Zhejiang Hongman Electric Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of nh2 fuse link in China. We are committed to providing high quality customized products made in China with competitive price. Welcome to wholesale bulk cheap nh2 fuse link from our factory.
Product Introduction
The NH2 Fuse Link is user-friendly in installation and highly robust in heavy-current operation, making it ideal for solar energy contractors and electrical panel manufacturers looking to optimize circuit safety and operational stability for high-power new energy systems. In addition, it features a variety of advanced and state-of-the-art features, including ultra-fast arc quenching system, heat-resistant integrated ceramic structure and precisely calibrated overcurrent protection design, which help ensure unparalleled operational stability and reliable fault isolation for high-load power circuits.
Product Parameter
|
Item |
Specification |
|
Model |
NH2 Single Indicator Ceramic HRC Knife Blade Fuse Link |
|
Utilization Category |
gG (Overload & short-circuit dual protection for heavy cables, PV inverters & main switchgear) |
|
Rated Voltage |
AC 500V / AC 690V; DC 440V |
|
Rated Breaking Capacity |
AC500V: 120kA; AC690V: 50kA |
|
Current Range |
80A ~ 400A (80/100/160/250/315/355/400A) |
|
Housing Material |
Thick integrated high-temperature flame retardant ceramic |
|
Arc Extinguishing Media |
High-purity quartz sand (SiO₂ ≥99%) |
|
Contact Material |
Reinforced thick copper with double tin plating, anti-oxidation & low temperature rise |
|
Indicator |
Front single pop-up red mark, exposed once melted |
|
Compliance Standard |
IEC/HD 60269-2, DIN43620, GB13539.1 |
|
Certificates |
CE, TUV, CCC, ISO9001, RoHS |
|
Matching Accessory |
Special NH2 heavy-duty knife fuse base |
|
Application |
Centralized PV power stations, grid solar inverters, large low-voltage main cabinets, heavy motors & frequency converters |
Product Qualification
Shock-Resistant High-Density Ceramic Body
The square ceramic housing is formed via 1300℃ integrated high-density sintering, passing 500 cycles of -30℃~+80℃ temperature alternating shock test without cracking or insulation degradation. It stably withstands long-term high heat, damp and dust conditions of outdoor PV power plants.
Specially tailored for new energy scenarios, the 400A NH2 Fuse Link maintains stable current transmission and low temperature rise during long-duration full-load operation, perfectly adapting to high-power industrial power distribution. Designed as a professional NH2 fuse link for solar PV inverter, it effectively resists instantaneous surge currents generated during inverter startup and operation, preventing core equipment damage. Manufactured with strict IEC and DIN industrial standards, this premium NH2 Fuse delivers consistent and accurate short-circuit and overload protection. With excellent anti-aging and anti-arc performance, the 400A NH2 Fuse Link serves as a critical safety barrier, greatly improving the operational reliability and service life of solar power generation and industrial inverter systems.
Production Process & Quality Control System
Ceramic Shell Forming The ceramic body is formed through high-temperature sintering to deliver reliable insulation and explosion-proof performance.
Copper Contact Machining Integrally stamped thickened solid copper blades are electroplated with copper-tin alloy for anti-oxidation, effectively reducing contact resistance.
Fuse Element Assembly Precision fuse strips are fitted with high-purity quartz sand (99% silicon content) to achieve rapid arc extinction.
Finished Product Testing Every single unit undergoes individual testing for breaking capacity, temperature rise and overload fusing performance.
Aging Sampling Inspection Long-term operation under rated current is simulated to eliminate potential overheating risks.
Full-process traceable quality control ensures consistent performance of every fuse link.
Packaging, Shipping & After-sales Service
FAQ
Q1: Can NH2 Fuse Link 400A NH2 fuse link for solar PV inverter work on both AC inverter and DC energy storage circuits?
A1: Yes. It supports AC500/690V PV loops and DC440 battery systems. Its high breaking capacity suppresses PV startup surges to avoid nuisance tripping, providing reliable short-circuit protection for large energy storage clusters.
Q2: Does the tin-plated copper blade resist coastal salt mist corrosion?
A2: Double thick tin plating enables 500h neutral salt fog resistance. For seaside PV stations, clean terminals every 6 months to extend service life.
Q3: Can customers purchase only fuse links without matching NH2 bases?
A3: Yes, split supply is available. Clients with existing NH2 base stock can order fuses alone to cut spare part costs.
Hot Tags: nh2 fuse link, China nh2 fuse link manufacturers, suppliers
