy storage systems. As a universal Vehicle Storage Fuse, they are widely adopted for passenger car battery packs, commercial heavy-duty truck energy storage systems, public DC fast charging stations, photovoltaic energy storage converters and more.
Product Parameter
|
Executive Standard |
GB/T13539.4, IEC 60269-4 |
|
Protection Characteristic |
aR type dedicated semiconductor protection |
|
Rated Breaking Capacity |
50kA (unified for all ratings) |
|
Connection Structure |
Flat bolt connection structure |
|
Housing Material |
Customized high-strength ceramic |
|
Applicable Working Conditions |
New energy vehicle on-board, DC charging piles, photovoltaic energy storage and other scenarios with long-term cyclic duty |
|
Rated voltage |
750V/1000V |
|
Rated current |
2A-400A |

Product Qualification
1.High-strength anti-shock ceramic housing for superior durability & safety One-piece customized high-strength ceramic housing maintains structural integrity under bumpy driving conditions and continuous equipment vibration, eliminating cracking and damage risks to avoid premature fuse failure, perfectly matching long-term complex vehicle working environments.
2.Anti-maloperation melt design for cyclic energy storage operation Optimized melt structure withstands regular charging & discharging impulse currents without unnecessary blowing, only activating fast protection during short-circuit and overload faults to reduce equipment maintenance costs. Combined with proven DC protection solutions from Knief Electric Fuse, its protection performance stays stable consistently.
3.50kA ultra-high DC breaking capacity with excellent high-voltage arc extinction All models feature unified 50kA rated breaking capacity paired with proprietary arc-quenching filler. It extinguishes arcs rapidly under 750V / 1000V high DC voltage without arc flash or explosion, and can directly replace 700V DC Storage Fuse for various high-voltage energy storage equipment.
4.Standard aR semiconductor protection characteristic to protect precise power devices Professional aR characteristic curve enables ultra-fast interruption under heavy short-circuit current, cutting off faulty circuits within microseconds to protect delicate IGBTs, power diodes and other semiconductor modules from breakdown and permanent damage.
5.Full range of current ratings & universal installation compatibility HMEVR7 covers 2A~400A while HMEVR10 covers 35A~400A. Standard flat bolt terminals with unified mounting holes fit most regular fuse bases for easy replacement and assembly. As a versatile Vehicle Storage Fuse, it matches nearly all vehicle energy storage and EV charging pile equipment.
6.Wide temperature & environmental adaptability with extended service life Special sealed manufacturing process resists extreme temperature, humidity and dust in automotive environments. Its performance decays slowly under long-term repeated start-stop cycles, delivering stable operation for EV battery packs and charging piles year-round.

Production Process & Quality Control System




Packaging, Shipping & After-sales Service

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