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Low Voltage fuses

Low Voltage fuses

Low Voltage fuses

Dear friends,

Does anybody kbow what the standard to verify fuses interrupting capabilities is?

I mean, we alredy look at IEEE red book, violet book and nobody talk about low voltage fuses.

For medium voltage there are some other standards but, we are not fully sure if the procedure recommended to evaluate MV fuses is the same for LV ones.

Any suggestions will be welcome!!

RE: Low Voltage fuses


If you mean a device to control burning out of fuse link that there are manufactures which produce it for LV fuses.

For understanding of fuses interrupting characteristics you can see IEC standards (IEC 60269). There are gG and aM modification for power line and motor protection.

RE: Low Voltage fuses

Here are a couple standards that apply to low voltage fuses..   

 * ANSI/UL 248-1 and NMX-J-009/248/1-2000-ANCE, "Low-Voltage Fuses - Part 1: General Requirements"

    * ANSI/UL 248-2 and NMX-J-009/248/2-2000-ANCE, "Low-Voltage Fuses - Part 2: Class C Fuses"

    * ANSI/UL 248-3 and NMX-J-009/248/3-2000-ANCE, "Low-Voltage Fuses - Part 3: Class CA and CB Fuses"

    * ANSI/UL 248-4 and NMX-J-009/248/4-2000-ANCE, "Low-Voltage Fuses - Part 4: Class CC Fuses"

    * ANSI/UL 248-5 and NMX-J-009/248/5-2000-ANCE, "Low-Voltage Fuses - Part 5: Class G Fuses"

    * ANSI/UL 248-6 and NMX-J-009/248/6-2000-ANCE, "Low-Voltage Fuses - Part 6: Class H Nonrenewable Fuses"

    * ANSI/UL 248-7 and NMX-J-009/248/7-2000-ANCE, "Low-Voltage Fuses - Part 7: Renewable Fuses"

    * ANSI/UL 248-8 and NMX-J-009/248/8-2000-ANCE, "Low-Voltage Fuses - Part 8: Class J Fuses"

    * ANSI/UL 248-9 and NMX-J-009/248/9-2000-ANCE, "Low-Voltage Fuses - Part 9: Class K Fuses"

    * ANSI/UL 248-10 and NMX-J-009/248/10-2000-ANCE, "Low-Voltage Fuses - Part 10: Class L Fuses"

    * ANSI/UL 248-11 and NMX-J-009/248/11-2000-ANCE, "Low-Voltage Fuses - Part 11: Plug Fuses"

    * ANSI/UL 248-12 and NMX-J-009/248/12-2000-ANCE, "Low-Voltage Fuses - Part 12: Class R Fuses"

    * ANSI/UL 248-13 and NMX-J-009/248/13-2000-ANCE, "Low-Voltage Fuses - Part 13: Semiconductor Fuses"

    * ANSI/UL 248-14 and NMX-J-009/248/14-2000-ANCE, "Low-Voltage Fuses - Part 14: Supplemental Fuses"

    * ANSI/UL 248-15 and NMX-J-009/248/15-2000-ANCE, "Low-Voltage Fuses - Part 15: Class T Fuses"

    * ANSI/UL 248-16 and NMX-J-009/248/16-2000-ANCE, "Low-Voltage Fuses - Part 16: Test Limiters"

    UL Subject 248-18, "Outline of Investigation for Low-Voltage Fuses - Class CD Fuses"

    UL 275, "Automotive Glass-Tube Fuses"

    UL Subject 275A, "Outline of Investigation for Automotive Blade Type Fuses"

    ANSI/UL 347, "High Voltage Industrial Control Equipment"

    ANSI/IEEE C37.40 (1993), "Standard Service Conditions and Definitions for High-Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories"

    IEEE C37.41 (2000), "Standard Design Test for High-Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories"

    ANSI/IEEE C37.42 (1996), "Specification for High-Voltage Expulsion Type Distribution Class Fuses, Cutouts, Fuse Disconnecting Switches and Fuse Links (Replaces NEMA C37.42-1996)"

    ANSI/IEEE C37.46 (2000), "High Voltage Expulsion and Current-Limiting Type Power Class Fuses and Fuse Disconnecting Switches"

    ANSI/IEEE C37.47 (2000), "High Voltage Current-Limiting Type Distribution Class Fuses and Fuse Disconnecting Switches"

    ANSI/IEEE C37.48 (1997), "Guide for the Application, Operation, and Maintenance of High-Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories"

    ANSI/IEEE C37.53.1 (1996), "High Voltage Current-Limiting Motor-Starter Fuses - Conference Test Procedures"

    IEC 60269-2-1, Ed. 4, "Low-Voltage Fuses - Part 2-1: Supplementary Requirements for Fuses for Use by Authorized Persons (Fuses Mainly for Industrial Applications) - Sections I to VI: Examples of Standardized Fuses"

    IEC 60127-1, "Miniature Fuses" (general title)

    IEC 60127-1, "Part 1: Definitions for Miniature Fuses and General Requirements for Miniature Fuse-Links"

    IEC 60127-2, "Part 2: Cartridge Fuse-Links"

    IEC 60127-3, "Part 3: Sub-Miniature Fuse-Links"

    IEC 60127-4, "Part 4: Universal Modular Fuse-Links"

    IEC 60127-5, "Part 5: Guidelines for Quality Assessment of Miniature Fuse-Links"

RE: Low Voltage fuses

Not sure what you are trying to find out about lv fuses; but NEC 110.9 deals with code related issues related to fuses.  

A manufaturer of lv fuses is Cooper Bussmann, and they have some application guides that deal with lv fuses and their interrupting capabilities.  There is a guide called "SPD Selecting Protective Dvices".  I tried uploading it, but I have the feeling it was too big and the site did not like it; the answer to what you are looking for may be there.   

RE: Low Voltage fuses

Dear guys,

I want to say thank you for this information, we will look for them and try to go deeper inm our knowledge.

By the way,mcgvr, where are you from?, because you are refferring some mexican standards.

Best Regards

RE: Low Voltage fuses

I'm from the US..
That list came straight from the generic information on UL's online certification directory.

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