Overview
3RT1056-6NP36 is a SIRIUS series three-pole power contactor with fast response (closing delay 35-75ms), standard 24V DC control signal input, supports AC/DC operation, up to 10 million operating cycles, supports ±90° rotation and ±22.5° front and rear tilt installation.
Parameter
| Parameter Item | Value |
|---|---|
| Rated Current | 185 A (AC-3/AC-3e duty) |
| Rated Power | 90 kW (400V AC) |
| Main Contact Configuration | 3-Pole Normally Open (3NO) |
| Auxiliary Contacts | 2 Normally Open (NO) + 2 Normally Closed (NC) |
| Coil Voltage | 200-277V AC/DC |
| Coil Power Consumption | AC: 4.4VA (holding)/280VA (pull-in)
DC: 2.8W (holding)/320W (pull-in) |
| Frame Size | S6 |
| Connection Method | Busbar Connection (main circuit)
Screw Terminals (control/auxiliary circuit) |
| Protection Class | IP00 (front side)/IP20 (with box-type terminal cover) |
FAQ:
1.What is the rated current and adapted motor power of 3RT1056-6NP36 under AC-3 operating conditions?
Under AC‑3 operating conditions, 400V AC (50/60Hz), the rated current of 3RT1056‑6NP36 is 185A, and the power of the three-phase asynchronous motor is 90kW.
2.Does the coil voltage range of 3RT1056-6NP36 support AC/DC dual power input?
Yes, the coil voltage range of the 3RT1056-6NP36 contactor explicitly supports AC/DC dual power input with a voltage range of 200-277V AC/DC.
3.What are the core parameter differences between 3RT1056-6NP36 and the same series 3RT1055-6NP36?
| Parameter | 3RT1055-6NP36 | 3RT1056-6NP36 | Difference Description |
|---|---|---|---|
| Rated Current (AC‑3, 400V) | 150 A | 185 A | 35A increase, suitable for heavier loads |
| Applicable Motor Power (AC‑3, 400V) | 75 kW | 90 kW | 15kW increase |
| Rated Current (AC‑1, 500V) | 185 A | 215 A | 30A increase |
| Applicable Power (AC‑3, 690V) | 132 kW | 160 kW | 28kW increase |
| Coil Voltage | 200‑277V AC/DC | 200‑277V AC/DC | Identical |
| Auxiliary Contacts | 2NO+2NC | 2NO+2NC | Identical |
| Drive Mode | Electronic drive + PLC interface | Electronic drive + PLC interface | Identical |
| Mounting Frame Size | S6 | S6 |
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