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A latching switch is a switch that maintains its state after being activated.[1] A push-to-make, push-to-break switch would therefore be a latching switch – each time you actuate it, whichever state the switch is left in will persist until the switch is actuated again.[2]

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  • ABB E256 latching relay
    ABB E256 latching relay
  • Moeller Z-S230 latching relay
    Moeller Z-S230 latching relay
  • wiring diagram of latching switch
    wiring diagram of latching switch
  • example of latching switch using GE PLS+ relay
    example of latching switch using GE PLS+ relay

See also

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References

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  1. ^ El-Bawab, T.S. (2008). Optical Switching. Springer US. p. 248. ISBN 978-0-387-29159-8. Retrieved 13 September 2018.
  2. ^ Sinclair, I. (2000). Sensors and Transducers. Elsevier Science. p. 258. ISBN 978-0-08-051699-8. Retrieved 13 September 2018.


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protective relays or safety relays. Latching relays require only a single pulse of control power to operate the switch persistently. Another pulse applied

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Flip-flop (electronics)

the same time should make the SR latch behave unpredictably. Wikimedia Commons has media related to Flip-flops. Latching relay Low power flip-flop Pulse

Thyristor

anode current has exceeded the latching current (IL). As long as the anode remains positively biased, it cannot be switched off unless the current drops

Bass pedals

non-latching switch depressed to provide sustain, and then released to end the sustained note, a bass pedal unit's electronic sustain is a latching switch