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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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  • I wonder where the datasheet is and the 4th spade pin. Must be a hidden chassis gnd thread underneath – Sunnyskyguy EE75 Jun 29 at 23:07
  • 1
    @SunnyskyguyEE75 the 4th pin is just visible - the end just shows clear of the middle one... – Solar Mike Jun 30 at 4:21
  • There are only 4 pins and no other threads – Mark Tickner Jun 30 at 11:57
2

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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  • So 2 is hidden. Coil -. – Sunnyskyguy EE75 Jun 29 at 23:11
  • Thanks, I came across this myself but wanted to double check – Mark Tickner Jun 30 at 11:58

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