Siemens 3RT2018-2FB42 Power Contactor, 16A, 7.5kW, 24V DC with Diode, Size S00 Original Brand New

Overview

The Siemens 3RT2018-2FB42 is a high-performance power contactor designed for efficient and reliable motor control. This compact device, part of the SIRIUS series, is engineered to handle demanding industrial applications.

With its 3-pole configuration and a rated current of 16 A, it is suitable for controlling motors up to 7.5 kW at 400 V. The integrated diode and a 24 V DC control voltage ensure reliable operation and reduced wiring complexity. Its small size (S00) and user-friendly spring-loaded terminals make installation quick and easy.

Key Features & Benefit

• High Performance: Rated for AC-3e/AC-3 operation, handling up to 16 A and 7.5 kW at 400 V, making it ideal for a wide range of motor control tasks.
• Reliable DC Operation: The 24 V DC control voltage with an integrated diode minimizes voltage spikes and ensures stable, reliable switching.
• Compact Design: The S00 size allows for space-saving installation in control cabinets, helping you optimize panel layout.
• Quick & Secure Installation: Spring-loaded terminals provide a fast, vibration-proof, and maintenance-free connection, saving you time and ensuring a secure electrical connection.
• Enhanced Functionality: Includes a built-in 1 NC (normally closed) auxiliary contact for feedback and interlocking circuits, increasing system flexibility.
• Robust Construction: Built to Siemens’ high standards for durability and long-term performance in industrial environments.

Function

The Siemens 3RT2018-2FB42 power contactor is a crucial component in industrial automation and electrical control systems. Its primary function is to make and break the connection of a power circuit, typically for controlling electric motors. The 24 V DC control voltage energizes the coil, causing the main contacts to close and supply power to the motor. The integrated diode protects the control circuit from inductive voltage peaks when the coil is de-energized, while the auxiliary contact provides a signal to other parts of the control system.

Application

• Motor control for pumps, fans, compressors, and conveyors.
• Industrial automation and machinery.
• Heating, ventilation, and air conditioning (HVAC) systems.
• Switching resistive and inductive loads.

Technical Specification

• Product Number: Siemens 3RT2018-2FB42
• Rated Current (AC-3e/AC-3): 16 A
• Rated Power: 7.5 kW at 400 V
• Poles: 3-pole
• Control Voltage: 24 V DC
• Auxiliary Contacts: 1 NC (normally closed)
• Terminal Type: Spring-loaded terminal
• Size: S00
• Integrated Features: Diode

For more information on our wide range of industrial automation products and to explore our full catalog, please visit Turll.