relay purpose

ANY Timer Rrelay
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Helpful relay purpose for High-Risk Applications
Reliable relay purpose Designs for Commercial and Industrial Applications
CHINA – ?¡ãAny Electronics?¡À proudly presents their entire variety of relay purpose . They provide a comprehensive set of relay purpose products as well as other interrelated items. These units are noticed in various applications such as commercial applications, industrial manage circuits together with OEM Panels. These devices include fantastic precision and repeatability. The normal relay purpose that happen to be created these days call for really small panel space.

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Supco 90294 General Purpose Fan Relay, 1 A Load Current, 120 V Coil Voltage, Single Pole Double Throw Contacts

  • Electric relay for receiving and controlling electric signals
  • Controls signals for a fan
  • SPST-NO, SPST-NC, SPDT 1 NO/1 NC contact forms
  • Sealed enclosure

The Supco 902 series fan relays receive and control electrical signals for general purpose fan applications. This fan relay has SPST-NO, SPST-NC, SPDT-NO/NC contacts made of silver alloy and coil voltage ratings of 24VAC to 240VAC. It is suitable for use in fan applications.

Specifications
ContactsSPST-NO, SPST-NC, SPDT, 1 NO/1 NC
Contact materialSilver alloy
Power ratings (all forms)125VAC, 18 amp resistive, 12 FLA, 60 LRA, 240/277VAC, 18 amp resistive, 8 FLA, 48 LRA
Special power ratings (form 1 and 2)125VAC, 14 FLA, 84 LRA, 277VAC, 25 amp resistive
Pilot ratings (all forms)3 amp, 277VAC general purpose
250VA at 250VAC
277VA at 277VAC
125VA at 125VAC
Coil voltage rating24, 120, 208/240, 77VAC, 12, 24
Coil frequency50/60 Hz
Coil pick-up voltageAC 85% of nominal, DC 75% of nominal
Coil power ratingAD DC, Inrush 5VA 3VA, Sealed 3VA 3VA

Relay switches (also called an electrical relay or an electrical relay switch) use a small amount of power to control a larger source of power connected to electrical devices such as car motors, computers, and lighting installations. A basic relay switch has a control circuit with an electromagnetic coil and a load circuit with contacts and a lever. When current flows into the relay switch, it moves through the coil and a magnetic field is created, which causes the lever in the load circuit to move between contacts, either turning the device on or off. In a normally open (NO) relay switch, when power is supplied to the relay, the load circuit is closed and the power source connected to the relay is turned on. In a normally closed (NC) relay switch, when power is supplied to the relay, the load circuit is open and the power source connected to the relay is turned off. In other types of relay switches, non-moving parts such as transistors or semiconductors can be used as the control circuit to operate the switching mechanism. Relay switches can be controlled with an external switch, such as a light switch, or they can be connected to an automatically switched power source, such as a car ignition. One relay can operate multiple switches, and multiple relays can be operated with a single switch, with each relay operating independently from the other relays in the system.

Supco manufactures test instruments and replacement parts for heating, ventilation, air conditioning, and refrigeration systems. The company, founded in 1945, is headquartered in Allenwood, NJ.

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rEaLiTy asked How can i used a RF reciever to control a relay which would control an AC lighting unit?

I am trying to design an RF transmitter of very low frequency to make contact with a RF reciever, so when the frequency is obtained by the reciever, it would then turn on the relay which would power on the lights in a certain room of the house. Any help is appreciated. Thanks, this is for my Electronics Senior Project undergraduate level

And got the following answer:

Just tune the receiver to the proper frequency and amplify it via RF amp, or IF amps. Then detect with a RF diode, and use the DC voltage to drive a transistor that activates the relay. But only certain frequencies are allowed to be used for this purpose, so check with the various government regulations. I don't know of any that are "very low frequency", which by definition is 3 kHz to 30 kHz. This is a very difficult range to work with as the antenna has to be many miles long. To avoid false triggering, you may want to modulate the RF with a specific audio frequency and detect that frequency in the receiver. Or a specific pulse sequence for a more elaborate setup. But 30 kHz is so low that it is difficult to modulate. PS, you can buy these units, fairly cheaply. .

The relay purpose work really properly with distinct applications which can be particular to energy distribution and protection. The relays come with wide adjustment ranges using a scale that’s easy to study either in 3 or 4 digits in line with the model. These relay purpose aid in escalating the flexibility of your applications, cut down the overall power and upkeep costs. There are actually relays that are made use of for common purposes which come in reputable designs with swift replacement choices. And you can find models which might be used for industrial applications and heavier duty applications that work on substantial loads. These merchandise are produced to meet the lifetime industrial control wants on the applications.
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