Siemens SIRIUS 3RT2016-2HB42 Power Contactor 9A, 4kW, 24V DC, 1NC Auxiliary, Spring Terminal, Size S00 Original Brand New

Overview

The Siemens 3RT2016-2HB42 Power Contactor from the SIRIUS 3RT20 series is a compact and high-performance switching device, engineered for reliable control of electric motors and other loads up to 9 A at AC-3/AC-3e. Specifically designed for modern industrial automation, this 3-pole contactor features a 24V DC coil with an extended operating range for enhanced stability, making it perfectly suitable for direct connection to PLC outputs (programmable logic controllers). The utilization of spring-loaded terminals ensures fast, robust, and vibration-proof wiring, significantly reducing installation and maintenance time.

Benefit

• PLC Compatibility: The low consumption 24V DC coil and integrated suppressor diode are optimized for direct control by sensitive PLC outputs, simplifying the control circuit design.
• Fast & Secure Wiring: Spring-loaded terminals offer a fast, maintenance-free, and highly vibration-proof connection, ideal for harsh industrial environments.
• Space-Saving Design: Its compact Size S00 footprint allows for high-density mounting in control cabinets, maximizing panel space.
• High Reliability: Part of the established Siemens SIRIUS modular system, ensuring exceptional contact reliability and a long mechanical service life (typically 30 million operating cycles).
• Global Compliance: Manufactured to meet international standards (IEC, UL/CSA), making it suitable for global application.

Function and Application

The 3RT2016-2HB42 functions as an electromechanical switch used to control high-current circuits with a low-power signal. It is primarily used for:

1. Motor Switching: Starting, stopping, and reversing (in conjunction with a second contactor) of 3-phase AC motors up to 4 kW.
2. Coupling Contactor: Ideal for use as an interface between a central controller (PLC) and the load.
3. Switching Resistive Loads: Controlling heating elements, lighting, and other non-inductive loads (Rated current Ie​ at AC-1, 400V is 22 A).

Note on Auxiliary Contacts: This specific model includes an integrated 1 NC auxiliary contact for feedback or interlocking purposes. It is important to note that no additional auxiliary switch blocks can be added to this specific version.