Siemens SIRIUS 3RB3113 / 3RB3123 electronic overload relays with wide setting range protect size S00 / S0 motors against overload, phase failure and asymmetry. Internally supplied; trip class 5E / 10E / 20E / 30E (adjustable). All article numbers are listed below.
Technical data
| Series | 3RB3113 / 3RB3123 |
|---|---|
| Size | S00 / S0 |
| Trip class | 5E / 10E / 20E / 30E (adjustable) |
| Protection | Overload, phase failure and asymmetry |
| Power supply | Internal (no external supply needed) |
| Auxiliary contacts | 1 NO + 1 NC |
| Reset | Manual and automatic |
| Functions | TEST and self-monitoring, switch position indicator |
Article numbers
| Size | Version | Motor rating (kW) | Setting range (A) | Max. gG fuse (A) | Screw | Spring-loaded |
|---|---|---|---|---|---|---|
| S00 | Mounting on contactors | 0.04–0.09 | 0.1–0.4 | 4 | 3RB3113-4RB0 | 3RB3113-4RE0 |
| S00 | Mounting on contactors | 0.12–0.37 | 0.32–1.25 | 6 | 3RB3113-4NB0 | 3RB3113-4NE0 |
| S00 | Mounting on contactors | 0.37–1.5 | 1–4 | 20 | 3RB3113-4PB0 | 3RB3113-4PE0 |
| S00 | Mounting on contactors | 1.5–5.5 | 3–12 | 50 | 3RB3113-4SB0 | 3RB3113-4SE0 |
| S00 | Mounting on contactors | 2.2–7.5 | 4–16 | 50 | 3RB3113-4TB0 | 3RB3113-4TE0 |
| S0 | Mounting on contactors | 0.04–0.09 | 0.1–0.4 | 4 | 3RB3123-4RB0 | 3RB3123-4RE0 |
| S0 | Mounting on contactors | 0.12–0.37 | 0.32–1.25 | 6 | 3RB3123-4NB0 | 3RB3123-4NE0 |
| S0 | Mounting on contactors | 0.37–1.5 | 1–4 | 20 | 3RB3123-4PB0 | 3RB3123-4PE0 |
| S0 | Mounting on contactors | 1.5–5.5 | 3–12 | 50 | 3RB3123-4SB0 | 3RB3123-4SE0 |
| S0 | Mounting on contactors | 3–11 | 6–25 | 63 | 3RB3123-4QB0 | 3RB3123-4QE0 |
| S0 | Mounting on contactors | 5.5–18.5 | 10–40 | 80 | 3RB3123-4VB0 | 3RB3123-4VE0 |
Motor ratings are guide values for 4-pole standard motors at 50 Hz 400 V AC.
Technical data and article numbers are based on Siemens catalog IC 10 · 2026 (chapter 7, overload relays) 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: 3RB3113 / 3RB3123, siemens electronic overload relay, 3RB, overload relay, motor protection, 3RB3113-4RB0, 3RB3113-4RE0, 3RB3113-4NB0, 3RB3113-4NE0, 3RB3113-4PB0, 3RB3113-4PE0, 3RB3113-4SB0, 3RB3113-4SE0, 3RB3113-4TB0, 3RB3113-4TE0, 3RB3123-4RB0, 3RB3123-4RE0, 3RB3123-4NB0, 3RB3123-4NE0, 3RB3123-4PB0, 3RB3123-4PE0, 3RB3123-4SB0, 3RB3123-4SE0, 3RB3123-4QB0, 3RB3123-4QE0, 3RB3123-4VB0, 3RB3123-4VE0