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Switch/Relay question

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Old Jul 12, 2020 | 09:58 AM
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Default Switch/Relay question

I am going to runt he electrical to power pumps for the DRM transmission and diff coolers. I am wondering if I can run 1 switch to power both relays since both pumps will be normally off and I would always run both pumps when I wanted to run them. Wiring and electrical are not my favorite so if I am way off base dont be shy to let me know.

On the relay most seem to have 5 pins with pin 87a normally powered with teh switch in the off position, then when you turn the switch on the power goes from 87a to 87. My question is, I dont believe I need something powered normally (87a) so I would assume I can just not hook anything up to that pin and then just hook my pump load up to 87 and when I flip the switch the pump does it job. What do you think?

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Old Jul 12, 2020 | 11:08 AM
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The circuit is 87 to 30. 30 is normally powered and the load goes to 87.

You can run multiple relays from the same switch by connecting the 86 terminals together and 87 terminals together.
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