Siemens SIRIUS 3RT1025-1AP00-1AA0 power contactor, size S0, 3 NO main contacts, screw terminals, 15.5 A AC-4 at 400 V, 11 kW at 690 V, 50 Hz, DIN rail mount, IP20 front.
| Parameter | Value |
|---|---|
| Contactor frame size | S0 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-4 @ 400 V | 15.5 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 10 kW |
| Rated value @ 690 V | 11 kW |
| Rated value @ 230 V | 6 A |
| Rated value @ 24 V | 10 A |
| Rated value @ 60 V | 2 A |
| Rated value @ 110 V | 1 A |
| Rated value @ 220 V | 0.3 A |
| Parameter | Value |
|---|---|
| Control supply voltage type | AC |
| Rated value @ 50 Hz | 0.8 ... 1.1 |
| Rated value @ 50 Hz | 230 V |
| Parameter | Value |
|---|---|
| Main poles | 3 |
| Main NO contacts | 3 |
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Parameter | Value |
|---|---|
| Short-circuit coordination type 1, fuse | fuse gL/gG: 63 A |
| Short-circuit coordination type 2, fuse | fuse gL/gG: 25 A |
| Aux. switch short-circuit protection, fuse | fuse gL/gG: 10 A |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Conductor cross-section, solid | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Side-by-side mounting | Yes |
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 10 000 000 |
| Durability with aux. switch block (cycles, typ.) | 10 000 000 |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 85 mm |
| Depth | 91 mm |
For general motor starting (AC-3), the part is typically applied up to its 7.5 kW (AC-2) or 11 kW (690 V) capability, but the datasheet does not list a separate AC-3 figure; the AC-2 and AC-4 values bound the envelope. The operating voltage range is 0.8 to 1.1 times the rated control supply voltage at 50 Hz, so a 230 V coil holds in from about 184 V to 253 V.
For type 1 coordination (contactor may need replacement after a fault), use a 63 A gL/gG fuse. The rated frequency is 50 Hz.
Solid conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², max 2x 0.75 to 4 mm². Stranded: 2x 1 to 2.5 mm², 2x 2.5 to 6 mm², max 2x 10 mm². AWG: 2x 16 to 12, 2x 14 to 10, 1x 8.
Yes, side-by-side mounting is allowed. Maintain 6 mm clearance to adjacent devices on the side.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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