The Siemens 3RF2120-1AA02 is a solid state relay designed for efficient switching of AC voltages up to 230 V with a maximum load current of 20 A. Key features include zero-crossing functionality, which minimizes electrical noise and prolongs the life of connected components. This relay is typically used in industrial automation for controlling resistive and inductive loads.
| Type |
SSR |
| Input Voltage |
24V DC |
| Contact Configuration |
1CO |
| Switching Current |
20A |
| Switching Voltage |
230VAC |
| Width |
22.5mm |
| Height |
85mm |
| Complete with socket |
N/A |
| Connection |
Screw terminal |
| Control voltage (min.) |
15V DC |
| Degree of protection (IP) |
N/A |
| Depth |
48mm |
| Input Current |
15mA |
| IP Rating |
IP20 |
| Maximum Temperature |
+60°C |
| Min. temperature |
-25°C |
| Misc Attribute |
3RF2120-1AA02 |
| Model |
N/A |
| Number of Phases |
1 |
| Operating voltage AC 50 Hz |
N/A |
| Operating voltage AC 60 Hz |
N/A |
| Operating voltage DC |
N/A |
| Rated control supply voltage AC 50 Hz |
N/A |
| Rated control supply voltage AC 60 Hz |
N/A |
| Rated control supply voltage DC |
15 - 24V |
| Rated operation current Ie at AC-1 |
20A |
| Rated operation current Ie at AC-3 |
N/A |
| Rated operation current Ie at AC-51 |
20A |
| Rated operation current Ie at AC-53a |
N/A |
| Rated operation current Ie at AC-53b |
N/A |
| Relay technology category according to IEC 61810-7 |
N/A |
| Suitable for distribution board |
TRUE |
| Switching at zero-crossing |
N/A |
| Switching type |
Zero crossing |
| Switching voltage (min.) |
24V AC |
| Type of electric connection |
N/A |
| Type of switch function |
N/A |
| Voltage type (operating voltage) |
N/A |
| Voltage type for actuating |
DC |
| Weight |
72g |
| With detachable clamps |
N/A |
| With LED indication |
N/A |
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