Siemens 3RT2016-2AP61 SIRIUS Power Contactor, 9A, 4kW, 220/240V AC, S00 Original Brand New

Overview: Siemens SIRIUS 3RT2 Power Contactor

The Siemens 3RT2016-2AP61 is a high-performance, compact power contactor from the SIRIUS 3RT2 series (Size S00). Designed for efficient switching of motors and other industrial loads, this 3-pole contactor is rated for $9\text{ A}$ (AC-3e/AC-3) and a power output of $4\text{ kW}$ at $400\text{ V}$.

Its key features include a dual-frequency control coil ($220\text{ V AC},50\text{ Hz}/240\text{ V AC},60\text{ Hz}$), a built-in $1\text{ NO}$ auxiliary contact, and robust spring-loaded terminals for fast, vibration-proof wiring. Ideal for motor control and protection applications in harsh industrial environments.

Benefits & Advantages

1. High Reliability: Part of the trusted Siemens SIRIUS 3RT2 family, ensuring long-term operational stability and reduced downtime.
2. Fast, Secure Wiring: Spring-loaded terminals allow for quick, tool-free installation and provide a gas-tight, vibration-resistant connection, saving installation time and maintenance costs.
3. Space-Saving Design: The compact Size S00 footprint is perfect for mounting in control cabinets with limited space.
4. Versatile Application: Suitable for switching 3-phase motors up to $4\text{ kW}$ and general resistive loads, meeting both AC-3 and the updated AC-3e efficiency standards.
5. Integrated Auxiliary Contact: The built-in $1\text{ NO}$ contact simplifies control circuit design and reduces the need for external auxiliary contact blocks.

Function

The Siemens 3RT2016-2AP61 functions as an electromechanical switching device (contactor) designed to safely and reliably switch a high-current power circuit. When the coil is energized by the $220\text{ V AC}/240\text{ V AC}$ control voltage, the main 3-pole contacts close, providing power to the connected load (e.g., an electric motor). Simultaneously, the integrated $1\text{ NO}$ auxiliary contact closes, providing feedback or enabling subsequent control circuit steps. De-energizing the coil opens all contacts.

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