A fuse (fuse) is also called a current fuse or a fuse, and the IEC127 standard defines it as a "fuse-link". It is an electrical component installed in a circuit to ensure the safe operation of the circuit. A wire made of a silver-copper alloy with a relatively high resistivity and a low melting point is called a fuse. Fuses originally made of lead-antimony alloys have been phased out for safety reasons.
Classification of fuses:
Fuses are classified by type and can be divided into:
1. Current fuses (chip fuses, miniature fuses, insert fuses, tubular fuses, automotive fuses);
2. Thermal fuse (RH [block type], RP [resistance type], RY [metal shell]);
3. Self-recovery fuse (plug-in, lamination, patch).
Fuse_Fuse UL certification standard:
UL 248-1 general requirements apply to low-voltage fuse-links rated at 1000 V or less, AC and/or DC, with interrupting ratings up to 300 kA (200 kA in Mexico).
UL 248-14 Supplementary fuses apply to fuses rated 60 A or less for supplemental overcurrent protection only and not for branch circuit or equivalent applications. DC rating is optional.
UL 248-13 Semiconductor fuses apply to semiconductor fuses rated at 2000 V ac or less. DC rating is optional.
Fuse_Fuse UL certification test items:
Voltage drop test, temperature rise test, fusing characteristic test (overload test), breaking test, insulation resistance test
1. Send samples
2. Fill in the application form (applicant company name address product name address manufacturer company name address information corresponding to the platform)
3. Make a quotation and sign and seal the contract (pay first and then open the case to test the product)
4. Test 7 working days according to the time when the sample is sent
5. Issue a draft report to confirm that the information is correct
6. Issue a formal report
Thank you: 18122040311 (same as V)