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When a contactor develops a buzzing sound, do they usually need to be replaced? I have that problem in a breaker box attached to my hydrokinetic heating unit. My contractor has consistently told me the buzzing sound is irrevalent. Since winter is upon us with cold temperatures and I have an off peak/on peak system depending on these contactors doing their job to heat the auxilary water tanks for on peak heat when temperatures lower than 30 for a heat pump, I think the contactors are beginning to fail. Reason being.....every few days the heat temperatures in our house begin to drop about 3 points. Am I right on my inclination and am I being scammed by the electrical installer????
How can Contactor not mention noise? Relay clearly says
Contactor relays can be extremely loud to operate, making them unfit for use where noise is a chief concern.
therefore how could it be that the Contactor page itself not mention noise, and what, if anything, one should do about it?! (One supposes the noise they are referring to is buzzing.) Jidanni ( talk) 01:14, 28 February 2008 (UTC)
Yes, but a contactor, when first installed, makes a tiny buzz, but as the years go by, the buzz gets louder. The consumer wonders which of:
Jidanni ( talk) 03:13, 28 February 2008 (UTC)
The article has an image with the caption; "Albright SPST DC contactor,sometimes used in EV conversions." What are EV conversions? Best Regards. DynamoDegsy ( talk) 14:58, 24 April 2014 (UTC)
Recent edits have "tidied up" this article to convert it to US English [1] [2] and tag it as such [3]. Yet this article was created in British English [4], "specialised".
What is the basis for making this change? Contactors are not a US-specific device. Andy Dingley ( talk) 08:00, 1 July 2016 (UTC)
This article is exclusively about electromagnetic contactors but contactors can also be operated by pneumatics, hydraulics or camshafts. Is this already covered somewhere else or shall I add a section? Roberttherambler ( talk) 11:02, 11 September 2017 (UTC)
Under Arc suppression high voltage is defined as over 1000 V AC or over 600 V DC but under NEMA over 1000 V is defined as medium voltage. Also, under Operating principle, Rapid closing can, however, lead to increase contact bounce should have increased instead of increase 96.88.198.77 ( talk) 05:53, 17 May 2018 (UTC).
I am curious about the metals or alloys used in the actual contacts. What are they? Does the composition change for AC or DC? For someone who knows it would be an interesting addition here. Thanks — Preceding unsigned comment added by 97.76.189.98 ( talk) 22:09, 30 September 2019 (UTC)
![]() | This article is written in American English, which has its own spelling conventions (color, defense, traveled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus. |
![]() | This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||
|
When a contactor develops a buzzing sound, do they usually need to be replaced? I have that problem in a breaker box attached to my hydrokinetic heating unit. My contractor has consistently told me the buzzing sound is irrevalent. Since winter is upon us with cold temperatures and I have an off peak/on peak system depending on these contactors doing their job to heat the auxilary water tanks for on peak heat when temperatures lower than 30 for a heat pump, I think the contactors are beginning to fail. Reason being.....every few days the heat temperatures in our house begin to drop about 3 points. Am I right on my inclination and am I being scammed by the electrical installer????
How can Contactor not mention noise? Relay clearly says
Contactor relays can be extremely loud to operate, making them unfit for use where noise is a chief concern.
therefore how could it be that the Contactor page itself not mention noise, and what, if anything, one should do about it?! (One supposes the noise they are referring to is buzzing.) Jidanni ( talk) 01:14, 28 February 2008 (UTC)
Yes, but a contactor, when first installed, makes a tiny buzz, but as the years go by, the buzz gets louder. The consumer wonders which of:
Jidanni ( talk) 03:13, 28 February 2008 (UTC)
The article has an image with the caption; "Albright SPST DC contactor,sometimes used in EV conversions." What are EV conversions? Best Regards. DynamoDegsy ( talk) 14:58, 24 April 2014 (UTC)
Recent edits have "tidied up" this article to convert it to US English [1] [2] and tag it as such [3]. Yet this article was created in British English [4], "specialised".
What is the basis for making this change? Contactors are not a US-specific device. Andy Dingley ( talk) 08:00, 1 July 2016 (UTC)
This article is exclusively about electromagnetic contactors but contactors can also be operated by pneumatics, hydraulics or camshafts. Is this already covered somewhere else or shall I add a section? Roberttherambler ( talk) 11:02, 11 September 2017 (UTC)
Under Arc suppression high voltage is defined as over 1000 V AC or over 600 V DC but under NEMA over 1000 V is defined as medium voltage. Also, under Operating principle, Rapid closing can, however, lead to increase contact bounce should have increased instead of increase 96.88.198.77 ( talk) 05:53, 17 May 2018 (UTC).
I am curious about the metals or alloys used in the actual contacts. What are they? Does the composition change for AC or DC? For someone who knows it would be an interesting addition here. Thanks — Preceding unsigned comment added by 97.76.189.98 ( talk) 22:09, 30 September 2019 (UTC)