Siemens SIRIUS 3RT2016-2BF42 Power Contactor AC-3e/AC-3, 9A, 4kW, 110V DC Coil, 1NC Auxiliary Contact, Spring-Loaded Original Brand New

Overview

The Siemens SIRIUS 3RT2016-2BF42 is a high-performance power contactor designed for reliable switching of motors and other electrical loads. This compact and robust device from the SIRIUS 3RT2 family is engineered to meet modern industrial demands, offering exceptional efficiency and a long service life. With its 3-pole design, a rated operational current of 9 A at 400 V, and a powerful 110 V DC coil, it’s an ideal solution for a wide range of industrial applications. The integrated 1 NC auxiliary contact provides additional control and feedback functionality, while the innovative spring-loaded terminals ensure fast, secure, and vibration-resistant wiring without the need for tools.

Key Benefit

• High Efficiency & Reliability: Optimized for AC-3e/AC-3 applications, ensuring reliable motor switching and long-term performance.
• Space-Saving Design: The compact S00 size allows for high-density installations in control cabinets, maximizing panel space.
• Fast & Secure Wiring: Spring-loaded terminals offer a quick, tool-free connection, significantly reducing installation time and providing a reliable, maintenance-free contact.
• Versatile Application: Suitable for a wide variety of industrial uses, including motor control, lighting circuits, and resistive loads.
• Integrated Auxiliary Contact: The built-in 1 NC auxiliary contact simplifies wiring for control circuits and status monitoring.
• Enhanced Safety: Meets international standards for safe and reliable operation in demanding environments.

Technical Specification

• Product Number: 3RT2016-2BF42
• Product Type: Power Contactor
• Product Family: SIRIUS 3RT2
• Rated Operational Current (Ie): 9 A (for AC-3e/AC-3 at 400 V)
• Operational Power (Pe): 4 kW (at 400 V)
• Number of Poles: 3
• Control Supply Voltage: 110 V DC
• Auxiliary Contacts: 1 NC (Normally Closed)
• Connection Type: Spring-Loaded Terminals
• Size: S00
• Mounting: Standard DIN rail or screw mounting
• Operating Temperature: -25 to +60 °C

Function

The Siemens 3RT2016-2BF42 functions as an electromagnetically operated switching device. When the 110 V DC control voltage is applied to the coil, it generates a magnetic field that pulls the main contacts together, allowing power to flow to the connected load (e.g., a 4 kW motor). When the control voltage is removed, a spring forces the main contacts open, interrupting the power. The 1 NC auxiliary contact operates in reverse; it is normally closed and opens when the main contacts are closed, providing a clear signal for the control circuit that the contactor is energized.

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