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Can a relay be on for 16 hours continuously?



The 2019 Stack Overflow Developer Survey Results Are In
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
Congratulation Joan for 50k!16 channel relay for RPiSimple Relay ControlWhat things I can use for turning on a relay?3V3 enough for a 5V relay?Relay boards that can handle 20V 20A DCCircuit complete near high voltage machineComponents for relay setup with Raspberry PiRaspi's USB and Ethernet occasionally shut down when connecting relay boardOpen/Close Sliding Gate Using Raspberry Pi and PythonDetecting electricity via a relay board



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A part of my engineering project involves a L.E.D tubelight staying on for 16 hours continuously. I am connecting the light to a relay module. Is it ok, if the relay stays on for so long? I mean, is it designed to sustain for such a huge period of time?










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    1















    A part of my engineering project involves a L.E.D tubelight staying on for 16 hours continuously. I am connecting the light to a relay module. Is it ok, if the relay stays on for so long? I mean, is it designed to sustain for such a huge period of time?










    share|improve this question
























      1












      1








      1








      A part of my engineering project involves a L.E.D tubelight staying on for 16 hours continuously. I am connecting the light to a relay module. Is it ok, if the relay stays on for so long? I mean, is it designed to sustain for such a huge period of time?










      share|improve this question














      A part of my engineering project involves a L.E.D tubelight staying on for 16 hours continuously. I am connecting the light to a relay module. Is it ok, if the relay stays on for so long? I mean, is it designed to sustain for such a huge period of time?







      electronics relay






      share|improve this question













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      share|improve this question










      asked 11 hours ago









      Aditya RaghuAditya Raghu

      142




      142




















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          The first stop to answer such questions should be the datasheet of the part in question. This is where the manufacturer lists the operating conditions of the device.



          That aside it is usually safe to have a relay active for longer periods of time, assuming you're within the operational range of current and voltage (again, as laid out in the datasheet).



          Wear and tear of an electromechanical relay is usually due to switching under load, i.e. with a voltage applied to the terminals, not being permanently on or off. For more on the issue of contact degradation see here https://en.wikipedia.org/wiki/Relay#Arcing (which I won't make part of this answer as it does not address the question).






          share|improve this answer























          • Thank you so much for your help @Ghanima. Btw does a timer relay also have the same working?

            – Aditya Raghu
            10 hours ago


















          1














          To add to @Ghanima's excellent answer, you may also wish to consider a latching relay. Briefly, a latching relay has two stable states (i.e. it is a bistable device, similar to a flip-flop). This means that the relay can be latched into an OPEN or CLOSED state, and it will remain in that state until commanded to change by the input. This avoids the necessity of supplying input voltage and current to maintain (for example) a NORMALLY OPEN relay in a CLOSED state for an extended period of time. Latching relays typically find application in situations similar to the one you've described in your question - where they must be in an OPEN or CLOSED state for extended periods of time.






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            2 Answers
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            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            3














            The first stop to answer such questions should be the datasheet of the part in question. This is where the manufacturer lists the operating conditions of the device.



            That aside it is usually safe to have a relay active for longer periods of time, assuming you're within the operational range of current and voltage (again, as laid out in the datasheet).



            Wear and tear of an electromechanical relay is usually due to switching under load, i.e. with a voltage applied to the terminals, not being permanently on or off. For more on the issue of contact degradation see here https://en.wikipedia.org/wiki/Relay#Arcing (which I won't make part of this answer as it does not address the question).






            share|improve this answer























            • Thank you so much for your help @Ghanima. Btw does a timer relay also have the same working?

              – Aditya Raghu
              10 hours ago















            3














            The first stop to answer such questions should be the datasheet of the part in question. This is where the manufacturer lists the operating conditions of the device.



            That aside it is usually safe to have a relay active for longer periods of time, assuming you're within the operational range of current and voltage (again, as laid out in the datasheet).



            Wear and tear of an electromechanical relay is usually due to switching under load, i.e. with a voltage applied to the terminals, not being permanently on or off. For more on the issue of contact degradation see here https://en.wikipedia.org/wiki/Relay#Arcing (which I won't make part of this answer as it does not address the question).






            share|improve this answer























            • Thank you so much for your help @Ghanima. Btw does a timer relay also have the same working?

              – Aditya Raghu
              10 hours ago













            3












            3








            3







            The first stop to answer such questions should be the datasheet of the part in question. This is where the manufacturer lists the operating conditions of the device.



            That aside it is usually safe to have a relay active for longer periods of time, assuming you're within the operational range of current and voltage (again, as laid out in the datasheet).



            Wear and tear of an electromechanical relay is usually due to switching under load, i.e. with a voltage applied to the terminals, not being permanently on or off. For more on the issue of contact degradation see here https://en.wikipedia.org/wiki/Relay#Arcing (which I won't make part of this answer as it does not address the question).






            share|improve this answer













            The first stop to answer such questions should be the datasheet of the part in question. This is where the manufacturer lists the operating conditions of the device.



            That aside it is usually safe to have a relay active for longer periods of time, assuming you're within the operational range of current and voltage (again, as laid out in the datasheet).



            Wear and tear of an electromechanical relay is usually due to switching under load, i.e. with a voltage applied to the terminals, not being permanently on or off. For more on the issue of contact degradation see here https://en.wikipedia.org/wiki/Relay#Arcing (which I won't make part of this answer as it does not address the question).







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered 11 hours ago









            GhanimaGhanima

            12.5k114080




            12.5k114080












            • Thank you so much for your help @Ghanima. Btw does a timer relay also have the same working?

              – Aditya Raghu
              10 hours ago

















            • Thank you so much for your help @Ghanima. Btw does a timer relay also have the same working?

              – Aditya Raghu
              10 hours ago
















            Thank you so much for your help @Ghanima. Btw does a timer relay also have the same working?

            – Aditya Raghu
            10 hours ago





            Thank you so much for your help @Ghanima. Btw does a timer relay also have the same working?

            – Aditya Raghu
            10 hours ago













            1














            To add to @Ghanima's excellent answer, you may also wish to consider a latching relay. Briefly, a latching relay has two stable states (i.e. it is a bistable device, similar to a flip-flop). This means that the relay can be latched into an OPEN or CLOSED state, and it will remain in that state until commanded to change by the input. This avoids the necessity of supplying input voltage and current to maintain (for example) a NORMALLY OPEN relay in a CLOSED state for an extended period of time. Latching relays typically find application in situations similar to the one you've described in your question - where they must be in an OPEN or CLOSED state for extended periods of time.






            share|improve this answer



























              1














              To add to @Ghanima's excellent answer, you may also wish to consider a latching relay. Briefly, a latching relay has two stable states (i.e. it is a bistable device, similar to a flip-flop). This means that the relay can be latched into an OPEN or CLOSED state, and it will remain in that state until commanded to change by the input. This avoids the necessity of supplying input voltage and current to maintain (for example) a NORMALLY OPEN relay in a CLOSED state for an extended period of time. Latching relays typically find application in situations similar to the one you've described in your question - where they must be in an OPEN or CLOSED state for extended periods of time.






              share|improve this answer

























                1












                1








                1







                To add to @Ghanima's excellent answer, you may also wish to consider a latching relay. Briefly, a latching relay has two stable states (i.e. it is a bistable device, similar to a flip-flop). This means that the relay can be latched into an OPEN or CLOSED state, and it will remain in that state until commanded to change by the input. This avoids the necessity of supplying input voltage and current to maintain (for example) a NORMALLY OPEN relay in a CLOSED state for an extended period of time. Latching relays typically find application in situations similar to the one you've described in your question - where they must be in an OPEN or CLOSED state for extended periods of time.






                share|improve this answer













                To add to @Ghanima's excellent answer, you may also wish to consider a latching relay. Briefly, a latching relay has two stable states (i.e. it is a bistable device, similar to a flip-flop). This means that the relay can be latched into an OPEN or CLOSED state, and it will remain in that state until commanded to change by the input. This avoids the necessity of supplying input voltage and current to maintain (for example) a NORMALLY OPEN relay in a CLOSED state for an extended period of time. Latching relays typically find application in situations similar to the one you've described in your question - where they must be in an OPEN or CLOSED state for extended periods of time.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 26 mins ago









                SeamusSeamus

                3,0671322




                3,0671322



























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