Siemens 3RT7035-1AG20 Contactor 40A, 18.5kW, 110V AC Coil, 3-Pole, Size S2, Screw Terminal Original Brand New

Overview

The Siemens 3RT7035-1AG20 is a high-performance 3-pole contactor from the trusted SIRIUS 3RT series, designed for reliable switching of motors and other industrial loads. This robust Size S2 contactor is rated for AC-3 applications up to 40 Amps at 400V, handling a motor power of 18.5 kW. It features a versatile 110V AC control coil (50/60 Hz) and a user-friendly screw terminal connection for fast and secure wiring. Ideal for a wide range of industrial control systems, the 3RT7035-1AG20 offers exceptional durability, compact design, and compliance with international standards, making it a perfect choice for machinery, automation systems, and panel building.

Key Features & Benefit

• High Switching Capacity: Capable of handling high currents (40A) and motor loads up to 18.5 kW, ensuring reliable performance in demanding applications.
• Versatile AC-3 Rating: Optimized for frequent switching of squirrel-cage motors, providing long-term reliability and extended operational life.
• Energy-Efficient Coil: The 110V AC coil minimizes energy consumption while providing reliable contact operation.
• Compact Size S2 Design: Saves valuable space within control panels and electrical cabinets without compromising on performance.
• Secure Screw Terminals: Provides a strong, vibration-proof connection for easy and safe wiring.
• Durable Construction: Built with high-quality materials to withstand harsh industrial environments and provide long-lasting service.
• Global Compatibility: Designed and manufactured to meet international standards, including IEC and UL, for use worldwide.

Technical Specification

• Product Name: Contactor
• Product Number: 3RT7035-1AG20
• Series: SIRIUS 3RT
• Operational Current (AC-3): 40 A
• Rated Power (AC-3, 400V): 18.5 kW
• Number of Poles: 3-pole
• Control Coil Voltage: 110 V AC (50/60 Hz)
• Size: S2
• Terminal Type: Screw Terminal
• Auxiliary Contacts: 1 NO + 1 NC (Standard, can be expanded)
• Mounting: DIN rail or screw fixing

Function

The Siemens 3RT7035-1AG20 contactor acts as an electrically operated switch. When the 110V AC coil is energized, it creates a magnetic field that pulls the main contacts closed, allowing power to flow to the connected load (e.g., an electric motor). When the power to the coil is removed, the contacts open, interrupting the circuit. This allows for remote or automated control of high-power equipment with a low-power control signal, ensuring the safety and efficiency of the system.

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