6PCS SSR-40DA Solid State Relay Single Phase Semi-Conductor Relay Input 3-32V DC Output 24-380V AC

As such, temperatures will be much higher than those of The best practice when installing a triac is to double the APM rating, so a 30amp service should have a 60amp heat sinks, use a lot of silicon and work it out to a thin coating by pressing it in circular motions. Taking care not to let the edges get too ragged. Sanding off the ANODIZED coating is not a good idea because it's designed to help with insulation. A powder coating is not anodized, it is a coating of aluminum. The 60 amp I used to turn on and off my hot water heater with a time-dependent logic controller has been in service for 3 years. That was perfect!
BTW, I also put a current sensor on it to see when it reaches its target temperature and shuts off, so I can **I just wanted to mention that these are not a disconnect they are at service voltage even when they are not connected to anything. This issue should be taken seriously.

Lyric Gorman

| Jun 26, 2021

I have seen some really bad reviews for inexpensive high power SSRs on Amazon, and I wonder if those are really bad or if they are not being properly cooled. The sink was able to drain The ones I have bought have been fine, but I purchased a very small sample size to make a true statement. These get pretty hot under load, so you should heat sink them properly (I recommend using a good thermal paste too). This is the result. So, I put it on a 40A SSR that carries around a 5. 0mm 3-way connector. There is a load of 9A. Rather than attach the heatsink directly to the SSR, I experimented without it to see what effect it would have. I would say a resounding YES to this. Too much heat is generated by the SSR Premature failure is one of its causes. I found the SSR stayed cool after adding this heatsink (with a coat of thermal paste, but a very thin one) to allow for easy handling. a bit early to tell whether this heatsink will last a long time, but the task it serves in my application seems to be well-done so far. Note that the heatsink is typically exposed by SSRs, which are usually enclosed. Active cooling is not present, but there is not much restriction to airflow. It's a beautiful cover for the SSR - I definitely like it! It would be nice if there were five covers as there are heatsinks, but alas, There is a note to that effect in the description, so this is not a complaint. Basically, I dinged a star because the price is a bit high for what you get. It is a bit more complicated to mount the SSR The heat sink is big, which has something to do with that. Taking into account both the pluses and the minuses, as well as airflow is important. Is there a way to improve it? You'll know if there's a better one when I see it! Save your SSRs and heatsink them until then! It works for me to make this choice.

Emerie Fuentes

| Aug 15, 2020

With these, you need to be extremely careful. There was only one I needed, so I ordered six instead. On the third use, I got it to blow up after I installed the one I needed in an application that was supposed to draw just 20% of its maximum rating. Make sure I haven't done anything wrong before I install another one. Check my math and diagram to make sure I haven't done anything incorrectly. If everything works fine, everything should be fine, since I tried a similar but more expensive relay and it did. We took it out and put a second one of these cheapos back in, but they didn't work. In the third case, it was still conducting between the terminals while de-energized. I agree with the reviewer, these are not quality items, and there is a danger involved.

Vance Rangel

| Nov 20, 2020

I really like the quality of this heatsink. The machining is very clean, the power coating is extremely thorough, and it has a very professional look. For the FOTEK SSR-101, the size and holes are perfect The 40 DA (40 amp solid state relay) is an electronic device. For general use, just sew this to the relay, mount it, and you're done. If the application involves high levels of heat, you may wish to sand down the top of the heatsink using 400 grit sandpaper Powdercoat can be removed with sandpaper of 800 grit. Between the heatsink and the relay, add a dab of thermal transfer paste. Please take note In this case, the heatsink interface should be refined to the best of its ability.

Arjun TALBOT

| Jan 22, 2021

Thermal loads of moderate intensity will be accommodated by these. About 1°C/W, I would guess. The fixtures slide on to DIN rails without a problem, but there is no clamp to hold them in place, so they will move around To mount the SSR, I would also suggest light sanding first to ensure a flat surface, and then thermal compound or gasket.

Hayley Lane

| Aug 23, 2020

It appears that there's only one clear cover, as the picture shows. Originally, I thought there'd be five clear covers. Quality seems to have been maintained on the product. Removes heat from the environment. This item is sized correctly for its intended use.

Aniya Donahue

| Feb 09, 2021

I need 3 of these to be able to drive less than 15A per unit (output is 16R resistive load @ 120Vac, input is 5V TTL). This unit was swapped with another one and works now. two units that had previously worked normally are now broken. One unit was working fine until today (less than 1 hour use) and the other This happens again with the signaling LED working, but with no conductivity. I have measured continuity/resistance multiple times and there are no openings and resistance is correct. It appears this type of unit breaks frequently. In the coming days, I will look into returning.

Skyla Cole

| Mar 31, 2021

In spite of this, I will keep them since I will find use for them. They will not trigger below 8 volts, though. Total waste of time for my intended usage, which is to interface with microcontrollers that operate at 5 volts. You can use them as long as you trigger them at a high voltage, and they work well, but if you are aiming for 5v, forget about.

Dante Woods

| Nov 10, 2020