Siemens SIRIUS power contactor, size S2, 3RT1034-1EL26, 18.5 kW at 500 V AC-3, 10 A at 24 V DC coil, screw terminals, IP20 front.
| 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 | 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, solid or stranded | 2x (0.75 ... 16 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 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 | 75 mm |
| Height | 129 mm |
| Depth | 115 mm |
| Parameter | Value |
|---|---|
| At AC | 15g / 5 ms, 8g / 10 ms |
The Siemens SIRIUS 3RT1034-1EL26 is a size S2 power contactor rated for motor switching at 18.5 kW at 500 V AC-3 and 10 kW at 690 V AC-3.
The contactor measures 129 mm high, 75 mm wide, and 115 mm deep — a standard S2 footprint that fits alongside other SIRIUS components on the same DIN rail. Screw terminals accept solid conductors up to 2x (0.5–1.5 mm²) and stranded up to 2x (0.75–25 mm²).
This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time.
The depth is 115 mm, part of the standard S2 contactor footprint.
The screw terminals accept 2x (0.5–1.5 mm²) solid, 2x (0.75–2.5 mm²) solid, and up to 2x (0.75–4 mm²) solid maximum.
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