Siemens 3RT2016-2BW42 Power Contactor 9A, 4kW, 48V DC, S00, Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RT2016-2BW42 is a high-performance SIRIUS series power contactor designed for reliable and efficient switching of three-phase motors and other electrical loads. With an AC-3e/AC-3 rating of 9 A and a power capacity of 4 kW at 400 V, this compact device is ideal for a wide range of industrial control applications.

Its 48 V DC control voltage and integrated 1 normally closed (NC) auxiliary contact provide flexibility and control. The innovative spring-loaded terminal technology ensures a secure, vibration-proof, and maintenance-free connection, significantly reducing installation time.

Key Features & Benefit

• Reliable Performance: Engineered by Siemens, a global leader in industrial automation, for consistent and long-lasting operation.
• Compact Design: The S00 size allows for space-saving installation in control cabinets and panels.
• Fast & Secure Wiring: The spring-loaded terminal system eliminates the need for manual tightening, ensuring a permanent and gas-tight connection that is resistant to vibrations.
• Energy Efficient: The 48 V DC control coil minimizes power consumption and heat generation.
• Integrated Auxiliary Contact: The built-in 1 NC auxiliary contact provides immediate feedback on the contactor’s status, simplifying circuit design and diagnostics.
• Versatile Application: Suitable for motor switching (AC-3e/AC-3) and resistive loads, making it a versatile component for various automation systems.
• Standards Compliance: Meets international standards, including AC-3e/AC-3, ensuring global compatibility and safety.

Function

The Siemens 3RT2016-2BW42 functions as an electromagnetically operated switch. When a 48 V DC voltage is applied to its coil, it generates a magnetic field that pulls the main contacts closed, allowing current to flow to the connected load (e.g., an electric motor). When the voltage is removed, a spring forces the contacts back to their open position, interrupting the power. The integrated 1 NC auxiliary contact changes its state in tandem, opening when the main contacts close, which is useful for interlocking or status signaling in control circuits.

Technical Specification

• Product Number: 3RT2016-2BW42
• Product Series: SIRIUS 3RT2
• 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
• Control Supply Voltage: 48 V DC
• Auxiliary Contacts: 1 Normally Closed (NC)
• Connection Type: Spring-loaded terminal
• Size: S00
• Manufacturer: Siemens
• Standards: IEC, UL, CSA

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