Siemens 3RT2016-1BA42 SIRIUS Power Contactor, 9A, 4kW, 12V DC Coil, Size S00 Original Brand New

Overview: Siemens 3RT2016-1BA42 SIRIUS 3RT Contactor

The Siemens 3RT2016-1BA42 is a compact, high-performance power contactor from the trusted SIRIUS 3RT family, specifically designed for switching motors and other resistive loads up to $9\text{ A}$ (AC-3e/AC-3) at $400\text{ V}$. This robust, 3-pole contactor is engineered for use in industrial control systems and motor starter applications. Featuring a low-power, integrated $12\text{ V DC}$ operating coil and a reliable $1\text{ NC}$ (Normally Closed) auxiliary contact, it offers precise control and feedback within a space-saving Size S00 footprint. The easy-to-use screw terminals ensure secure and straightforward wiring.

Key Technical Specification

• Product Type: Power Contactor (Motor Switching)
• Siemens Article Number: 3RT2016-1BA42
• Contactor Size: S00
• Operating Current (AC-3e/AC-3): $9\text{ A}$ at $400\text{ V}$
• Operating Power (AC-3): $4\text{ kW}$ at $400\text{ V}$ (3-Phase)
• Poles: 3-pole main circuit
• Control Coil Voltage: $12\text{ V DC}$
• Auxiliary Contacts: $1\text{ NC}$ (Normally Closed)
• Terminals: Screw Terminals
• Product Series: SIRIUS 3RT20

Benefit

1. Reliable Motor Control: Rated for AC-3 and the new IE3/IE4 compliant AC-3e operation, guaranteeing secure and efficient switching of electric motors.
2. Space and Energy Efficiency: Compact S00 design saves panel space, and the low-power $12\text{ V DC}$ coil reduces energy consumption in control cabinets.
3. Simplified Wiring: Robust screw terminals allow for quick and dependable connection of main and control circuits.
4. Integrated Feedback: Built-in $1\text{ NC}$ auxiliary contact provides immediate status feedback to the control system (e.g., PLC).
5. Durable Performance: High mechanical and electrical service life typical of the Siemens SIRIUS range ensures long-term operational reliability.

Function & Typical Application

The 3RT2016-1BA42 contactor acts as an electrically controlled switch for a power circuit. Its primary function is to safely start, stop, and reverse 3-phase electric motors, heaters, and other inductive/resistive loads in industrial machinery and plant engineering.

Application

• Control of small 3-phase motors for pumps, fans, and compressors.
• Integration into automated processes requiring $12\text{ V DC}$ control logic.
• Use within complex motor starter assemblies (in conjunction with thermal overload relays).
• Switching resistive loads (AC-1) up to $22\text{ A}$.

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