CG Solid State Relay SSR-60DD DC to DC Input 3-32VDC to Output 5-240VDC 60A Single Phase Plastic Cover…

Im using one of these 40 amp SSRs to PWM a transmission cooler fan up under my jeep. Been installed for about a year now and so far no issues. If you use it to control a motor you have to run a fly back diode to keep from ruining the SSR. Thats what the 3 black rectangles with red a black wires running to them are. Gonna buy another one of these to pwm a windshield washer pump for water injection pre turbo (cheap turbo, dont care about the compressor wheel)

I run a powder coating oven of of these works great

Arrived non functioning. The output circuit is always on. Fried my induction board with this thing. Will try a different one and test again but as of now, 1 star and I have to buy a new board.

I have one of this brand solid state relays running my pickups electric fan at 12v with 250 hz pwm. Works great for this purpose and you can even get heat sinks for them. It's been on the truck over a year now and ~ 9000 miles, mostly in the heat.

I have been needing these for a long time and didn't even know it. Mechanical relays fail pretty quick in some applications and have other issues. This works perfectly with a control voltage of greater than 3 volts and is dead silent. No moving parts. The back is an awesome heat sink. Easy to mount and hook up. Love these things just ordered more.

I used the SSR to drive 2 LED backup lights. The SSR is installed under the front seat. I clamped a magnet on the shift rod and a magnetic read switch provides the SSR's input current.

I thought solid state relays (SSR’s) would be awesome, but they are troublesome and possibly dangerous is some applications. Here is why: I run a standard brushed DC motor directly off a solar (PV) array. The panels are older, so now de-rated from original maxes. The relevant numbers are motor (190V, 10.5A) and array only puts out (200V, 9A). Those are absolute max values - open circuit voltage and short circuit amperage - only seen with no loads, whereas they significantly drop the instant you use power). Unlike a wall plug or a battery, PV panels can never make higher voltage, nor more amperage than rated even if short circuited. Point being: with this array it is IMPOSSIBLE to put out more than 190V and 9A, EVER - even if motor stalls, even during start-up - never can exceed 190V, 9A. So… I wanted to add a sun-sensing circuit - turn on motor when tiny controlling PV (playing card sized; 5V, less than 2W) had enough sun to turn on the relay, connecting the big PV array to the motor. I bought several SSR’s, smallest 220V was 25A - way below my ABSOLUTE maxes. First one died after 3 minutes. Couldn’t tell though because the motor was still running. Put my hand over the tiny control PV (simulating shade) and motor kept running… but the SSR’s control light was out as expected??? Anyway, troubleshot for a few seconds until I suspected relay malfunctioning, so I disconnected the control wires AND MOTOR KEPT RUNNING?!?! Installed another SSR, same death. Knowing full well I could NEVER exceed the amps, still I bought an 80A SSR - waaaaaay overkill, but some mfg’s try to blame which side the load is on, some blame start-up amps and give factors for oversizing relay amps (although most Amz resellers don’t mention this), with the worst case I’ve seen being up to 7 times oversized. Again, shouldn’t apply to me, it is IMPOSSIBLE for my array to EVER put out more than 190V or 10A, but I played their game and even oversized all their oversizing factors (I was nearly 9x oversized). SAME DEATH! Motor still running with no control wires attached! To me, the key safety feature for any relay (or any electrical device), is that it must not fail in the on position. If anything, a problem should result in no power - think chainsaw saw that won’t turn off, or EV that keeps going when you let off the throttle. That’s what I meant by dangerous - these SSR’s can ‘mysteriously’ die, but when they do they can stay on - never turn off. I was extremely disappointed, because SSR’s have such great promise - use very low power to control very large power circuits and have a very long cycle life, since no mechanical/arcing wear. However, be here warned, there are apparently at least some applications (undefined as to how or why) where they just don’t work, and could fail in the on position! Also note, I tried various mfg’s, so I don’t blame any particular Amz seller or brand - and each seller got this same review. For what it’s worth, and for those who know, my guess is that you may need a (large enough) flyback diode on the load side for when a large PM DC motor is unloaded (then the motor acts as a generator as it spins down). If so, the mfg’s should build them in to the relay for general use. Hope you found all this helpful.

I've killed a couple accidentally because the output is one direction so if you feed in from the wrong direction for too long you kill it. Either toss in a slip of paper or label it better then these would be 5 star all day every day. And they get HOT so scrounge up some old computer heatsinks and JB Weld them on with a thin layer so you get heat transfer.

No funciona como un relavador normal energizado o no este se mantiene activado

Great contactless and silent relay, this will last forever if its well configured and silicone paste applied for heath transfer

This is an excellent relay, works perfectly and little noise (40db or so) when turning on

Got 2 of these, One just shorted the output all the time so I always had 120VAC on the output (even with the control wires disconnected) the other 1/2 worked in that it only put out 60VAC when no input signal was given, then called up to 120V when a signal was sent

Thank you