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I have the following relay. The pins are numbered 1, 2, 3 and 5, rather than the more usual 85, 86, 30 and 87.

I would like the following confirmed:

  • 1 = 85
  • 2 = 86
  • 3 = 30
  • 5 = 87

Thanks

Relay

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3
  • I wonder where the datasheet is and the 4th spade pin. Must be a hidden chassis gnd thread underneath
    – Tony Stewart Sunnyskyguy EE75
    Jun 29 '19 at 23:07
  • 1
    @SunnyskyguyEE75 the 4th pin is just visible - the end just shows clear of the middle one...
    – Solar Mike
    Jun 30 '19 at 4:21
  • There are only 4 pins and no other threads
    – Mark Tickner
    Jun 30 '19 at 11:57
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The numbering system is given in DIN 72552.

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  • 1 = 85 (can probably be swapped with 86)
  • 2 = 86

Since it's just a normally open contact ...

  • 3 = 30 I would call this 87 as it is the 'hinge'/common.
  • 5 = 87 I would call this 87b.
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