Meaning of fuse current rating for fuse holder

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Discussion Overview

The discussion revolves around the meaning of the current rating description for a fuse holder, specifically the notation "1/10-30A" and its implications for fuse selection and usage. Participants explore the specifications and characteristics of fuses in relation to their holders, addressing both theoretical and practical aspects.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant inquires about the significance of the "1/10" in the current rating description for a fuse holder.
  • Another participant suggests that the rating indicates the holder's capability to accommodate fuses ranging from 0.1 to 30A.
  • A question is raised regarding the rationale for having a minimum current rating for fuses.
  • One participant speculates that the minimum rating prevents users from assuming the holder is only suitable for a 30A fuse.
  • A later reply clarifies that the individual fuses do not have a minimum current rating, indicating that the manufacturer produces fuses only within the 0.1 to 30A range.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the necessity of a minimum current rating for fuses, and there is no consensus on the implications of the "1/10" designation.

Contextual Notes

Some assumptions about the design and purpose of fuse ratings remain unaddressed, and the discussion does not resolve the broader implications of minimum current ratings in fuse applications.

JCMacaw
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Does anybody know what the 1/10 meaning is in the current rating description for a fuse holder?
1/10-30A 600V
For
No. of
Fuses
For
Fuse
Current, A
VoltageWire
Connection
Type
For
DIN Rail
Size, mm
Features
11/10-30600V DC/600V ACScrew Terminals35Covered Terminals
11/10-30600V DC/600V ACScrew Terminals35Covered Terminals, Blown-Fuse Indicator
 
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Should be capable of holding a 0.1-30A fuse. Example description below from https://www.elliottelectric.com/P/Item/EDN/BC6032SQ/

1/10-30A 600V 2P SCR. Conn. Class CC Fuse Block
Fuse Block, Standard; Thermoplastic Body; 2 Pole; Class CC Fuse; Fuse Voltage Rating 600 V; Fuse Current Rating 0.1 to 30 Ampere; Screw With Quick Connect Terminal; Clip Bright Tin Plated Bronze; Approval Ul, Csa 6225-01; Bussmann[R] Brand; BC Model
 
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... so why would a fuse have a minimum current rating?
 
Most likely so when someone uses it they do not think that is it ONLY good for the 30A fuse.
 
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Guineafowl said:
... so why would a fuse have a minimum current rating?

The individual fuse does not have a minimum current rating. This manufacturer only makes fuses to fit this holder in the range of 0.1 through 30 amps.

BoB
 
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