Siemens SIRIUS 3RT2017-1HB41 Power Contactor 12A, 5.5kW, 24V DC, 1NO Aux, S00 Original Brand New

Overview

The Siemens SIRIUS 3RT2017-1HB41 is a high-performance, 3-pole power contactor from the SIRIUS 3RT2 series, designed for reliably switching motors and other resistive loads up to 5.5 kW at 400 V. Engineered for modern control systems, it features a low-power 24 V DC coil, making it ideal for direct control from PLC (Programmable Logic Controller) outputs. Its compact size S00 and integrated auxiliary contact (1 NO) optimize panel space and wiring simplicity.

Key Specification and Features

• Product Number: 3RT2017-1HB41
• Brand/Series: Siemens SIRIUS 3RT2 Contactor
• Contactor Type: Power Contactor (Coupling Contactor for PLC)
• Rated Operational Current (AC-3e/AC-3): 12 A (at 400 V)
• Rated Operational Power (AC-3e/AC-3): 5.5 kW (at 400 V)
• Number of Poles: 3-pole
• Control Supply Voltage: 24 V DC (with wide tolerance: 0.7−1.25×Uc​)
• Auxiliary Contacts: 1 Normally Open (1 NO)
• Terminals: Screw Terminal connection
• Frame Size: S00
• Special Feature: Suitable for direct control by PLC outputs (low coil power consumption).
• Note: No auxiliary switch can be added to this specific unit.

Benefit

• PLC Integration: The low power 24 V DC coil draws minimal current, allowing for direct and reliable operation via standard PLC output cards, reducing the need for intermediate relays.
• Space-Saving Design: The compact S00 frame size is perfect for control cabinets with limited space, contributing to a smaller overall footprint.
• Reliable Performance: A mechanical service life of up to 30 million operating cycles ensures long-term reliability in demanding industrial applications.
• Simplified Wiring: Integrated 1 NO auxiliary contact and robust screw terminals make installation and maintenance straightforward.
• Global Standard: Part of the globally recognized Siemens SIRIUS family, ensuring quality, compatibility, and availability.

Function & Application

The 3RT2017-1HB41 functions as an electrically controlled switch for loads in industrial control systems.

• Motor Switching: Ideal for switching 3-phase AC motors up to 5.5 kW.
• Resistive Loads: Suitable for switching heating, lighting, and other resistive AC loads.
• PLC-Controlled Systems: Specifically designed as a coupling element for interfacing lower power PLC outputs to higher power loads.
• Industrial Automation: Used in machinery, conveyor systems, HVAC, and pump control panels.

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