Shu Guang
Shu Guang
Precision-engineered High Voltage, Medium Voltage, and Specialized Fuse Solutions conforming to IEC, DIN, BS, and ANSI standards.
A comprehensive analysis of high rupturing capacity wedge-type fuse links, thermal dissipation kinetics, and arc quenching mechanisms in low to medium voltage power distribution networks.
In modern electrical grid architecture, particularly within British-standard distribution networks, feeder pillars, and underground distribution cabinets, the J Type Fuse Link stands as an irreplaceable safeguarding component. Designed under BS 88-2 / IEC 60269-2 parameters, J Type fuses utilize 82mm or 92mm slotted fixing centers (slotted wedge contacts) specifically structured to be bolted directly into fuse carriers or distribution busbars using insulated thumb-screws.
As a leading China OEM J Type Fuse Manufacturer, Wenzhou Shuguang Fuse Co., Ltd. integrates advanced metallurgical element shaping with ultra-pure chemically treated quartz sand (SiO2) arc-extinguishing media. This design ensures extremely low I²t let-through energy during severe short-circuit events, preventing thermal breakdown of upstream transformers, switchgear, and customer service lines.
Constructed with multi-waist pure silver (99.99%) fuse elements encapsulated in high-strength electrical porcelain tubes filled with high-purity silica sand, guaranteeing instantaneous extinction of fault arcs within milliseconds.
Engineered to withstand cyclic overloads, severe short-circuit electromagnetic stresses, and harsh environmental humidity without thermal fatigue or nuisance blowing during transient current surges.
Complete flexibility in terminal slot pitch (82mm / 92mm), current ratings (20A to 630A), voltage thresholds (415V/660V AC), and customized thermal trip indicators tailored for global utility operators.
Wenzhou Shuguang Fuse Co., Ltd. — Pioneers in Medium & High Voltage Electrical Safety Systems since 1992.
Established in 1992 (originally known as Yueqing Shuguang Fuse Factory), Wenzhou Shuguang Fuse Co., Ltd. is strategically situated in Yueqing, Zhejiang Province — widely celebrated as the Electrical Capital of China. Over three decades of focused industrial evolution, our facility has expanded into a high-technology power enterprise integrating advanced R&D, continuous automated production, precision quality testing, and international distribution.
Marketed globally under the esteemed "Shu Rong" brand name, our products are officially designated by the Ministry of Electric Power Industry for grid protection. Our high-voltage current-limiting fuses, capacitor protection fuses, drop-out fuse cutouts, and specialized J Type fuse links serve as critical infrastructure assets across utility grids, industrial plants, and renewable energy installations worldwide.
In-depth parameter comparison for OEM buyers, electrical design engineers, and substation procurement teams.
| Fuse Category / Product Line | Rated Voltage (Un) | Rated Current Range (In) | Interrupting Capacity (I1) | Standard Compliance | Primary Application Scenario |
|---|---|---|---|---|---|
| J Type Feeder Pillar Fuse Link | 415V / 660V AC | 20A - 630A | 80 kA at 415V | BS88-2, IEC 60269-2 | Distribution Feeder Pillars, Wedge Carriers |
| HV Current Limiting Fuse (XRNP) | 3.6kV - 40.5kV | 0.5A - 100A | 50 kA | IEC 60282-1, DIN 43625 | Voltage Transformer & Switchgear Protection |
| Oil-Immersed HV Transformer Fuse | 12kV - 24kV | 6.3A - 100A | 31.5 kA - 50 kA | IEC 60282-2, ANSI C37.42 | Submerged Oil Transformer Protection |
| EV High-Voltage DC Fuse | 500V - 1000V DC | 50A - 800A | 50 kA DC | ISO 8820, IEC 60269-6 | Electric Vehicle Battery Packs & Fast Chargers |
| Drop-Out Expulsion Fuse Cutout | 10kV - 38kV | 100A - 200A | 10 kA - 16 kA | ANSI C37.41 / C37.42 | Overhead Transmission Line Pole Transformers |
| Capacitor Protection Fuse | 6kV - 12kV | 10A - 200A | 63 kA | IEC 60549, GB/T 15166.5 | Shunt Power Capacitor Banks Protection |
Providing custom OEM manufacturing tailored to regional utility grid requirements across Southeast Asia, the Middle East, Africa, Europe, and South America.
Our complete range of high-voltage HRC fuses (XRNP, RN series) and polymeric drop-out porcelain fuse cutouts serve heavy industrial complexes, steel mills, mining operations, and regional grid operators.
By strictly enforcing ISO 9001:2000 quality standards, Shuguang Fuse guarantees that every OEM J Type Fuse and HV current-limiting link meets rigorous breaking capacity tests validated by national electric power research laboratories.
Validated by the Electric Power Research Institute, National High-Voltage Electrical Apparatus Quality Supervision & Inspection Center, and Xi'an High-Voltage Electrical Apparatus Research Institute.
Pioneering Next-Generation Smart Grid Protection, Eco-Friendly Extinguishing Media, and Ultra-Fast EV DC Fuses.
Integration of wireless temperature-monitoring micro-sensors directly within the fuse body, transmitting real-time thermal telemetry to SCADA utility systems before over-temperature degradation occurs.
Transitioning toward recyclable ceramic bodies, lead-free low-melting point alloys, and non-toxic arc extinction compounds aligned with global environmental decarbonization directives.
Engineering ultra-fast 1000V+ DC protection links engineered for megawatt-level EV supercharging hubs and energy storage systems (BESS) with response times under 2 milliseconds.
Explore our wide selection of DIN standard current limiting fuses, oil-immersed link cutouts, and low voltage components.
Expert insights on OEM customization, J Type fuse specifications, and global compliance for electrical engineers and buyers.
