Siemens SIRIUS 3RF30 90 A solid-state relay: 1-pole, 45 mm width, without heat sink (must be mounted on a suitable heat sink). Contactless, silent and wear-free switching makes it ideal for frequently switched loads such as heating elements.
Technical data
| Series | 3RF30 |
|---|---|
| Product type | Solid-State Relay, 1-pole, 45 mm width, without heat sink (must be mounted on a suitable heat sink) |
| Maximum current | 90 A (with suitable cooling, AC-1) |
| Line voltage | 24–230 V AC, 48–460 V AC, 48–600 V AC |
| Control supply voltage | 24 V DC, 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. |
|---|---|---|---|---|
| 24–230 V AC | Zero-point switching | 24 V DC | Screw | 3RF3090-1AA02 |
| 48–460 V AC | Zero-point switching | 24 V DC | Screw | 3RF3090-1AA04 |
| 48–600 V AC | Zero-point switching | 4–30 V DC | Screw | 3RF3090-1AA45 |
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. Solid-state relays must be mounted on an adequately dimensioned heat sink; a sheet-steel mounting plate is inadequate for heat dissipation. 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: 3RF30 90 A, siemens ssr, solid-state relay, 3RF30, heater control, 3RF3090-1AA02, 3RF3090-1AA04, 3RF3090-1AA45