Siemens 3RT2018-2AD02 SIRIUS Power Contactor AC-3e/AC-3, 16 A, 42 V AC, Spring-Loaded Terminal Original Brand New

Overview

The Siemens 3RT2018-2AD02 is a high-performance power contactor from the renowned SIRIUS 3RT2 series. Engineered for reliability and efficiency, this device is designed for switching motors and other electrical loads in industrial environments. Its compact S00 size makes it suitable for space-constrained applications, while the robust construction ensures long-term operational integrity. This specific model features a 42 V AC coil and spring-loaded terminals, which provide fast, secure, and vibration-resistant wiring.

Key Features & Specification

• Product Number: Siemens 3RT2018-2AD02
• Series: SIRIUS 3RT2
• Product Type: Power Contactor
• Operating Category: AC-3e/AC-3
• Rated Operational Current: 16 A
• Rated Power (at 400 V): 7.5 kW
• Number of Poles: 3-pole
• Control Supply Voltage: 42 V AC, 50/60 Hz
• Auxiliary Contacts: 1 NC (Normally Closed)
• Connection Type: Spring-loaded terminals
• Size: S00

Benefit

• High Performance: Built for demanding industrial applications, offering reliable switching of motors up to 7.5 kW.
• Energy Efficient: The SIRIUS 3RT2 series is optimized for low power consumption, reducing operational costs.
• Fast & Secure Wiring: Spring-loaded terminals eliminate the need for specialized tools and provide a secure, maintenance-free connection that is resistant to vibration.
• Compact Design: The small S00 size allows for high-density installation in control panels and enclosures, saving valuable space.
• Versatile Application: Suitable for a wide range of applications, including motor control, lighting, and heating circuits.
• Safety & Reliability: Equipped with a normally closed (NC) auxiliary contact for feedback and control circuit integration.

Function

The Siemens 3RT2018-2AD02 power contactor serves as a core component in motor control circuits. Its primary function is to make or break an electrical circuit under normal load conditions. When the 42 V AC coil is energized, the main contacts close, allowing power to flow to the connected motor. When the coil is de-energized, the main contacts open, safely disconnecting the power supply. The integrated 1 NC auxiliary contact can be used to signal the status of the main circuit to a PLC or another control system.

Application

• Motor Control Panels: Start/stop control of electric motors in various machinery.
• Industrial Automation: Integration into automated systems for controlling pumps, fans, conveyors, and compressors.
• HVAC Systems: Switching of blowers and pumps.
• Lighting Control: High-current switching for large lighting installations.
• Power Distribution: Acting as a switching element in distribution panels.

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