How to understand the fuse explosion-proof test?

Question: How can I better understand the explosion-proofing tests for my fuses?
Answer: Check the interrupting capacity parameter (Interrupting) in the specification sheet. It is an important parameter for safety regulation assessment. For example, if this parameter is defined as 1.5K/250VAC, it means that when a 250VAC voltage is applied across the two ends of the fuse and a 1.5K current is passed through, the fuse can safely break the circuit.

Example :

DigiKey Part Number F1710-ND
Manufacturer Littelfuse Inc.
Manufacturer Product Number 0216008.MXP
Detailed Description 8 A 250 V AC DC Fuse Cartridge, Ceramic Requires Holder 5mm x 20mm
Datasheet Datasheet

We can find the interrupting capacity parameter (Interrupting) of this product in the Datasheet

More Littelfuse circuit protection products

Littelfuse Circuit Protection products provide stable and reliable signal transmission guarantee for all kinds of precision electronic devices by virtue of their precise adjustment relationship with capacitance, dynamic resistance, etc. in terms of high-frequency characteristics, and their performance is excellent in the industry.

More Q&A on Littelfuse Circuit Protection Products Technology:

I. Questions Related to Component Characteristics

  1. What are the classifications of gas discharge tubes?

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  3. In Littelfuse circuit protection products, what kind of current is I in I²t?

  4. What are the differences between discharge tubes and metal oxide varistors?

II. Questions Related to Selection

  1. How to select metal oxide varistors for overvoltage protection?

  2. Do Littelfuse overcurrent protection fuses/circuit breakers have self-resetting function?

  3. The difference in the selection of overvoltage / overcurrent between AC and DC input terminals?

  4. When to Use PTC Resettable Fuses and Metal Fuses?

  5. What parameters differ between surface mount and through hole fuse selections?

  6. Under what general circumstances can AC components be directly used in DC circuits?

  7. Can the method of paralleling small-capacity fuses be used to achieve the purpose of fast fusing?

III. Questions Related to Applications

  1. What design requirements for overcurrent and overvoltage protection?

  2. In which fields are gas discharge tubes mainly applied? Do they have directionality?

  3. Are overcurrent and overvoltage protection for AC/DC power inputs used in charging piles?

  4. Can Littelfuse Circuit Protection Products Protect Against Overvoltage and Overcurrent?

  5. How to understand the fuse explosion-proof test?

  6. How to specifically know the time of time-delay fusing fuses?