time delay solid state relay

ANY Timer Rrelay
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Successful time delay solid state relay for High-Risk Applications
Reliable time delay solid state relay Designs for Industrial and Industrial Applications
CHINA – ?¡ãAny Electronics?¡À proudly presents their whole range of time delay solid state relay . They provide a complete set of time delay solid state relay solutions and also other interrelated products. These units are observed in diverse applications such as industrial applications, industrial manage circuits and also OEM Panels. These devices come with great precision and repeatability. The standard time delay solid state relay which can be developed nowadays need incredibly tiny panel space.
Powerful time delay solid state relay for High-Risk Applications
Reliable time delay solid state relay Styles for Industrial and Industrial Applications
CHINA – ?¡ãAny Electronics?¡À proudly presents their whole variety of time delay solid state relay . They provide a comprehensive set of time delay solid state relay products and also other interrelated items. These units are noticed in diverse applications such as industrial applications, industrial manage circuits and OEM Panels. These devices include outstanding precision and repeatability. The typical time delay solid state relay which might be designed nowadays require really small panel space.

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Siemens 3RP1512-1AQ30 Solid State Time Relay, Industrial Housing, 22.5mm, Screw Terminal, On Delay Function, 1 CO Contact Elements, 1.5-30s Time Range, AC/DC 24 100-127VAC Control Supply Voltage

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Price: $42.84


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Ryan W asked 12VDC transformer / relay / alarm panel -- need a capacitor and resistor!

I'm holding a relay coil shut with a 12VDC / 500ma transformer (wall wort). The output of the relay is connected to a normally closed zone in my alarm system. I use this to tell me if the power has gone off while I'm not at home. However, with the transformer and relay only, I get no "power off" delay before the zone goes into alarm. Ideally, I'd like to get about a 30-60 second delay so that it won't go into alarm for short power outages. I don't have any way to do this through the alarm panel, so I need an electronic solution. I'm aware of a device which already does this (http://www.smarthome.com/7154.html) but I think I can do it cheaper with a capacitor (2, 3 .. ?) and a bleed resistor. Does anyone know the math and/or can you provide an answer to what size caps I need?

And got the following answer:

Trying to answer but YA taking breather. Or is it??? Edit: No it just doesn't want to display my answer. Try again... I may be reading your question wrong, but it looks like you want to charge the capacitor from the power supply, in such a way that if the power goes off the voltage on the capacitor will hold the relay closed for 30-60 seconds, until the capacitor discharges. That would work, but it is clunky, and you will need a big capacitor. Assuming that the relay will continue to hold closed until the voltage drops to about 60% of normal, C = 2 * T / R where R = the coil resistance of the relay Let's say you have a very small, low power relay with coil resistance 1200 ohms. For 30 seconds: C = 60 / 1200 = 0.05F = 50,000uF You would probably go for an aluminium electrolytic cap 47,000 uF, 16V. If your relay has a lower resistance coil, which it probably does, you will need a bigger capacitor, or several in parallel. You may need to charge the cap through a rectifier diode like 1N4001, so that when the power fails it doesn't discharge back through the power supply. The way I would do it is to use a darlington transistor, FET or solid-state relay to switch the line. Then you can do the same thing but with a much smaller capacitor, and you can run it from a battery or power direct from mains through a capacitor / rectifier circuit. Don't try that latter idea unless you know what I'm talking about, it's very easy to kill yourself...

The time delay solid state relay work really well with different applications which can be specific to energy distribution and protection. The relays come with wide adjustment ranges using a scale that is definitely easy to study either in three or four digits in line with the model. These time delay solid state relay aid in rising the flexibility in the applications, cut down the general energy and upkeep expenses. You’ll find relays which are used for common purposes which are available in reliable styles with rapid replacement selections. And you’ll find models which might be made use of for industrial applications and heavier duty applications that function on big loads. These solutions are made to meet the lifetime industrial control desires on the applications.
Their most current goods would be the Time counter, Timer Delay, time delay solid state relay, Swift Connect Couplings, Electronic Motor Couplings, Aluminum Couplings, Morse Couplings and several other folks. The internet site delivers a detailed description of every single model in different categories of time delay solid state relay couplings and sensors. These solutions are very helpful for high-risk applications. The time delay solid state relay are also accessible with attributes like multiple timing ranges and functions. The enterprise is at the moment seeking agents and dealers who can promote and sell their factory created goods. They’re usually on a lookout for developing new and much more trusted solutions depending on the needs and requirements with the business.

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