The main contact rating is 16 A at 400 V AC-3 (per the evidence, the AC-3 current for the main contacts is listed as 16 A at 400 V — note the evidence shows a range of 16 to 8 A for main contacts, with the 16 A figure at 400 V being the relevant motor rating). The auxiliary contact ratings vary by voltage: 6 A at 24 V DC, 2 A at 48 V DC, 2 A at 60 V DC, 1 A at 110 V DC, 0.9 A at 125 V DC, 0.3 A at 220 V DC, 3 A at 400 V AC, and 0.6 A at 440 V AC. The arcing time is specified at 10 ms, and the switching frequency for AC-4 duty is limited to 300 cycles/h — relevant for plugging or inching applications.
Siemens 3RT2023-1AL24 SIRIUS Power Contactor, Size S0, 24 VD
MPN3RT2023-1AL24
Active
Siemens SIRIUS power contactor, Size S0, 3RT2023-1AL24, 24 VDC coil, screw-type terminals, 45 mm width, 141 mm depth, 85 mm height.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S0 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 8.5 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 1 hp |
| Rated value @ 24 V | 6 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 | 0.25 |
| 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 | gG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA) |
| Short-circuit coordination type 2, fuse | gG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA) |
| Aux. switch short-circuit protection, fuse | gG: 10 A (500 V, 1 kA) |
| Parameter | Value |
|---|---|
| Main circuit connection | screw-type terminals |
| Aux. / control circuit connection | screw-type terminals |
| Conductor cross-section, solid | 1 ... 10 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 | 45 mm |
| Height | 85 mm |
| Depth | 141 mm |
| Parameter | Value |
|---|---|
| At AC | 4 ... 16 ms |
Product details
Frequently asked questions
What is the depth of 3RT2023-1AL24?
The depth is 141 mm.
What wire sizes does 3RT2023-1AL24 accept on the main circuit?
It accepts solid or stranded conductors from 1 to 10 mm².
MPN
3RT2023-1AL24