Zhejiang Hongman Electric Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of ce certified nh3 fuse link with double indicator in China. We are committed to providing high quality customized products made in China with competitive price. Welcome to wholesale bulk cheap ce certified nh3 fuse link with double indicator from our factory.
Product Introduction
The CE Certified NH3 Fuse Link with Double Indicator boasts simple installation and ultra-stable heavy-load operation, making it ideal for industrial contractors and large energy storage integrators looking to elevate low-voltage system safety and operational reliability. In addition, it features a variety of advanced and state-of-the-art features, including dual synchronous pop-up fault indicators, high-strength explosion-proof ceramic housing and high-efficiency arc extinguishing technology, which help ensure unparalleled fault breaking performance and long-term operational stability for high-current power distribution systems.
Product Parameter
|
Item |
Specification |
|
Model |
NH3 Double Indicator Ceramic HRC Knife Blade Fuse Link |
|
Utilization Category |
gG (General dual protection for overload & short circuit of heavy cables and industrial switchgear) |
|
Rated Voltage |
AC 500V / AC 690V, DC440V |
|
Breaking Capacity |
AC500V: 120kA; AC690V: 50kA |
|
Available Current Range |
200A~630A(Complete specifications200A,315A,355A,400A,500A,630A) |
|
Housing Material |
Ultra-thick high temperature flame retardant integrated square ceramic insulated body |
|
Arc Extinguishing Medium |
High purity quartz sand (silicon content ≥99%) |
|
Contact Material |
Reinforced thick tin-plated pure copper, anti-oxidation, low temperature rise under full load |
|
Indicator Feature |
Dual-end pop-up visual blown indicator, obvious red mark exposed after fusing |
|
Executive Standard |
IEC/HD 60269-2, DIN43620, VDE0636 |
|
Certifications |
CE, CCC, TUV, ISO9001, RoHS environmental certification |
|
Matching Base |
Special NH3 heavy-duty knife blade fuse base |
|
Application |
Large industrial low voltage switchgear, centralized PV energy storage stations, heavy-duty motors, large inverters, mining & steel power distribution equipment |
Product Advantage
Double independent pop-up indicator for barrier-free fault detection
Two separate fault indicators are installed on both terminals of the fuse body, which will not be blocked by cabinet doors, dense wiring and metal brackets. Maintenance workers can judge fuse burnout status from multiple viewing angles without any auxiliary testing tools.
Specially engineered for heavy-duty industrial scenarios, the HRC Fuse Link NH3 delivers superior short-circuit resistance and full-range gG overcurrent protection, perfectly catering for large-capacity transformers, heavy-duty frequency converters and centralized energy storage stations. As a high-spec 630A NH3 Fuse Link, it supports long-duration stable operation under maximum rated heavy current with extremely low temperature rise, effectively avoiding circuit overheating and equipment burnout risks. Adopting standard IEC and DIN industrial dimensions, this HRC Fuse Link NH3 supports direct one-to-one replacement of traditional fuses. Rigorously tested for harsh working conditions, the 630A NH3 Fuse Link provides reliable, high-capacity circuit protection, maximizing system security and minimizing downtime for large industrial power projects.
Production Process & Quality Control System
Packaging, Shipping & After-sales Service
Inner Packaging: Each fuse is individually packed in an anti-collision plastic case to prevent deformation of copper blade contacts during transportation.
Outer Packaging: Standard export cartons wrapped with moisture-proof films.
A full set of customs clearance documents is available, including CE certificates, test reports, commercial invoices and packing lists.
FAQ
Q1: What is the service life of NH3 Fuse Link under normal continuous rated current operation?
A1: When working within rated current at -25℃ ~ +70℃ dry ventilation environment, the service life can reach over 8 years. Regular inspection of dual indicators every 12 months is suggested for equipment running in outdoor dusty energy storage stations.
Q2: Are the tin-plated copper knife terminals resistant to salt mist corrosion for coastal industrial and PV projects?
A2: The copper blades adopt double thick tin plating process and pass 500-hour neutral salt fog test. For seaside high humidity and salt fog environments, cleaning terminal dust every six months can effectively extend service life.
Q3: After the NH3 fuse blows, can it be repaired and reused by refilling quartz sand and replacing melts?
A3: This fuse adopts fully sealed integrated structure. Once melted by overload or short circuit, internal melts and quartz sand lose protective performance. The whole fuse link must be replaced instead of repeated repair.
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