HEV fuse designed for power battery protection

Product information of the HEV fuse

Application This HEV fuse is suitable for voltage up to 1000VDC,rated current range of 5A-800A,breaking capacity of AC100KA/DC30KA. As a comprehensive protection for vehicle battery,vehicle wiring system and inverter.The fuses conform to GB13539,IEC60269 and related standards of UL248-20、ISO8820 and JASO-D622.

Product type of the HEV fuse

This HEV fuse at voltage of 1000VDC,rated current range of 5A-80A,mounting bolt M8 recommended torque 11N·m,size dimension is HF1;Rated current range of 90A-150A,mounting bolt M8 recommended torque 11N·m,size dimension is HF2;Rated current range of 175A-325A,mounting bolt M10 recommended torque 20N·m,size dimension is HF3;Rated current range of 350A-500A,mounting bolt M10 recommended torque 20N·m,size dimension is HF4;Rated current range of 600A-800A,mounting bolt M12 recommended torque 28N·m,size dimension is HF5;

Dimension of the HEV fuse(mm)

HEV fuse dimension

Size code	A±2	B±1.5	C±1	D±1.5	E±1.5	F±1	G±0.5	H±0.2	J±1
HF1	124	25	78	100	109	9	18	4	13.5
HF2	117	33	78	93	100	9	22	5	12.5
HF3	139.5	38	83.5	99.5	120	10.5	25	6	20.7
HF4	146.5	50	89.5	106	126.5	10.5	38	6	20.7
HF5	197.5	63	89.5	123.5	162.5	13.5	50	10	33

Conditions of use

Normal use conditions and parameter correction

The fuses work normally under the following normal conditions without any additional correction.

When it exceeds the normal using conditions, some parameters or consultation may need to be corrected if they are within the allowable using conditions. If it is beyond the scope of allowable using conditions, you should consult our company, and carry out the work adaptability evaluation and test of the conditions.

It is recommended that the current value of long-term current shall not be greater than 80% of the rated current. For over-temperature use, please refer to the temperature evaluation curve above.

FAQ

Question:My battery product nominal current is 250A, and the pulse current is 380A. So how much of the fuse of the current is protected?

Answer:Generally, we use your pulse current as the basis for selection, and the 600A fuse is required.

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