Siemens 3RT1054-1AD36 Power Contactor 115 A, 55 kW, 42-48V AC/DC, 2 NO + 2 NC Original Brand New

Overview

The Siemens SIRIUS 3RT1054-1AD36 is a high-performance power contactor engineered for demanding industrial applications. This 3-pole contactor is a crucial component for switching and controlling motors and other electrical loads. With a robust design and a high current rating of 115 A (AC-3e/AC-3), it is perfectly suited for applications up to 55 kW at 400 V. The unique AC (50-60 Hz) / DC operation capability with a control supply voltage of 42-48 V makes it a versatile solution for a wide range of control systems.

This conventional drive model features a box terminal for the main circuit and screw terminals for the control and auxiliary circuits, ensuring secure and reliable connections. The integrated 2 NO + 2 NC auxiliary contacts provide additional flexibility for interlocking and signaling purposes.

Key Benefit

• High Performance: Handles large electrical loads with a 115 A current rating and 55 kW power rating at 400V.
• Versatile Control: Compatible with both AC and DC control voltages (42-48V), reducing inventory and simplifying design.
• Enhanced Reliability: The conventional drive and robust construction ensure a long service life and reliable operation in harsh industrial environments.
• Flexible Connectivity: Box terminals for the main circuit offer strong, secure connections for large cables, while screw terminals for control and auxiliary circuits provide ease of wiring.
• Integrated Functionality: Built-in 2 NO + 2 NC auxiliary contacts eliminate the need for external components, saving space and simplifying installation.
• Safety and Standards: Conforms to international standards, including AC-3e/AC-3, ensuring safe and compliant operation.

Technical Specification

• Product Type: Power Contactor
• Product Number: 3RT1054-1AD36
• Manufacturer: Siemens
• Series: SIRIUS 3RT1
• Number of Poles: 3-pole
• Rated Operational Current (AC-3e/AC-3): 115 A
• Rated Power (AC-3e/AC-3): 55 kW at 400 V
• Control Supply Voltage (Uc): 42-48 V (AC 50-60 Hz / DC)
• Auxiliary Contacts: 2 NO (Normally Open) + 2 NC (Normally Closed)
• Drive Type: Conventional
• Main Circuit Connections: Box Terminal
• Control & Auxiliary Circuit Connections: Screw Terminal

Function

• Motor Switching: Efficiently switches three-phase motors.
• Load Control: Used for controlling various resistive, inductive, and capacitive loads.
• Interlocking and Signaling: The auxiliary contacts can be used for electrical interlocking in control circuits or for providing status feedback to a PLC or HMI.
• Safety Disconnection: Can be integrated into safety circuits to disconnect power to machinery in an emergency.

Application

• Industrial automation
• Motor control centers (MCCs)
• Pump control systems
• HVAC systems
• Conveyor systems
• Heavy machinery

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