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The TWTADE SSR-25 DD is a solid state relay designed for high-current DC switching, supporting up to 25A with input voltages from 3 to 32V and output voltages from 5 to 60V. It includes a heat sink to maintain optimal temperature during continuous operation, features sensitive activation below 20mA input, and offers durable silver contacts with screw connectors for secure installation. Ideal for industrial and scientific applications requiring reliable, stable, and efficient power control.
| ASIN | B079BBZL7F |
| Best Sellers Rank | #155,529 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #45 in Solid State Relays |
| Brand | TWTADE |
| Brand Name | TWTADE |
| Coil Voltage | 32 volts_of_direct_current |
| Connector Type | Screw |
| Contact Current Rating | 25 A |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Current Rating | 25 A |
| Customer Reviews | 4.1 out of 5 stars 64 Reviews |
| Manufacturer | TWTADE |
| Maximum Switching Current | 25 A |
| Minimum Switching Voltage | 3 volts_of_direct_current |
| Model | SSR |
| Mounting Type | DIN Rail Mount |
| Operation Mode | Automatic |
| Part Number | SSR |
| UPC | 635648190419 |
| Unit Count | 1 Count |
| Wattage | 800 watts |
S**A
Reliable and Stable Performance Since 2023
It has been working very well since I installed it in 2023. The wiring was straightforward and it has remained stable during continuous use. I haven’t experienced any failures or overheating. Good quality for the price. I would definitely buy it again. ⭐⭐⭐⭐⭐
J**E
Works properly.
Works with less than 20 mA input. Not all relays are this sensitive.
G**H
Now it's to the moon!
I like how they interfaced with my flux capacitors like they were born with it, or maybe it's Maybelline.
L**T
Defective design.
It could be that the relay I recieved was defective, but it has a major defect. As long as the input power supply is isolated from the load power supply the relay works great. As soon as the control side and load side share a ground the relay no longer works. The load and control sides should be completely isolated. It makes no sense that a relay would be designed like this, or that any failure could cause it to behave like this. My relay is the 25 amp DC-DC model.
D**E
It works but the drawing is wrong
TWTADE SSR-25 DD 25A DC 3-32V to DC 5-60V SSR Solid State Relay - I got it to work after I figured out the "REFERENCE DIAGRAM DRAWING" is wrong. Pin 1 is the LOAD; Pin 2 is the positive power supply; pin 3 is the input positive; pin 4 is the input negative.
D**M
Great for 3D printing
I'm using this for the hot bed on a 3D printer and it fits perfect and works great!!
D**R
Unrelaible. Poor notations of critical wiring information.
Like many other negative reviewers, mine is now stuck closed (i.e. always on) after minimal use under low loads. I'm giving 2 stars instead of 1 because I may be partially responsible by having switched the load/power supply connections on the output side at some point. But if that was indeed what caused it to fail, they should have it noted on the connection points, and not require looking up the wiring diagram. Especially since that doesn't matter on a standard relay. I would not trust this kind of relay, at least this brand, again.
D**K
DC to DC 25A not working with a 3.3V signal.
it is advertised as 3 to 32V, but it didn't work with a 3.3V signal. It took a 5V signal, but I am using a pi to control this and don't feel like making a circuit to control it with a 5V signal. I will be returning it. I don't know if this a typical case, but find it annoying. I have a DC to AC relay to test, too. Also, the mappings are wrong for the terminals. It was a real headache.
R**L
Good quality
Works as expected
L**T
pas fiaible
je lai utiliser sur un systeme 12 vot et il a fonctionner pendant 15 jours puis plus rien.
Trustpilot
2 weeks ago
3 days ago