SRTO packing seal fuse suitable for distribution lines of AC 50Hz, rated voltage AC 380V and rated current 1000A max.to be used as overload and short-circuit protection. For more details ,you can visit our website(www.sunzheng ) for a view. If you are interested in this item or other fuses ,please contact me , i will provide the suitable quality with the lowest price. Contact person: Miss Avaya lin