Siemens SIRIUS 3RT2 size S0 3-pole power contactors, ac coil versions. For switching motors in AC-3/AC-3e: 9–38 A, up to 18.5 kW (400 V).
Technical data
| Series | 3RT2023, 3RT2024, 3RT2025, 3RT2026, 3RT2027, 3RT2028 |
|---|---|
| Size | S0 |
| Poles | 3 |
| Coil | AC coil |
| AC-3 / AC-3e rated current (400 V) | 9–38 A |
| Motor rating (400 V, AC-3) | up to 18.5 kW |
| Mounting | Screw or snap-on DIN rail mounting |
| Terminals | Screw or spring-loaded (by article number) |
| Standard | IEC 60947-4-1 |
Article numbers
| Ie AC-3 400 V (A) | Motor rating 400 V (kW) | Ie AC-1 (A) | Auxiliary contacts | Coil voltage | Version | Screw | Spring-loaded |
|---|---|---|---|---|---|---|---|
| 9 | 4 | 40 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2023-1AB00 | 3RT2023-2AB00 |
| 9 | 4 | 40 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2023-1AF00 | 3RT2023-2AF00 |
| 9 | 4 | 40 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2023-1AP00 | 3RT2023-2AP00 |
| 12 | 5.5 | 40 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2024-1AB00 | 3RT2024-2AB00 |
| 12 | 5.5 | 40 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2024-1AF00 | 3RT2024-2AF00 |
| 12 | 5.5 | 40 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2024-1AP00 | 3RT2024-2AP00 |
| 17 | 7.5 | 40 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2025-1AB00 | 3RT2025-2AB00 |
| 17 | 7.5 | 40 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2025-1AF00 | 3RT2025-2AF00 |
| 17 | 7.5 | 40 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2025-1AP00 | 3RT2025-2AP00 |
| 25 | 11 | 40 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2026-1AB00 | 3RT2026-2AB00 |
| 25 | 11 | 40 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2026-1AF00 | 3RT2026-2AF00 |
| 25 | 11 | 40 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2026-1AP00 | 3RT2026-2AP00 |
| 32 | 15 | 50 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2027-1AB00 | 3RT2027-2AB00 |
| 32 | 15 | 50 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2027-1AF00 | 3RT2027-2AF00 |
| 32 | 15 | 50 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2027-1AP00 | 3RT2027-2AP00 |
| 38 | 18.5 | 50 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2028-1AB00 | 3RT2028-2AB00 |
| 38 | 18.5 | 50 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2028-1AF00 | 3RT2028-2AF00 |
| 38 | 18.5 | 50 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2028-1AP00 | 3RT2028-2AP00 |
| 9 | 4 | 40 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2023-1AC20 | 3RT2023-2AC20 |
| 9 | 4 | 40 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2023-1AG20 | 3RT2023-2AG20 |
| 9 | 4 | 40 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2023-1AL20 | 3RT2023-2AL20 |
| 12 | 5.5 | 40 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2024-1AC20 | 3RT2024-2AC20 |
| 12 | 5.5 | 40 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2024-1AG20 | 3RT2024-2AG20 |
| 12 | 5.5 | 40 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2024-1AL20 | 3RT2024-2AL20 |
| 17 | 7.5 | 40 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2025-1AC20 | 3RT2025-2AC20 |
| 17 | 7.5 | 40 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2025-1AG20 | 3RT2025-2AG20 |
| 17 | 7.5 | 40 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2025-1AL20 | 3RT2025-2AL20 |
| 25 | 11 | 40 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2026-1AC20 | 3RT2026-2AC20 |
| 25 | 11 | 40 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2026-1AG20 | 3RT2026-2AG20 |
| 25 | 11 | 40 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2026-1AL20 | 3RT2026-2AL20 |
| 32 | 15 | 50 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2027-1AC20 | 3RT2027-2AC20 |
| 32 | 15 | 50 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2027-1AG20 | 3RT2027-2AG20 |
| 32 | 15 | 50 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2027-1AL20 | 3RT2027-2AL20 |
| 38 | 18.5 | 50 | 1 NO + 1 NC | 24 V AC | Standard | 3RT2028-1AC20 | 3RT2028-2AC20 |
| 38 | 18.5 | 50 | 1 NO + 1 NC | 110 V AC | Standard | 3RT2028-1AG20 | 3RT2028-2AG20 |
| 38 | 18.5 | 50 | 1 NO + 1 NC | 230 V AC | Standard | 3RT2028-1AL20 | 3RT2028-2AL20 |
| 9 | 4 | 40 | 2 NO + 2 NC | 24 V AC | Removable auxiliary switch | 3RT2023-1AB04 | 3RT2023-2AB04 |
| 9 | 4 | 40 | 2 NO + 2 NC | 230 V AC | Removable auxiliary switch | 3RT2023-1AP04 | 3RT2023-2AP04 |
| 12 | 5.5 | 40 | 2 NO + 2 NC | 24 V AC | Removable auxiliary switch | 3RT2024-1AB04 | 3RT2024-2AB04 |
| 12 | 5.5 | 40 | 2 NO + 2 NC | 110 V AC | Removable auxiliary switch | 3RT2024-1AF04 | 3RT2024-2AF04 |
| 12 | 5.5 | 40 | 2 NO + 2 NC | 230 V AC | Removable auxiliary switch | 3RT2024-1AP04 | 3RT2024-2AP04 |
| 17 | 7.5 | 40 | 2 NO + 2 NC | 24 V AC | Removable auxiliary switch | 3RT2025-1AB04 | 3RT2025-2AB04 |
| 17 | 7.5 | 40 | 2 NO + 2 NC | 110 V AC | Removable auxiliary switch | 3RT2025-1AF04 | 3RT2025-2AF04 |
| 17 | 7.5 | 40 | 2 NO + 2 NC | 230 V AC | Removable auxiliary switch | 3RT2025-1AP04 | 3RT2025-2AP04 |
| 25 | 11 | 40 | 2 NO + 2 NC | 24 V AC | Removable auxiliary switch | 3RT2026-1AB04 | 3RT2026-2AB04 |
| 25 | 11 | 40 | 2 NO + 2 NC | 110 V AC | Removable auxiliary switch | 3RT2026-1AF04 | 3RT2026-2AF04 |
| 25 | 11 | 40 | 2 NO + 2 NC | 230 V AC | Removable auxiliary switch | 3RT2026-1AP04 | 3RT2026-2AP04 |
| 32 | 15 | 50 | 2 NO + 2 NC | 24 V AC | Removable auxiliary switch | 3RT2027-1AB04 | 3RT2027-2AB04 |
| 32 | 15 | 50 | 2 NO + 2 NC | 110 V AC | Removable auxiliary switch | 3RT2027-1AF04 | 3RT2027-2AF04 |
| 32 | 15 | 50 | 2 NO + 2 NC | 230 V AC | Removable auxiliary switch | 3RT2027-1AP04 | 3RT2027-2AP04 |
| 38 | 18.5 | 50 | 2 NO + 2 NC | 24 V AC | Removable auxiliary switch | 3RT2028-1AB04 | 3RT2028-2AB04 |
| 38 | 18.5 | 50 | 2 NO + 2 NC | 110 V AC | Removable auxiliary switch | 3RT2028-1AF04 | 3RT2028-2AF04 |
| 38 | 18.5 | 50 | 2 NO + 2 NC | 230 V AC | Removable auxiliary switch | 3RT2028-1AP04 | 3RT2028-2AP04 |
| 9 | 4 | 40 | 2 NO + 2 NC | 230 V AC | Permanently mounted auxiliary switch, Varistor plugged on front | 3RT2023-1CL24-3MA0 | 3RT2023-2CL24-3MA0 |
| 12 | 5.5 | 40 | 2 NO + 2 NC | 230 V AC | Permanently mounted auxiliary switch, Varistor plugged on front | 3RT2024-1CL24-3MA0 | 3RT2024-2CL24-3MA0 |
| 17 | 7.5 | 40 | 2 NO + 2 NC | 230 V AC | Permanently mounted auxiliary switch, Varistor plugged on front | 3RT2025-1CL24-3MA0 | 3RT2025-2CL24-3MA0 |
| 25 | 11 | 40 | 2 NO + 2 NC | 230 V AC | Permanently mounted auxiliary switch, Varistor plugged on front | 3RT2026-1CL24-3MA0 | 3RT2026-2CL24-3MA0 |
| 32 | 15 | 50 | 2 NO + 2 NC | 230 V AC | Permanently mounted auxiliary switch, Varistor plugged on front | 3RT2027-1CL24-3MA0 | 3RT2027-2CL24-3MA0 |
| 38 | 18.5 | 50 | 2 NO + 2 NC | 230 V AC | Permanently mounted auxiliary switch, Varistor plugged on front | 3RT2028-1CL24-3MA0 | 3RT2028-2CL24-3MA0 |
Coil voltages not listed are available on request. Auxiliary switches, surge suppressors and link modules 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: 3RT2 S0 AC, siemens contactor, 3RT2, power contactor, motor contactor, 3RT2023-1AB00, 3RT2023-2AB00, 3RT2023-1AF00, 3RT2023-2AF00, 3RT2023-1AP00, 3RT2023-2AP00, 3RT2024-1AB00, 3RT2024-2AB00, 3RT2024-1AF00, 3RT2024-2AF00, 3RT2024-1AP00, 3RT2024-2AP00, 3RT2025-1AB00, 3RT2025-2AB00, 3RT2025-1AF00, 3RT2025-2AF00, 3RT2025-1AP00, 3RT2025-2AP00, 3RT2026-1AB00, 3RT2026-2AB00, 3RT2026-1AF00, 3RT2026-2AF00, 3RT2026-1AP00, 3RT2026-2AP00, 3RT2027-1AB00, 3RT2027-2AB00, 3RT2027-1AF00, 3RT2027-2AF00, 3RT2027-1AP00, 3RT2027-2AP00, 3RT2028-1AB00, 3RT2028-2AB00, 3RT2028-1AF00, 3RT2028-2AF00, 3RT2028-1AP00, 3RT2028-2AP00, 3RT2023-1AC20, 3RT2023-2AC20, 3RT2023-1AG20, 3RT2023-2AG20, 3RT2023-1AL20, 3RT2023-2AL20, 3RT2024-1AC20, 3RT2024-2AC20, 3RT2024-1AG20, 3RT2024-2AG20, 3RT2024-1AL20, 3RT2024-2AL20, 3RT2025-1AC20, 3RT2025-2AC20, 3RT2025-1AG20, 3RT2025-2AG20, 3RT2025-1AL20, 3RT2025-2AL20, 3RT2026-1AC20, 3RT2026-2AC20, 3RT2026-1AG20, 3RT2026-2AG20, 3RT2026-1AL20, 3RT2026-2AL20, 3RT2027-1AC20, 3RT2027-2AC20, 3RT2027-1AG20, 3RT2027-2AG20, 3RT2027-1AL20, 3RT2027-2AL20, 3RT2028-1AC20, 3RT2028-2AC20, 3RT2028-1AG20, 3RT2028-2AG20, 3RT2028-1AL20, 3RT2028-2AL20, 3RT2023-1AB04, 3RT2023-2AB04, 3RT2023-1AP04, 3RT2023-2AP04, 3RT2024-1AB04, 3RT2024-2AB04, 3RT2024-1AF04, 3RT2024-2AF04, 3RT2024-1AP04, 3RT2024-2AP04, 3RT2025-1AB04, 3RT2025-2AB04, 3RT2025-1AF04, 3RT2025-2AF04, 3RT2025-1AP04, 3RT2025-2AP04, 3RT2026-1AB04, 3RT2026-2AB04, 3RT2026-1AF04, 3RT2026-2AF04, 3RT2026-1AP04, 3RT2026-2AP04, 3RT2027-1AB04, 3RT2027-2AB04, 3RT2027-1AF04, 3RT2027-2AF04, 3RT2027-1AP04, 3RT2027-2AP04, 3RT2028-1AB04, 3RT2028-2AB04, 3RT2028-1AF04, 3RT2028-2AF04, 3RT2028-1AP04, 3RT2028-2AP04, 3RT2023-1CL24-3MA0, 3RT2023-2CL24-3MA0, 3RT2024-1CL24-3MA0, 3RT2024-2CL24-3MA0, 3RT2025-1CL24-3MA0, 3RT2025-2CL24-3MA0, 3RT2026-1CL24-3MA0, 3RT2026-2CL24-3MA0, 3RT2027-1CL24-3MA0, 3RT2027-2CL24-3MA0, 3RT2028-1CL24-3MA0, 3RT2028-2CL24-3MA0