Siemens 3RT2016-2UB41 SIRIUS Power Contactor, 9A, 4kW, 24V DC Coil, Spring-Loaded, Size S00 Original Brand New

Overview

The Siemens 3RT2016-2UB41 is a high-performance, 3-pole SIRIUS power contactor designed for reliable switching of motors and electrical loads in industrial automation. Part of the compact SIRIUS 3RT2 series, this robust contactor is rated for AC-3e/AC-3 operation at 9 A and a maximum power of 4 kW at 400 V.

A key feature of the 3RT2016-2UB41 is its 24 V DC control coil with an integrated varistor, providing essential surge suppression for enhanced coil protection and system reliability. It features a convenient spring-loaded terminal connection system for fast, vibration-proof wiring and includes one integrated Normally Open (1 NO) auxiliary contact. Its small Size S00 footprint makes it ideal for space-saving installations in control cabinets.

Key Features & Technical Specification

• Manufacturer: Siemens
• Product Brand: SIRIUS
• Contactor Type: Power Contactor (Motor Contactor)
• Product Family: 3RT20 (Size S00)
• Part Number: 3RT2016-2UB41
• Poles: 3-pole
• Rated Operational Current (AC-3e/AC-3): $9\text{ A}$
• Rated Power: $4\text{ kW}/400\text{ V}$
• Control Supply Voltage (Us​): $24\text{ V DC}$
• Coil Protection: Integrated varistor (surge suppressor)
• Auxiliary Contacts: $1\text{ NO}$ (Normally Open)
• Connection Method: Spring-loaded terminal (spring-type terminal)
• Size: S00

Benefit

1. High Reliability: Built for dependable switching performance for AC-3 and AC-3e motor applications.
2. Space-Saving Design: The compact Size S00 minimizes panel space requirements in machinery and control systems.
3. Enhanced Coil Protection: The integrated varistor protects the $24\text{ V DC}$ control coil against voltage surges, extending the contactor’s service life and reducing system downtime.
4. Fast & Secure Wiring: Spring-loaded terminals allow for tool-free, secure, and vibration-resistant connection, significantly reducing installation time and maintenance effort compared to traditional screw terminals.
5. Easy Integration: Part of the modular SIRIUS system, allowing for simple addition of supplementary components like auxiliary switch blocks and overload relays.

Function

The Siemens 3RT2016-2UB41 functions as an electromechanical switching device primarily used for starting, stopping, and reversing three-phase asynchronous motors up to $4\text{ kW}$ (at $400\text{ V}$).

• Main Function: Switches the $9\text{ A}$, 3-phase load (main contacts).
• Control Function: The $24\text{ V DC}$ coil receives the control signal. The integrated varistor provides protection against control voltage spikes.
• Signaling/Interlocking: The $1\text{ NO}$ auxiliary contact provides a signal about the contactor’s status to the control system (e.g., PLC) or can be used for interlocking circuits.

Application

This contactor is ideal for a wide range of industrial applications, including:

• Motor switching (pumps, fans, conveyors)
• Heating, ventilation, and air conditioning (HVAC) systems
• Industrial control panels and machinery
• Any application requiring reliable $9\text{ A}$, $4\text{ kW}$ power switching with a $24\text{ V DC}$ control voltage.

For more of our high-quality industrial automation products and components, visit turll.