3RT1055-2AM36 - Siemens
power contactor, AC-3e/AC-3 150 A, 75 kW / 400 V AC (50-60 Hz) / DC Uc: 200-220 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 | S6 |
| Parameter | Value |
|---|---|
| Rated operational current, AC-12, max. | 10 A |
| Rated operational current, AC-4 @ 400 V | 132 A |
| Rated value @ 400 V | 3 A |
| Rated value @ 500 V | 2 A |
| Rated value @ 690 V | 1 A |
| Rated value @ 230 V | 30 hp |
| 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 | 0.8 |
| Rated value @ 50 Hz | 200 ... 220 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: 355 A (690 V, 100 kA) |
| Short-circuit coordination type 2, fuse | gG: 315 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 315 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 | 120 mm |
| Height | 172 mm |
| Depth | 170 mm |
| Parameter | Value |
|---|---|
| At AC | 40 ... 60 ms |
Frequently asked questions
What is the coil voltage and tolerance of the Siemens 3RT1055-2AM36?
All six technical personas must confirm the 200-220V AC/DC coil before wiring, panel build, or PLC integration.
Is the 3RT1055-2AM36 a direct replacement for an obsolete Sirius 3RT10 contactor?
MRO and maintenance teams need form-fit-function certainty to avoid mechanical/auxiliary mismatch during emergency replacement.
Where can I buy a genuine Siemens 3RT1055-2AM36 with stock and traceability?
Sourcing buyers and brokers must verify authorized channel and OEM certificates to mitigate counterfeit and allocation risk.
What are the AC-3e and short-circuit interrupting ratings at 400V for the 3RT1055-2AM36?
Power distribution and safety engineers need kAIC, trip coordination, and selectivity data before approving the contactor in a panel.
How do the spring-loaded auxiliary and control terminals wire on the 3RT1055-2AM36?
Panel builders and PLC engineers require torque, wire gauge, and terminal layout to produce accurate drawings and avoid mis-wiring.
Does the 3RT1055-2AM36 meet functional safety requirements (mirror contact, SIL/PL, PFD)?
Safety engineers need IEC 60947 mirror-contact confirmation and proof-test interval data to justify use in safety circuits.