Galaxy Fuse (Yinrong) is a premier domestic manufacturer of the ESS Energy Storage Square Body High Speed Fuse 500V, a product line dedicated to safeguarding DC busbars and semiconductor switches in modern power electronics. This series is engineered to handle the rigorous demands of both short-circuit and sustained overload events, providing reliable interruption in utility-scale and commercial energy systems.
The Energy Storage Square Body High Speed Fuse 500V DC offers a rated voltage of DC500V, and covers a continuous current spectrum from 100A to 630A. As an aR-class device, it delivers exceptionally low I²t let-through energy and robust current-limiting performance, which effectively reduces thermal and mechanical stress on IGBT modules and freewheeling diodes during fault conditions.
This product complies with multiple international and domestic standards, including IEC60269, DIN43653, and GB/T13539.4. Every rating in the series carries both CCC certification for Chinese market access and CE marking for European acceptance, enabling seamless integration into global projects. The compact square-body outline is optimized for direct busbar mounting, minimizing connection resistance and parasitic inductance-a key advantage for high-current DC applications.
Beyond standard configurations, Galaxy Fuse (Yinrong) offers numerous custom options for the Energy Storage Square Body High Speed Fuse 500V DC, such as various terminal platings, visual trip indicators, and auxiliary micro-switch assemblies. Each production batch undergoes strict in-process quality control-including precision element etching, uniform arc-quenching media filling, and 100% burn-in testing-backed by our ISO 9001:2015-certified facility and extensive field experience in renewable storage and EV infrastructure. Choosing this series means investing in proven reliability, full regulatory compliance, and a lasting technical partnership.
| Serial number | Rated Current A | Pre-arcing I²t A²s | Melting I²t A²s | Power dissipation W |
|---|---|---|---|---|
| 1 | 100 | 330 | 2200 | 20 |
| 2 | 125 | 600 | 3700 | 24 |
| 3 | 160 | 1050 | 7300 | 30 |
| 4 | 200 | 1900 | 13300 | 34 |
| 5 | 250 | 3500 | 24100 | 40 |
| 6 | 315 | 6500 | 44100 | 48 |
| 7 | 350 | 8800 | 59100 | 54 |
| 8 | 400 | 15400 | 98500 | 60 |
| 9 | 450 | 20300 | 138500 | 66 |
| 10 | 500 | 29400 | 186100 | 70 |
| 11 | 550 | 38100 | 231200 | 75 |
| 12 | 630 | 52100 | 319000 | 79 |
·GB/T13539.4
·IEC60269-4
·gR
·aR
·Dedicated DC bus protection
·Dual-voltage DC capability (500V )
·Busbar-friendly square body
·Wide ampacity coverage (100A-630A)
·CCC + CE dual certification
·Utility-scale battery storage
·Solar-plus-storage hybrid plants
·Railway signaling and auxiliary converters
·Electric truck and bus drivetrains
·Electrochemical rectifiers for hydrogen production
·Peoples’s Republic of China
| Rated Current(A) | Conventional Time(h) | Conventional Current | |
| “gR” | |||
| Inf | lf | ||
| ln≤63 | 1 | 1.13ln | 1.6ln |
| 63<In≤160 | 2 | ||
| 160<ln≤400 | 3 | ||
| 400<ln | 4 | ||
| Note:ln is the rated current of the fuse; lnf is the conventional non-fusing current; if is the conventional fusing current. | |||