Siemens SIRIUS 3RT2017-2FF48-0KT1 Power Contactor – 12A, 5.5kW, 110V DC, 2 NO + 3 NC, Spring-Loaded Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT2017-2FF48-0KT1 is a high-performance 3-pole power contactor designed for reliable and efficient switching of electrical loads. This compact and robust device is part of the renowned Siemens SIRIUS modular system, ensuring seamless integration and enhanced functionality in industrial control applications. With a rated current of 12 A and a power rating of 5.5 kW at 400 V, it is an ideal solution for a wide range of applications, including motor control and other demanding inductive loads (AC-3e/AC-3). The integrated diode within the 110 V DC operating coil ensures reliable and long-lasting performance by protecting against voltage spikes.

Key Features & Benefits:

• High Performance: Optimized for AC-3e/AC-3 applications, handling up to 12 A and 5.5 kW at 400 V.
• Integrated Diode: The 110 V DC operating coil features an integrated diode, providing enhanced protection and a longer service life.
• Versatile Auxiliary Contacts: Equipped with 2 NO (normally open) and 3 NC (normally closed) auxiliary contacts, including a 3RH2921-2DA11 (1 NO + 1 NC) block mounted on both the left and right sides. This configuration provides exceptional flexibility for complex control circuits.
• Secure Spring-Loaded Terminals: The innovative spring-loaded terminal system offers fast, reliable, and vibration-resistant connections, reducing installation time and maintenance needs.
• Compact Size S00: The small S00 frame size allows for space-saving installation in control cabinets, making it perfect for applications where panel space is at a premium.
• Modular Design: As part of the Siemens SIRIUS family, it is compatible with a wide range of accessories and modules, offering scalability and customization.

Function

The Siemens 3RT2017-2FF48-0KT1 power contactor is used to switch electrical power circuits on and off. It is particularly well-suited for controlling electric motors and other power-intensive loads. The device’s coil, when energized by a 110 V DC voltage, creates an electromagnetic field that closes the main contacts, allowing current to flow to the connected load. The integrated auxiliary contacts provide status feedback and enable interlocking in complex control systems. The spring-loaded terminals ensure a gas-tight connection, preventing wire pull-out and ensuring continuous operation in high-vibration environments.

Application

• Motor control for pumps, fans, and compressors
• HVAC systems
• Industrial machinery
• Building automation
• Material handling systems
• Power distribution circuits

Technical Specification

• Product Type: Power Contactor
• Product Number: 3RT2017-2FF48-0KT1
• Rated Operational Current (AC-3e/AC-3): 12 A
• Rated Operational Power (AC-3e/AC-3): 5.5 kW @ 400 V
• Number of Poles: 3-pole
• Coil Voltage: 110 V DC with integrated diode
• Auxiliary Contacts: 2 NO + 3 NC (including 3RH2921-2DA11 mounted left and right)
• Terminal Type: Spring-loaded terminal
• Size: S00
• Manufacturer: Siemens

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