Zhejiang Chifeng Electric Co., Ltd. is one of the leading manufacturers and suppliers of rt16-1 nt1 250a 690v resin fuse holder in China, also supports customized service. Welcome to wholesale bulk rt16-1 nt1 250a 690v resin fuse holder made in China here and get quotation from our factory. For price consultation, contact us.
Applied Range
High Quality Materlals
Red Copper Or Alloy Material
The base contacts are made of high-performance red copper or alloy, which can ensure the base's high conductivity, wear resistance, corrosion resistance and excellent mechanical strength.
Highly resilient steel springs maintain contact pressure during thermal cycling, preventing resistance drift.
Captive Spring Mechanisms
High Performance Resin
The fuse base is made of high-temperature-resistant resin, which has excellent mechanical strength, moisture resistance and combustion resistance, and can withstand harsh environments.
Product Details
Excellent Mechanical Strength
It can withstand physical impacts, vibrations,and mechanical stresses, ensuring that the base is not easily deformed or damaged during installation or operation.
Flame resistance
The material has self - extinguishing properties or a high flame - retardant rating, reducing the fire risk and enhancing overall safety.
Optimized Heat Dissipation Design
Combined with an open - type structure, it promotes heat dissipation, reduces temperature rise, and ensures reliable operation under high - current loads.
| Parameter | |
| Product name | RT16-1/NH1/NT1 |
| Type | NT/NH Series Fuse Holder |
| Test standards | IEC60269/GB13539 |
| Usage | Low Voltage |
| Rated voltage ue | 690V |
| Rated current | 250A |
| Rated breaking capacity | 120kA |
| Brand name | CHIFENG |
| Place of origin | China |
| Zhejiang | |
Professional Fuse Manufacture
35+ years professional and reliable fuse manufacture in China.
ISO 9001 certified factory with intellectualized and automated capabilities.
Complete test facilities with highly qualified experts.
| Module | Chifeng fuse Holder | Inferior fuse Holder | Performance impact |
| Fusant material | High-performance red copper/alloy (high conductivity, wear/corrosion resistance) | Low-grade brass/iron sheet (poor conductivity, easy oxidation/corrosion/wear) | Affect the fuse accuracy and reaction speed |
| Base body | High-temperature resistant resin (flame-retardant, self-extinguishing, moisture/combustion resistant) | Ordinary/recycled plastic (low melting point, no flame retardancy, easy deformation/melting) | Affect insulation and arc extinguishing ability |
| Filler quality | High-grade quartz silica,Filling tightly | Ordinary quartz sand or substitute, loosely filled | Affect the arc extinguishing speed |
| Electrode material | Silver-plated copper electrode,low contact resistance | Ordinary metal, easy to oxidize | Affect temperature rise and energy consumption |
| Spring material | Highly resilient steel springs (maintain contact pressure, prevent resistance drift) | Ordinary iron springs (poor elasticity, quick tension loss, causes poor contact) | prevent resistance drift |
| Performance index | Chifeng fuse Holder | Inferior fuse Holder | Potential risk |
| Current-time characteristic | Precise and stable, matching the overload characteristics of the equipment | High dispersibility and instability | Mis-protection or insufficient protection |
| Breaking capacity | High breaking capacity, strong current limiting characteristics | Insufficient breaking capacity, poor current limiting effect | The fault escalates, resulting in system power outage |
| Arc control | Rapid arc extinction (microsecond level) | Slow arc extinction (millisecond level) | Cause a fire or explosion |
| Aging characteristics | Good long-term stability | Severe characteristic drift | Reliability decreases over time of use |
| Consistency | The differences between products are small | Significant performance variation within the same batch | The protection effect is unpredictable |
Manufacturing Technique
laboratory
X-Ray Fluorescence Spectrometer for Sample Composition Analysis
Precision Copper Component Machining Line
Fully Automated Fusible Strip Production System
High-Purity Quartz Silica Refining and Precision Processing Line
Fully Automated Precision Electroplating System
High-Precision
Stamping Press
Automatic injection
molding machine
assembly section
Quality inspection area
Conclusion: The Strategic Value of PV Fuse Holders
PV Fuse Holders transcend conventional circuit protection by delivering triple-guaranteed security: system uptime (via microsecond fault response), longevity (through corrosion-resistant materials), and safety (with arc-suppression and fireproofing). As Zhejiang Galaxy emphasizes, these components are "mission-critical in preventing $100k+ inverter failures" . With solar deployments scaling to gigawatt levels, engineers prioritizing resilience will find advanced fuse holders indispensable for achieving zero-downtime solar ecosystems.
Design Notes: Technical specifications align with IEC/UL standards cited across manufacturers including Onccy , Mersen , Littelfuse , and Zhejiang Galaxy
obustness in Extreme Conditions
Temperature Resilience: Operates seamlessly across -55°C to +125°C (e.g., JULUN and SINOFUSE models), ensuring performance in desert heat or Arctic cold .
Vibration & Shock Resistance: Designed for automotive environments, with ceramic tubes and silver-plated contacts that withstand mechanical stress, chemical exposure, and high humidity .
Selective Coordination with Charging Systems
System Compatibility: Integrates with AC chargers (7–22 kW), DC fast chargers (50–350 kW), and CCS/Type 2 connectors to provide tailored protection without nuisance tripping .
Bolt-On & DIN-Rail Designs: Modular terminals (e.g., M6/M8 bolts) and tool-free installation reduce deployment time by 30% in charging stations and combiner boxes .
FAQ
Q:Do aM NH type fuses have to be marked with green color?
A:Yes, according to IEC 60269-2, the color of aM fuses should be green.
Q:Are dual-indicating NH fuses mandatory or optional?
A:Dual indicator system is optional for NH fuse.
Q:What does NH mean?
A:NH is the German abbreviation, N means low pressure, H means high breaking capacity.
