Siemens SIRIUS, power contactor, size S2, 3RT1035-1AC20-ZX95, 18.5 kW at 400 V AC-2, 690 V 11.4 kW, screw terminals, 55 mm width.
| Parameter | Value |
|---|---|
| Contactor frame size | S2 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 35 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 22 kW |
| Rated value @ 690 V | 11.4 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 | 24 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 | 55 mm |
| Height | 112 mm |
| Depth | 115 mm |
| Parameter | Value |
|---|---|
| At AC | 7 ... 20 ms |
Rated for 50/60 Hz operation with a voltage tolerance range of 0.8–1.1 x rated at 50 Hz and 0.85–1.1 at 60 Hz. Coil draws 24 V at 50/60 Hz. The contactor handles switching frequencies up to 1,200 ops/h in AC-1, 1,000 ops/h in AC-3, and 300 ops/h in AC-4. Pollution degree 3 (conductive pollution) — suitable for industrial control panels without sealed enclosures.
Submit an RFQ through this listing. The part is sourced to order; pricing and stock are confirmed at quote time.
The 3RT1026-1AB00 is a smaller frame (S0 vs S2) with lower current ratings — it won't drop into the same motor load without derating. For a direct swap in size S2, the 3RT5035-1AH00 or 3RT5036-1AP00 are closer peers, but verify the coil voltage and terminal type match your panel.
No — the 3RT1026-1AB00 is size S0 (45 mm wide) while this is size S2 (55 mm wide). The footprint and terminal spacing differ; you'll need to adjust the DIN rail layout and possibly the wiring.
Siemens typically provides RoHS, REACH, and IEC/EN declarations for the SIRIUS series. Specific certificates (UL, CSA) should be confirmed at quote time.
No related articles