3RT1055-6SP36-3PA0 - Siemens
power contactor, AC-3e/AC-3 150 A, 75 kW / 400 V AC (50-60 Hz) / DC Uc: 200-277 V x (0.8-1.1) F-PLC input 24 V DC 3-pole, auxiliary contacts 2 NO + 2 NC permanently mounted drive: electronic main circuit: busbar control and auxiliary circuit: screw terminal
Specifications
Identification
| Parameter | Value |
|---|---|
| Contactor frame size | S6 |
Ratings & Performance
| 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 |
Control & Coil
| Parameter | Value |
|---|---|
| Control supply voltage type | AC/DC |
| Rated value @ 50 Hz | 0.6 |
| Rated value @ 50 Hz | 200 ... 277 V |
Contacts & Poles
| Parameter | Value |
|---|---|
| Main poles | 3 |
| Main NO contacts | 3 |
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
Protection & Coordination
| 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) |
Connection & Mounting
| Parameter | Value |
|---|---|
| Main circuit connection | Connection bar |
| 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 (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²) |
| Conductor cross-section, finely stranded w/ ferrule | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Mounting method | screw fixing |
| Side-by-side mounting | Yes |
Durability
| Parameter | Value |
|---|---|
| Durability (operating cycles, typ.) | 10 000 000 |
| Durability with aux. switch block (cycles, typ.) | 10 000 000 |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Installation altitude, max. | 2 000 m |
Mechanical
| Parameter | Value |
|---|---|
| Width | 120 mm |
| Height | 172 mm |
| Depth | 170 mm |
Specifications
| Parameter | Value |
|---|---|
| At AC | 115 ... 130 ms |
Frequently asked questions
What is the Siemens 3RT1055-6SP36-3PA0 used for?
Buyers need to confirm it fits their motor load and control application before quoting.
What do the 3RT1055-6SP36-3PA0 codes mean in Siemens contactor naming?
Decoding the part number clarifies coil voltage, frame, and PLC interface options for correct selection.
What are the main circuit and coil specifications of the 3RT1055-6SP36-3PA0?
AC-3e 150 A, 75 kW @ 400 V and 24 V DC PLC input drive ratings drive panel design and BOM decisions.
How do I wire the auxiliary contacts on a 3RT1055-6SP36-3PA0?
Permanent 2 NO + 2 NC auxiliary contact wiring is essential for control logic and safety circuits.
What is the difference between the 3RT1055 and 3RT1065 Siemens contactors?
Differentiating frame sizes prevents undersizing a 150 A replacement in retrofit projects.
Where can I buy the 3RT1055-6SP36-3PA0 with stock and current pricing?
Sourcing managers need distributor availability, lead time, and authorized-channel assurance before purchase.