3RT1056-6NP36 - Siemens
power contactor, AC-3e/AC-3 185 A, 90 kW / 400 V AC (50-60 Hz) / DC Uc: 200-277 V PLC input 24 V DC 3-pole, auxiliary contacts 2 NO + 2 NC 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 | 160 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 | 80 ... 90 ms |
Frequently asked questions
What is the coil voltage, PLC input current, and control power consumption for the 3RT1056-6NP36?
Panel builders and calibration engineers must confirm the 200-277 V AC/DC UC and 24 V DC PLC input match cabinet and PLC outputs before ordering.
What are the AC-3/AC-3e ratings, electrical switching life, and permissible switching frequency?
Design and motion engineers need 185 A / 90 kW @ 400 V life curves to size contactor duty cycles and compare against competitors.
What auxiliary contact blocks, terminal accessories, and busbar/link bar kits fit the 3RT1056-6NP36?
Panel builders waste time hunting Sirius accessory part numbers; surfacing 2 NO + 2 NC aux block and busbar options reduces wiring errors.
Is the 3RT1056-6NP36 still active, and what is its lifecycle status, successor, or FFF replacement?
Sourcing, LTB, and MRO managers need early warning of EOL/PCN and a qualified form-fit-function alternate to avoid allocation-driven downtime.
What is the SIL/PL rating, mirror-contact compliance, and B10d/proof-test data for the 3RT1056-6NP36?
Functional safety engineers require IEC 61508 SIL and ISO 13849 PL claims plus certificate access before approving the contactor in safety functions.
What is the short-circuit withstand (Icu/Ics), trip-curve coordination, and recommended upstream breaker such as 3VA?
Power distribution engineers must validate discrimination and kAIC against the upstream breaker to meet coordination study requirements.