3RT1076-2AF36 - Siemens
power contactor, AC-3e/AC-3 500 A, 250 kW / 400 V AC (50-60 Hz) / DC Uc: 110-127 V 3-pole, auxiliary contacts 2 NO + 2 NC drive: conventional main circuit: busbar control and auxiliary circuit: spring-loaded terminal
Specifications
| Parameter | Value |
|---|---|
| Contactor frame size | S12 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 430 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/DC |
| Rated value @ 50 Hz | 0.9 |
| Rated value @ 50 Hz | 110 ... 127 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: 630 A (690 V, 100 kA) |
| Short-circuit coordination type 2, fuse | gG: 500 A (690 V, 100 kA), aM: 500 A (690 V, 50 kA), BS88: 500 A (415 V, 50 kA) |
| Aux. switch short-circuit protection, fuse | gG: 10 A (500 V, 1 kA) |
| Parameter | Value |
|---|---|
| Main circuit connection | Connection bar |
| Aux. / control circuit connection | spring-loaded terminals |
| Conductor cross-section, solid | 2x (0.25 ... 2.5 mm²) |
| Conductor cross-section, solid or stranded | 2x (0,25 ... 2,5 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.25 ... 1.5 mm²) |
| Mounting method | screw fixing |
| 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 | 160 mm |
| Height | 214 mm |
| Depth | 225 mm |
| Parameter | Value |
|---|---|
| At AC | 60 ... 100 ms |
Frequently asked questions
What is the coil voltage of the Siemens 3RT1076-2AF36?
Buyers must match the 110-127 V AC/DC coil to their panel control supply before ordering.
What does AC-3e and AC-3 mean on the 3RT1076-2AF36?
Clarifies the switching duty rating so engineers confirm suitability for their motor load application.
What are the auxiliary contacts on the 3RT1076-2AF36 configured as?
Determines whether the contactor fits the I/O count in the control schematic without extra add-on blocks.
What is the horsepower and kilowatt rating of the 3RT1076-2AF36 at 400 V?
Verifies the 250 kW / 500 A rating aligns with the motor being switched in the application.
What is the difference between the Siemens 3RT1076-2AF36 and the 3RT1076-2AF35?
Helps buyers select the correct coil variant and avoid substituting the wrong model.
Where can I buy the 3RT1076-2AF36 with current stock and lead time?
Direct path to conversion for purchasing teams needing authorized-source quotes and availability.