Siemens SIRIUS 3RT1054-1SP36-3PA0 Power Contactor 115 A, 55 kW, Hybrid Control, F-PLC Input Original Brand New

Overview

The Siemens SIRIUS 3RT1054-1SP36-3PA0 is a high-performance power contactor engineered for efficient and reliable switching of motors and other industrial loads. This robust 3-pole contactor is rated for 115 A (AC-3e/AC-3) and 55 kW at 400 V, making it ideal for demanding applications. Its innovative hybrid control circuitry accepts both AC (50-60 Hz) and DC power (200-277 V) with a wide tolerance, ensuring exceptional versatility.

The integrated F-PLC input (24 V DC) allows for direct and safe control from a failsafe PLC, streamlining your automation processes. With 2 NO + 2 NC permanently mounted auxiliary contacts and a combination of box and screw terminals, the 3RT1054-1SP36-3PA0 offers seamless integration and high-level functionality for modern industrial systems.

Key Features & Benefit

• High Current and Power Ratings: Handles up to 115 A and 55 kW, suitable for heavy-duty motor control applications.
• Flexible Hybrid Control: The electronic drive supports a wide range of AC (50-60 Hz) and DC (200-277 V) control voltages, reducing the need for multiple variants and simplifying inventory.
• F-PLC Input Integration: The dedicated 24 V DC F-PLC input enables direct connection to failsafe PLCs, enhancing safety and control reliability in critical systems.
• Comprehensive Auxiliary Contacts: Pre-installed with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing ample signaling and interlocking options without additional components.
• Durable and Reliable: Built with high-quality components for long service life and dependable performance in harsh industrial environments.
• User-Friendly Terminals: Features main circuit box terminals for robust power connections and screw terminals for the control and auxiliary circuits, ensuring secure and easy wiring.
• Space-Saving Design: The compact design of the SIRIUS family allows for high-density panel layouts.

Technical Specification

• Product Number: Siemens 3RT1054-1SP36-3PA0
• Type: Power Contactor
• Poles: 3-pole
• Rated Current (AC-3e/AC-3): 115 A
• Rated Power: 55 kW at 400 V
• Control Supply Voltage (Uc): AC (50-60 Hz) / DC 200-277 V x (0.8-1.1)
• F-PLC Input: 24 V DC
• Auxiliary Contacts: 2 NO + 2 NC (permanently mounted)
• Main Circuit Terminals: Box Terminal
• Control/Auxiliary Circuit Terminals: Screw Terminal
• Drive Type: Electronic

Function

The Siemens 3RT1054-1SP36-3PA0 power contactor serves as an electromagnetic switch, used for the remote control of motors, heaters, lighting systems, and other electrical loads. When the control voltage is applied to its electronic drive, the main contacts close, allowing power to flow to the connected equipment. The F-PLC input provides a dedicated, safe interface for modern automation systems.

The built-in auxiliary contacts can be used for feedback signals to the control system (e.g., “contactor is on”), or for interlocking functions to prevent unsafe conditions. The combination of its robust design and advanced features makes it a critical component for reliable and safe motor control.

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