690V High-Speed Semiconductor Protection Fuse

Galaxy Fuse (Yinrong) is a professional manufacturer of the 690V High-Speed Semiconductor Protection Fuse, a high-speed square body fuse series dedicated to protecting AC 690V power conversion equipment including inverters, variable frequency drives, UPS systems, and charging infrastructure. Engineered as an aR class ultra-rapid fuse, this series provides both reliable overcurrent and short-circuit protection under the most demanding industrial conditions, where system uptime and component safety are paramount.

The 690V High-Speed Semiconductor Protection Fuse covers a continuous current spectrum from 200A to 800A, accommodating a diverse range of high-power stages in industrial equipment and renewable energy systems. With its fast-acting semiconductor protection design, this rectifier fuse ensures extremely rapid response to fault currents, minimizing energy let-through and significantly reducing thermal and mechanical stress on sensitive IGBTs, thyristors, and power diodes. Its outstanding 200kA breaking capacity at 690V AC—one of the highest in its class—guarantees safe and reliable interruption even under severe short-circuit events, providing an exceptional safety margin for system designers and electrical engineers.

This product line strictly conforms to both the international IEC60269-4 and the Chinese GB/T13539.4 standards, and carries CE certification for European market acceptance. The series is available in multiple ampere ratings with clearly specified pre-arcing and total clearing I²t values, enabling precise protection coordination with upstream and downstream protection devices. Each rating is supported by comprehensive technical documentation including time-current characteristics and current-limiting curves, empowering engineers to achieve selective protection schemes with confidence while reducing nuisance tripping.

Beyond its technical specifications, the 690V High-Speed Semiconductor Protection Fuse is built with robust construction featuring M12 stud terminals for secure, low-resistance connections and simplified field installation. Yinrong provides complete fuse selection guides and derating curves for altitude and ambient temperature variations, facilitating accurate system design across diverse operating environments. Each production lot undergoes rigorous quality assurance—including element precision etching, homogeneous arc-quenching media filling, and comprehensive factory testing—backed by our ISO 9001:2015-certified manufacturing facility and extensive field experience in metallurgy, wind power, rail transit, and energy storage applications. Choosing the 690V High-Speed Semiconductor Protection Fuse means prioritizing system safety, protection coordination, and long-term operational reliability.

Size(mm)

Parameters

Approvals＆Standards

• GB/T13539.4

• IEC60269-4

Class of Operation

• gR

• aR

Features＆Benefits

• Industry---leading 200kA interrupting capacity

• Precision---characterized I²t values for selective coordination

• Wide current selection (200A~800A)

• M12 stud terminal design for secure connections

• Comprehensive technical documentation and derating support

Applications

• High---power industrial drives and VFDs

• Wind turbine power converters

• Metallurgical rolling mill rectifiers

• EV charging infrastructure

• Large---scale UPS and backup power systems

Country of Origin

• Peoples’s Republic of China

Conventional Fusing and Non-Fusing