Siemens 3RT2016-1BB44 SIRIUS Power Contactor, 9A, 4kW, 24V DC, 1 NC Auxiliary Contact Original Brand New

Overview

The Siemens 3RT2016-1BB44 is a high-performance SIRIUS power contactor designed for efficient and reliable switching of motors and other electrical loads. This compact and robust device is part of the SIRIUS 3RT2 series, renowned for its longevity, reliability, and excellent performance in industrial environments. With a 3-pole design, it’s suitable for AC-3e/AC-3 applications, handling a rated current of 9A and a power output of 4 kW at 400V. The 24V DC operating coil ensures low power consumption and versatile control options.

Key Features & Benefit

• Reliable Performance: Engineered for AC-3e/AC-3 applications, ensuring stable and consistent operation for motor control up to 4 kW.
• Compact Design: The S00 size makes it space-efficient, ideal for installations with limited panel space.
• Versatile Auxiliary Contacts: Includes a built-in 1 NC (Normally Closed) auxiliary contact for feedback, interlocking, and control circuit functions. The auxiliary switch is removable, offering flexibility for maintenance and configuration.
• Secure Connections: Equipped with robust screw terminals that provide a secure and reliable connection for wires, minimizing the risk of faults and ensuring long-term operational integrity.
• Energy Efficient: The 24V DC coil voltage reduces power consumption, making it an eco-friendly choice for control systems.
• Durable Construction: Built with high-quality materials to withstand harsh industrial conditions, offering a long service life and reduced maintenance.
• Easy Integration: Compatible with the wider Siemens SIRIUS modular system, allowing for seamless integration with other components like overload relays and circuit breakers.

Function

The Siemens 3RT2016-1BB44 functions as an electromagnetically operated switch for controlling power to a load, typically an electric motor. When the 24V DC control signal is applied to the coil, the contactor’s main contacts close, allowing power to flow to the motor. The integrated 1 NC auxiliary contact changes state (opens) when the main contacts close, providing a signal to the control circuit indicating the contactor’s status. This is crucial for safety interlocks, status monitoring, and automated control sequences.

Technical Specification

• Product Number: 3RT2016-1BB44
• Rated Operational Current (AC-3e/AC-3): 9 A
• Rated Power (AC-3e/AC-3): 4 kW at 400 V
• Number of Poles: 3-pole
• Coil Voltage: 24 V DC
• Auxiliary Contacts: 1 NC (Normally Closed)
• Terminal Type: Screw terminal
• Size: S00
• Special Features: Removable auxiliary switch

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