Siemens SIRIUS power contactor, size S2, screw-type terminals, 18.5 kW at 500 V AC-3, 55 mm wide, DIN rail snap-on.
| Parameter | Value |
|---|---|
| Contactor frame size | S2 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 29 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 18.5 kW |
| Rated value @ 690 V | 10 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: 125 A |
| Short-circuit coordination type 2, fuse | fuse gL/gG: 63 A |
| Aux. switch short-circuit protection, fuse | fuse gL/gG: 10 A |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Aux. / control circuit connection | spring-loaded terminals |
| Conductor cross-section, solid | 2x (0.25 ... 2.5 mm²) |
| Conductor cross-section, solid or stranded | 2x (0.75 ... 16 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.25 ... 1.5 mm²) |
| Mounting method | screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| 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 |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
| Parameter | Value |
|---|---|
| Width | 55 mm |
| Height | 112 mm |
| Depth | 115 mm |
| Parameter | Value |
|---|---|
| At AC | 7 ... 20 ms |
Main circuit screw terminals accept 2x (0.75...25 mm²) stranded and 2x (0.25...2.5 mm²) solid. The terminal itself is rated IP00; the front face carries IP20.
Maximum switching frequency varies by duty: 1 200 cycles/hour at AC-1 (resistive), 1 000 at AC-3 (motor start/run), 750 at AC-2, and 250 at AC-4 (plugging/inching) (–).
This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
The SIRIUS series carries CE, UL, CSA, and CCC certifications per Siemens standard documentation. Specific certificates for this order code are available on request.
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