Siemens 3RT1054-3NB36 SIRIUS Power Contactor, 115A, 55kW, 21-27.3V AC/DC PLC Control, Box/Spring Terminals Original Brand New

Product Overview

The Siemens 3RT1054-3NB36 Power Contactor is engineered for high-performance switching in industrial motor control applications. Designed to handle currents up to 115 A and 55 kW at 400 V, this 3-pole contactor supports both AC (50/60 Hz) and DC voltages (Uc: 21–27.3 V). Equipped with electronic drive, spring-loaded terminals for auxiliary/control circuits, and a box terminal for the main circuit, this contactor ensures efficient and secure connections.

Key Benefit

• High Performance: Rated for AC-3e/AC-3 operations up to 115 A and 55 kW at 400 V.

• Flexible Control: Supports both AC and DC control voltages for wider compatibility.

• Compact and Reliable: Features a PLC-compatible 24 V DC input and compact electronic drive.

• Ease of Wiring: Spring-loaded terminals for control circuits and box terminal for main circuit ensure fast, secure installation.

• Versatile Use: Ideal for industrial automation, motor control, and power distribution systems.

Main Function

• Controls and switches heavy-duty industrial motors and equipment.

• Enables seamless integration with PLC systems via 24 V DC input.

• Provides auxiliary functionality with 2 NO + 2 NC contact configuration.

• Ensures safe and stable connection through spring and box terminals.

Application

• Motor starters in industrial automation

• Power switching in control panels

• HVAC systems

• Conveyor systems

• Water treatment plants

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