Siemens SIRIUS Size S3 contactor, order code 3RT2446-1AG20, 70 mm width, screw and snap-on DIN rail mounting, auxiliary switch included, current production.
| Parameter | Value |
|---|---|
| Contactor frame size | S3 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| 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 | 0.35 |
| Rated value @ 50 Hz | 110 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 | gG: 250 A (690 V,100 kA) |
| Short-circuit coordination type 2, fuse | gR: 250 A (690 V, 100 kA) |
| Aux. switch short-circuit protection, fuse | gG: 10 A (500 V, 1 kA) |
| Parameter | Value |
|---|---|
| Main circuit connection | box terminal |
| Aux. / control circuit connection | screw-type terminals |
| Conductor cross-section, solid | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Conductor cross-section, solid or stranded | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Mounting method | screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715 |
| 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 | 70 mm |
| Height | 140 mm |
| Depth | 152 mm |
| Parameter | Value |
|---|---|
| At AC | 10 ... 21 ms |
The 3RT2446-1AG20: The integrated auxiliary switch carries rated currents that drop with voltage: 10 A at 24 V AC, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. At 600 V it still switches 0.1 A.
The coil terminals use screw-type connections. The main power circuit accepts stranded conductors from 6 to 70 mm². Auxiliary wiring takes solid or stranded 0.5–1.5 mm² or 0.75–2.5 mm². Depth is 152 mm, height 140 mm.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
The depth is 152 mm, with a width of 70 mm and height of 140 mm.
The auxiliary terminals accept solid or stranded conductors: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²).
Both are Size S3 contactors from the SIRIUS family, sharing the same 70 mm width and DIN-rail mounting pattern. The auxiliary contact configuration and coil voltage differ — verify your control voltage and aux contact count before substituting.
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