Siemens 3RT2016-2QB42 SIRIUS Power Contactor, 9A, 4kW, 24V DC Coil, Spring-Loaded Terminal, S00 Frame Original Brand New

Overview

The Siemens 3RT2016-2QB42 is a compact, high-performance SIRIUS 3RT20 power contactor engineered for switching motors and other resistive loads in industrial control panels. Part of the latest generation of SIRIUS switching devices, this 3-pole contactor is rated for $9\text{ A}$ (AC-3e/AC-3) and $4\text{ kW}$ at $400\text{ V}$.

It features a reliable $24\text{ V DC}$ operating coil with an extended operating range ($0.7$ to 1.25∗Uc​), making it highly suitable for connection to PLC outputs. Crucially, it comes with a varistor plugged on for coil surge suppression, protecting sensitive control electronics from switching transients. The modern spring-loaded terminals ensure fast, reliable, and vibration-proof wiring.

Key Specifications & Features

• Product Number: 3RT2016-2QB42
• Contactor Series: SIRIUS 3RT20
• Rated Operational Current (AC-3e/AC-3): $9\text{ A}$
• Motor Power (400V): $4\text{ kW}$
• Number of Poles: 3-pole (Main Circuit)
• Coil Voltage: $24\text{ V DC}$
• Coil Operating Range: 0.7−1.25∗Uc​ (Suitable for PLC)
• Surge Suppression: Integrated Varistor plugged on
• Auxiliary Contacts: $1\text{ NC}$ (Normally Closed)
• Terminal Type: Spring-Loaded Terminal (Fast & maintenance-free wiring)
• Frame Size: S00 (Compact design)
• Note: No additional auxiliary switch block can be added.

Benefit

• Reliable Protection: The integrated varistor effectively suppresses switching surges, significantly extending the lifespan of the contactor coil and protecting upstream electronics (e.g., PLCs).
• Time-Saving Wiring: Spring-loaded terminals allow for quick, easy, and secure connection without the need for constant retightening, reducing maintenance costs and downtime.
• Space Optimization: The compact S00 frame size is ideal for applications where panel space is at a premium, without compromising performance.
• Global Standard: Compliant with AC-3e/AC-3 standards, ensuring compatibility and approval for worldwide use in motor control applications.

Typical Functions & Applications

The 3RT2016-2QB42 is primarily used for:

1. Motor Switching: Safely starting and stopping 3-phase AC motors up to $4\text{ kW}$.
2. Load Switching: Controlling resistive loads, heating elements, and lighting systems.
3. Automation Systems: Perfect for integration into automation and control systems using $24\text{ V DC}$ logic (e.g., connection to SIMATIC S7 or other PLCs).

Compatibility & Related Products

This S00 frame contactor is a core component within the SIRIUS modular system. It is designed to work seamlessly with:

• SIRIUS 3RV2 Motor Starter Protectors
• SIRIUS 3RU2 Thermal Overload Relays

For more of our extensive inventory of Siemens SIRIUS switching devices and industrial automation products, visit Turll today!