Siemens SIRIUS 3RF33 6 A solid-state contactor: 1-pole, with integrated heat sink, ready to use. Contactless, silent and wear-free switching makes it ideal for frequently switched loads such as heating elements.
Technical data
| Series | 3RF33 |
|---|---|
| Product type | Solid-State Contactor, 1-pole, with integrated heat sink, ready to use |
| Maximum current | 6 A (AC-51) |
| Line voltage | 48–600 V AC |
| Control supply voltage | 4–30 V DC |
| Connection | Screw |
| Frequency | 50–60 Hz |
| Typical use | Resistive heaters, furnace and extruder heating zones, loads with frequent switching |
Article numbers
| Line voltage | Switching type | Control voltage | Connection | Article No. |
|---|---|---|---|---|
| 48–600 V AC | Zero-point switching | 4–30 V DC | Screw | 3RF3306-1AA45 |
Zero-point switching versions are for resistive loads (heaters), instantaneous switching versions for inductive loads. In systems with high voltage peaks or at 575 V and above, versions with 1600 V blocking voltage are recommended. Other control supply voltages on request.
Technical data and article numbers are based on Siemens catalog IC 10 · 2026 (chapter 6, solid-state switching devices) and are for information only. Image is representative.
For price, stock and lead time, use the Request a Quote button or call +90 533 945 27 94. Sending the article number is enough.
Tags: 3RF33 6 A, siemens ssr, solid-state relay, 3RF33, heater control, 3RF3306-1AA45