Siemens 3RT2016-2AH01 Power Contactor, 9A, 4kW, 48V AC, Spring Terminal Original Brand New

Overview 

The Siemens 3RT2016-2AH01 is a high-performance 3-pole power contactor from the globally recognized SIRIUS 3RT2 series. Engineered for switching motors and other industrial loads, this contactor provides a highly reliable, compact, and efficient solution for your electrical control systems. It is rated for 9 A (AC-3e/AC-3) and 4 kW at $400V$, making it ideal for standard motor starter applications.

The Size S00 form factor ensures a minimal footprint in the control cabinet, and its key feature is the modern spring-loaded terminal technology, which allows for fast, maintenance-free, and vibration-proof wiring compared to traditional screw terminals.

Benefit

• Compact Design (Size S00): Optimized dimensions for space-saving installation in control panels and load feeders.
• Fast and Reliable Wiring: Equipped with innovative spring-loaded terminals, ensuring quick, secure, and maintenance-free connection, especially critical in environments with vibration.
• High Performance: Robust $9A$ rating and $4kW$ switching capacity for efficient motor control.
• Integrated Auxiliary Contact: Comes standard with $1NO$ auxiliary contact (Normally Open) for feedback or interlocking in control circuits, reducing the need for additional components.
• Global Compatibility: Part of the comprehensive Siemens SIRIUS modular system, built for worldwide use and compliance with major standards like IEC and UL/CSA.
• Energy Efficiency: Designed for low power loss in the control circuit.
• IE3/IE4 Ready: Suitable for use with highly efficient motors.

Function

The 3RT2016-2AH01 functions as an electromechanical switching device (contactor) to safely and reliably switch electrical power to a load, typically a 3-phase AC motor.

1. Operation: When the $48VAC$ coil is energized (via an input from a PLC, push button, or control relay), the magnetic field pulls the armature, closing the main contacts.
2. Motor Switching: The closed main contacts allow the $9A$, $4kW$ power to flow through to the motor.
3. Auxiliary Function: The integrated $1NO$ auxiliary contact changes state (closes) when the main contacts close, providing a signal for the control system (e.g., “motor contactor is ON”).

Application

This contactor is the ideal component for:

• Direct-On-Line (DOL) motor starters.
• Switching resistive loads.
• Controlling pumps, fans, and conveyor belts in industrial machinery.
• Integration into complex control systems and automated processes.

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