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Re: 3 Questions on Mechanical Relays
Posted to Technical Theory Forum on 7/9/2023 20 Replies

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G'day Dave, you'd be talking about change over relays (5 pins). 87B and 30 are NC, 87 and 30 are NO. As you would be aware 5 pin relays are also available with two 87 pins.

Like George said, A type... Login to read more.

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