Siemens 3RT1054-3NF36 Power Contactor 115 A, 55 kW, AC-3/AC-3e, 96–127 V Coil, 3-Pole Original Brand New

Overview

The Siemens 3RT1054-3NF36 is a high-performance industrial power contactor engineered for reliable and efficient motor switching applications. Designed for durability and precision, this contactor supports AC-3e/AC-3 utilization categories, delivers 115 A operational current, and handles motors up to 55 kW at 400 V. Its robust construction, electronic drive, and advanced terminal design ensure seamless integration into modern automation systems.

Built for versatility, the 3RT1054-3NF36 operates on AC (50–60 Hz) and DC control voltage ranges of 96–127 V, with a PLC-compatible 24 V DC input. The combination of box terminals for the main circuit and spring-loaded terminals for logic/auxiliary circuits ensures secure wiring and fast installation.

Key Benefit

• High switching performance for demanding industrial motor applications

• Long service life with high mechanical and electrical endurance

• Fast and secure wiring thanks to innovative terminal technology

• PLC-ready design for seamless integration into automation systems

• Reliable operation in both AC and DC coil control environments

• Reduced maintenance downtime with robust, vibration-resistant structure

Main Features

Electrical Performance

• Utilization Category: AC-3e / AC-3

• Operational Current: 115 A

• Motor Power Rating: 55 kW at 400 V

• Control Voltage: AC (50–60 Hz) / DC Uc: 96–127 V

• PLC Input: 24 V DC

Design & Construction

• 3-pole contactor suitable for a variety of switching tasks

• Auxiliary Contacts Included: 2 NO + 2 NC

• Electronics-driven coil for stable and energy-efficient operation

• Main Circuit Terminals: Box terminal (excellent conductor stability)

• Control & Auxiliary Terminals: Spring-loaded (quick, tool-free connection)

Application

• Industrial motor control

• Conveyor systems

• Pumps, fans, compressors

• Automation and PLC-driven equipment

• Manufacturing and processing systems

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