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EN60204 and twin ferrules

Dave in the shed

Hi All,

EN60204 states: "The connection of two or more conductors to one terminal is permitted only in those cases where the terminal is designed for that purpose." Does anybody know whether this prohibits the use of standard twin ferrules (where two wires are crimped into a single ferrule) or whether the assembly of two wires and a ferrule is somehow considered to be a single conductor in the eyes of the standard?

Twin ferrules seem to be commonly used in machine building, often with claims of compliance with 60204. I was expecting to find some easily accessible guidance/knowledge/definitions regarding this situation but my web trawl hasn't found much.

Any wisdom will be gratefully received. Thanks.

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  • 0

    Dave in the shed,

    I dont think you will get a definitive clarification etc. It is like thousands of other regs and standard items where it is down to one's interpretation. I think everyone on this thread is interpretating EN60204 and connections into terminals the exact same. Like you meeting an over zealous QA inspector that indicates otherwise is in my opinion reading the satement wrong. Two conductors are terminated correctly in the twin ferrule, and to comply only one "Conductor" the pin of the cable lug or twin ferrule is clamped in the terminal, the satement is about the terminal.

    GTB 

Reply
  • 0

    Dave in the shed,

    I dont think you will get a definitive clarification etc. It is like thousands of other regs and standard items where it is down to one's interpretation. I think everyone on this thread is interpretating EN60204 and connections into terminals the exact same. Like you meeting an over zealous QA inspector that indicates otherwise is in my opinion reading the satement wrong. Two conductors are terminated correctly in the twin ferrule, and to comply only one "Conductor" the pin of the cable lug or twin ferrule is clamped in the terminal, the satement is about the terminal.

    GTB 

Children
  • 0 in reply to GTB

    Thanks GTB - nicely summarised.

  • 0 in reply to GTB
    GTB said:
    I dont think you will get a definitive clarification etc. It is like thousands of other regs and standard items where it is down to one's interpretation.

    Agreed. Although we can submit a comment or query, with suggested changes (see post in response below).

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