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[Solved] Designating Relay Contacts: Identifying 30, 85, 86, 87, 87a on Attached Relay Model

mbb94 13476 10
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Can I assign the standard terminal numbers 30, 85, 86, 87, and 87a to this relay?

You cannot label this relay as 30/85/86/87/87a because the pictured part is not a changeover relay with an NC contact; it has two coil pins and four contact pins arranged as two normally open pairs, so it will not fit a diagram that needs NC contacts [#17022955] [#17022952] [#17023783] The two single pins on one side are the relay coil, and the other four are the switching contacts [#17022955] [#17022961] The exact numbering cannot be given without the specific relay pattern or datasheet [#17022961] You can verify the coil by measuring resistance between the two single pins, and confirm the contact pairs by measurement [#17022961]
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  • #1 17022878
    mbb94
    Level 9  
    Posts: 14
    Rate: 2
    Hello, I have a relay like the attachment. However, I need to mark his contacts (30, 85, 86, 87, 87a). Please, tell me - can I say in this relay?
    Attachments:
    • Designating Relay Contacts: Identifying 30, 85, 86, 87, 87a on Attached Relay Model 20180208_180849.jpg (2 MB) You must be logged in to download this attachment.
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  • #3 17022920
    mbb94
    Level 9  
    Posts: 14
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    No where But I will tell you honestly that due to my ignorance of electronics, and thus the lack of knowledge on this subject, I cannot transfer information from your link to my needs. The relay from the link you gave has 5 legs, mine is 6. If I had 5 because of what you sent me I would have known, but at 6 I am at the starting point again.
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    #5 17022952
    itadek
    Level 23  
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    I'm afraid that my friend "MBB94" has the mark of the normally open and normally closed relay and in the picture there is a 2 x normally open relay and it will not fit
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    #6 17022955
    398216 Usunięty
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    Two separate contacts on the left (in the picture) are powering the relay coil. The other four are make contacts - in pairs - the pair closer to the center are moving contacts, distal / extreme fixed. On the one hand, you have two contacts (movable and fixed) of one pair, and on the other, a similar pair to switch on the second circuit. What else do you want to know?
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    #7 17022961
    kokapetyl
    Level 43  
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    mbb94 wrote:
    However, I need to mark his contacts (30, 85, 86, 87, 87a).

    This numbering colleague took from a pattern, we do not know from which and we can not answer this question without knowing this pattern.
    These two single contacts are probably a relay coil (between them should be some resistance, to measure with a device)
    The other four contacts are from the contacts of the relay, with which it switches on, it can also be confirmed by measurement.
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    #8 17022976
    398216 Usunięty
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    This is:
    Designating Relay Contacts: Identifying 30, 85, 86, 87, 87a on Attached Relay Model

    Added after 1 [minutes]:

    kokapetyl wrote:
    This numbering colleague took from a pattern, we do not know from which and we can not answer this question without knowing this pattern.
    I think so exactly. But as the diagram has, the above picture with the description should help.
  • #9 17022991
    mbb94
    Level 9  
    Posts: 14
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    Yes, I have a diagram for which I need this relay. That's him: Designating Relay Contacts: Identifying 30, 85, 86, 87, 87a on Attached Relay Model
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    #10 17023783
    itadek
    Level 23  
    Posts: 827
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    Well, the diagram shows that we must have a relay with NC contacts, so the one in the picture will not come
  • #11 17023794
    mbb94
    Level 9  
    Posts: 14
    Rate: 2
    Ok thank you for help. All clear :)
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Topic summary

LABEL_AI_GENERATED
The discussion revolves around identifying the relay contacts (30, 85, 86, 87, 87a) on a specific relay model. The original poster struggles to interpret the provided datasheets due to differences in the number of legs (6 vs. 5) and seeks clarification on the relay's configuration. Several responses clarify that the relay has two contacts for the coil and four make contacts, with some participants noting the necessity of having normally closed (NC) contacts for the intended application. A diagram is shared to assist in understanding the relay's layout, and it is concluded that the relay in question may not meet the required specifications.
AI summary based on the discussion. May contain errors.
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