Powerful 120v solid state relay for High-Risk Applications
Reliable 120v solid state relay Designs for Industrial and Industrial Applications
CHINA – ?¡ãAny Electronics?¡À proudly presents their whole range of 120v solid state relay . They provide a comprehensive set of 120v solid state relay items as well as other interrelated products. These units are observed in distinct applications for instance commercial applications, industrial control circuits along with OEM Panels. These devices include superb precision and repeatability. The regular 120v solid state relay that are made these days demand really little panel space.
120v solid state relay symbol
120v solid state relay diagram
120v solid state relay circuit
Opto 22 120D25 DC Control Solid State Relay, 120 VAC, 25 Amp, 4000 V Optical Isolation, 1/2 Cycle Maximum Turn-On/Off Time, 25 - 65 Hz Operating Frequency
Opto 22 offers a complete line of SSRs, from the rugged 120/ 240/380-volt AC Series to the small footprint MP Series, designed for mounting on printed circuit boards. All Opto 22 SSRs feature 4,000 volts of optical isolation, and most are UL and CSA recognized. The innovative use of room-temperature liquid epoxy encapsulation, coupled with Opto 22's unique heat-spreader technology, are key to mass producing the world's most reliable solid state relays. Every Opto 22 solid state relay is subjected to full load test and six times the rated current surge both before and after encapsulation. This double testing of every part before it leaves the factory means you can rely on Opto 22 solid state relays. All Opto 22 SSRs are guaranteed for life. Opto 22 provides a full range of Power Series relays with a wide variety of voltage (120-575 volts) and current options (3-45 amps). All Power Series relays feature 4,000 volts of optical isolation and have a high PRV rating. Some Power Series relays include built-in LEDs to indicate operation. The DC Series delivers isolated DC control to large OEM customers worldwide. Specifications: 4,000 V optical isolation, input to output, Zero voltage turn-on, Turn-on time: 0.5 cycle maximum, Turn-off time: 0.5 cycle maximum, Operating temperature: -40 degree C to 100 degree C, Operating frequency: 25 to 65 Hz, (operates at 400 Hz with six times off-state leakage), Coupling capacitance, input to output: 8 pF maximum, Hermetically sealed, DV/DT Off-state: 200 volts per microsecond, DV/DT commutating: snubbed for rated current at 0.5 power factor, UL recognized, CSA certified, CE component, Torque specs for screws: Control terminals; 6 in/lb, Field terminals, 18 in/lb.
89/336/EEC, 2002/95/EC, Canadian Standards Association, IEC 950: 1991-09, Underwriters Laboratory
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Jay asked I need help with Relay Specs?
Hi, I am a physics undergrad working in a lab at UCLA, and we are currently trying to figure out how to automate our current setup. I am quite new at practical electronics. I have handled a few things in class before but most of that was theoretical, and Relays were never really discussed. I am currently looking at some solid state relays on Newark, but i don't really know what i am looking for the schematic i drew up uses two relays. Our LabView system can put out 10VDC at 2mA, so i am using a relay to draw current from the wall @ a small DC voltage, and then using that voltage to operate another relay that will draw a 120V/60Hz current out of the wall to power some solenoid valves. The 2nd Relay is already taken care of (turns on a 3V 10mA), but we now need the smaller one to activate it, and to be honest i am not sure what the specs i am looking at mean. what do Load Voltage Max, Load Current, Isolation Voltage, and Forward Current mean? I figure that the Load current is how much it draws out of the power supply and that the load voltage max is how much voltage is required to switch it, but what is the forward current and the isolation voltage? Circuit Diagram (just to get a general idea) http://s558.photobucket.com/albums/ss22/mr_physix/?action=view¤t=Schematic.png I was under the impression that load was the drive circuit was called. Silly mistake on my part. That's why i was referencing the power supply.
And got the following answer:
To summarize and check I understand it, you have a logic board which gives 10V 2ma output, and you want to drive a solenoid valve that has needs 3V 10 ma (minimum) to operate it? You don;t really need a another "low power" relay to interface the two, and since relays are mechanical devices they are orders of magnitude less reliable than electronic components. A better solution would be a simple buffer amplifier that will make your 2ma output control a bigger current for driving higher powered devices. Most likely the logic board supplier will also sell a compatible board, if you want to buy one (it will probably have multiple driver circuits to handle several devices, e.g. 4 or 8). If you want to make you own, a standard 1-transistor relay driver circuit will work fine. Google for the circuit, or look in any textbook on practical circuit design. If you only need to handle 10V and less than 100 mA, the choice of transistor is completely non-critical, any "general purpose medium power transistor" should work fine without any need to bother with heatsinks, etc
The 120v solid state relay perform incredibly properly with different applications which are certain to energy distribution and protection. The relays include wide adjustment ranges using a scale which is simple to study either in three or four digits based on the model. These 120v solid state relay help in escalating the flexibility with the applications, decrease the general energy and upkeep expenses. You will find relays which are utilized for basic purposes which are available in reputable designs with speedy replacement possibilities. And you will discover models which are employed for industrial applications and heavier duty applications that operate on large loads. These items are made to meet the lifetime industrial control requires with the applications.
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