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Are there ordinary delays and are they different from time delay relays? |
February 25, 2020 |
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An "ordinary" relay closes its contacts the instant the coil is energized (within a ms. or two). Time delay relays may be time delay close (tdc) or time delay open (tdo). A tdc relay closes its contacts a set time after the coil is energized; a tdo relay opens its contacts a set time after the coil is de-energized. In both cases the time delay is normally adjustable. This description applies to normally open contacts; of course if the contact is normally closed the action is reversed. |
February 27, 2020 |
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Thanks so much @Foxx |
February 28, 2020 |
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