3RT1056-2NB36 – Siemens SIRIUS 3RT 3-Pole Motor Contactor, 185 A, 90 kW, 400 V, 21-27.3 VAC/VDC Coil, 2NO+2NC

3RT1056-2NB36

3RT1056-2NB36 is a Siemens SIRIUS 3RT series 3-pole motor contactor designed for demanding industrial motor control applications. This contactor delivers reliable switching for motors up to 90 kW at 400 V, with a rated operational current of 185 A and a versatile 21-27.3 VAC/VDC coil for flexible control circuit integration. Engineered for durability and ease of installation, the 3RT1056-2NB36 features bar connections for secure power wiring, spring-type terminals for auxiliary contacts, and a compact S6 frame size. The contactor includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, supporting a wide range of control logic requirements. It is suitable for both AC and DC operation and is designed for vertical mounting with screw fixing.

• Manufacturer: Siemens
• Series: SIRIUS 3RT
• Frame Size: S6
• Rated Operational Current: 185 A
• Rated Power: 90 kW at 400 V
• Rated Voltage: 400 V
• Coil Voltage: 21-27.3 VAC/VDC
• Poles: 3
• Auxiliary Contacts: 2NO + 2NC
• Mounting Type: Vertical, Screw Fixing
• Connection Type: Bar Connections, Spring Terminals
• Application: Motor Control

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Specifications

• Part Number: 3RT1056-2NB36
• Manufacturer : Siemens
• Brand : Siemens
• Category : Motor Control
• Item Subcategory : Contactor
• Family : Sirius
• Type : 3RT10
• Voltage : 600
• Amperage : 185
• Phase : 3
• Poles : 3
• Coil Voltage Maximum : 26
• Coil Voltage Minimum : 23

Product Data

• UPC : 088762103966
• GTIN : 00887621039660
• Weight : 8