Siemens 3RT1054-3AR38-0PR0 Power Contactor 115A, 55kW, 440-480V AC/DC with Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RT1054-3AR38-0PR0 is a high-performance SIRIUS 3RT power contactor designed for reliable switching of motors and other industrial loads up to 115A. This robust 3-pole contactor is rated for 55 kW at 400 V and features a wide operating voltage range of 440-480V for both AC (50-60 Hz) and DC control circuits, offering maximum flexibility in diverse applications.

Its compact design and durable construction ensure long-term operational stability and efficiency. The contactor comes equipped with a right-side auxiliary switch, model 3RH1921-2DE11, expanding its functionality for control and signaling purposes.

Key Benefit

• Exceptional Performance: Rated for 115 A (AC-3e/AC-3) and 55 kW, this contactor handles demanding motor control tasks with ease and reliability.
• Versatile Control: The wide-range 440-480V AC/DC control voltage allows for integration into a variety of power and control systems, reducing the need for multiple contactor types.
• Time-Saving Installation: Main circuit connections are made via secure box terminals, while the control and auxiliary circuits utilize innovative spring-loaded terminals. This feature drastically reduces wiring time and ensures a vibration-proof, maintenance-free connection.
• Integrated Auxiliary Switch: The pre-installed 3RH1921-2DE11 auxiliary switch provides additional signaling and interlocking capabilities, simplifying your circuit design.
• Robust and Durable: Built with high-quality materials, the Siemens 3RT1054-3AR38-0PR0 is designed for long service life in harsh industrial environments.

Function

• Motor Switching: Safely and efficiently switches motors and other resistive or inductive loads on and off.
• Circuit Control: Acts as a key component in control circuits for automation, providing remote control and interlocking functionality.
• Load Protection: Works in conjunction with overload relays to protect motors and equipment from overcurrents.
• Signaling: The integrated auxiliary contacts can be used to signal the ON/OFF status of the contactor to a PLC or HMI.

Technical Specification

• Product Number: Siemens 3RT1054-3AR38-0PR0
• Type: Power Contactor
• Poles: 3-pole
• Rated Current (AC-3e/AC-3): 115 A
• Rated Power (400V): 55 kW
• Control Voltage (Uc): 440-480 V AC (50-60 Hz) / DC
• Drive Type: Conventional
• Main Circuit Connection: Box Terminal
• Control & Auxiliary Circuit Connection: Spring-Loaded Terminal
• Auxiliary Switch: Right-side, model 3RH1921-2DE11

Application

The Siemens 3RT1054-3AR38-0PR0 is ideal for use in:

• Industrial automation and control systems
• Pump control panels
• HVAC systems
• Conveyor systems
• Machine tools
• General industrial motor control applications

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