OEM NT00 Fuse Power Protection Is Efficient And Safe Supplier, Factory
Fuse is divided into six sizes according to the size of fuse tube.Each size has corresponding rated current range.Refer to main technical parameters for rated current level of fuse of various sizes.The fuse can be equipped with an impactor according to the user’s requirements, and the impactor is generally located directly above the fuse contact.
The fuse is specifically designed for line overload and short-circuit protection within the distribution systems of industrial electrical equipment. It supports an AC rated frequency of 50Hz, with voltage ratings ranging from AC 690V to DC 250V-440V, and a rated current capacity up to 1250A.
Fuses are categorized into six distinct sizes based on the fuse tube dimensions. Each size is engineered to handle a specific rated current range, allowing users to accurately select the appropriate component based on their unique electrical requirements.
For enhanced safety and functionality, these fuses can be customized with strikers. Positioned typically above the fuse contacts, the striker provides vital over-current or short-circuit protection, ensuring optimal reliability and performance in demanding circuit applications.
Model Meaning
Normal Working Conditions
● Ambient Air Temperature
Maximum temperature should not exceed 40°C. The 24-hour average must stay below 35°C, and the annual average should be lower than this. Minimum ambient temperature is -5°C.
● Altitude
The installation site's altitude should not exceed 2000m above sea level for optimal performance.
● Atmospheric Conditions
Relative humidity should not exceed 50% at 40°C. Lower temperatures allow higher humidity (e.g., 90% at 20°C). Note: Avoid installation in areas with salt mist or abnormal industrial deposits.
● Voltage Limits
Maximum system voltage should not exceed 110% of the rated voltage. For 690V AC or 250V-440V DC units, the limit is 105% of the rated voltage.
Frequently Asked Questions
Q1: What is the maximum current rating supported by this fuse series?
A: This series supports a rated current of up to 1250A for industrial electrical equipment applications.
Q2: Can these fuses be used for DC circuit protection?
A: Yes, they are suitable for DC circuits with rated voltages ranging from 250V to 440V, as well as AC circuits up to 690V.
Q3: How do I choose the right fuse size for my system?
A: Fuses are divided into six sizes based on the tube dimensions. Each size corresponds to a specific current range; please refer to the technical parameter document for exact sizing.
Q4: Are there specific installation requirements regarding altitude?
A: Yes, for standard operation, the installation site altitude should not exceed 2000 meters.
Q5: What are the temperature limits for these fuses?
A: The fuses operate effectively between -5°C and 40°C, with a required 24-hour average temperature below 35°C.
Q6: Can these fuses be customized with additional safety components?
A: Yes, strikers can be added upon request to provide additional over-current or short-circuit protection and improve overall system safety.
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