Siemens SIRIUS 3RT1 size S12 3-pole power contactors, solid-state mechanism. For switching high-power motors in AC-3/AC-3e: 400–500 A, up to 250 kW at 400 V.
Technical data
| Series | 3RT1075, 3RT1076 |
|---|---|
| Size | S12 |
| Poles | 3 |
| Operating mechanism | Solid-State Mechanism |
| AC-3 / AC-3e rated current (500 V) | 400–500 A |
| Motor rating (400 V, AC-3) | up to 250 kW |
| Coil | AC/DC (50/60 Hz AC or DC), integrated varistor |
| Main conductors | Busbar connection (terminal kit included) |
| Mounting | Screw fixing |
| Standard | IEC 60947-4-1 |
Article numbers
| Ie AC-3 500 V (A) | 400 V (kW) | 500 V (kW) | 690 V (kW) | Ie AC-1 (A) | Auxiliary contacts | Coil voltage | Version | Screw | Spring-loaded |
|---|---|---|---|---|---|---|---|---|---|
| 400 | 200 | – | – | – | 2 NO + 2 NC | 96–127 V AC/DC | Two removable lateral auxiliary switches | 3RT1075-6SF36 | – |
| 400 | 200 | – | – | – | 2 NO + 2 NC | 200–277 V AC/DC | Two removable lateral auxiliary switches | 3RT1075-6SP36 | – |
| 500 | 250 | – | – | – | 2 NO + 2 NC | 96–127 V AC/DC | Two removable lateral auxiliary switches | 3RT1076-6SF36 | – |
| 500 | 250 | – | – | – | 2 NO + 2 NC | 200–277 V AC/DC | Two removable lateral auxiliary switches | 3RT1076-6SP36 | – |
| 400 | 200 | – | – | – | 2 NO + 2 NC | 96–127 V AC/DC | Two permanently mounted lateral auxiliary switches | 3RT1075-6SF36-3PA0 | – |
| 400 | 200 | – | – | – | 2 NO + 2 NC | 200–277 V AC/DC | Two permanently mounted lateral auxiliary switches | 3RT1075-6SP36-3PA0 | – |
| 500 | 250 | – | – | – | 2 NO + 2 NC | 96–127 V AC/DC | Two permanently mounted lateral auxiliary switches | 3RT1076-6SF36-3PA0 | – |
| 500 | 250 | – | – | – | 2 NO + 2 NC | 200–277 V AC/DC | Two permanently mounted lateral auxiliary switches | 3RT1076-6SP36-3PA0 | – |
Other coil voltages (e.g. 23–26 V, 42–48 V, 200–220 V, 380–420 V AC/DC) are available on request by changing the 10th and 11th digits of the article number. Auxiliary switches and spare parts are ordered separately.
Technical data and article numbers are based on Siemens catalog IC 10 · 2026 (chapter 3, contactors for switching motors) 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: 3RT1 S12, siemens contactor, 3RT1, power contactor, large contactor, 3RT1075-6SF36, 3RT1075-6SP36, 3RT1076-6SF36, 3RT1076-6SP36, 3RT1075-6SF36-3PA0, 3RT1075-6SP36-3PA0, 3RT1076-6SF36-3PA0, 3RT1076-6SP36-3PA0