Siemens 3RT7035-1AC20 Contactor, 40A, 18.5kW, 24V AC Coil, 3-Pole, S2 Size, Screw Terminal Original Brand New

Overview

The Siemens 3RT7035-1AC20 is a high-performance 3-pole contactor from the trusted SIRIUS 3RT series, engineered for reliable control of motors and other industrial loads. This robust Size S2 device is designed for AC-3 applications, with a rated operational current of 40A and a power rating of 18.5kW at 400V. Its 24V AC, 50/60 Hz control coil makes it suitable for a wide range of industrial control systems. Featuring secure and easy-to-use screw terminals, the 3RT7035-1AC20 ensures a strong and lasting electrical connection, reducing installation time and maintenance efforts.

Key Features & Benefit

• High Performance: Rated for 40A (AC-3) and 18.5kW, providing reliable switching for demanding motor control applications.
• Universal Compatibility: The 24V AC control coil (50/60 Hz) integrates seamlessly into standard industrial control circuits worldwide.
• Robust Construction: Part of the SIRIUS 3RT series, known for its durable and long-lasting design in harsh industrial environments.
• Simple and Secure Wiring: Screw terminals offer a proven method for creating a strong, vibration-resistant connection, ensuring operational safety and reliability.
• Compact Size: The S2 size form factor allows for efficient use of space within control cabinets and panels.
• Energy Efficiency: Optimized design to minimize power consumption in the control circuit.
• Scalable System: Compatible with a wide range of accessories from the SIRIUS modular system, including auxiliary switches, overload relays, and surge suppressors.

Function

The Siemens 3RT7035-1AC20 contactor serves as an essential component in motor starters, acting as an electrically controlled switch for connecting and disconnecting power to an electric motor. It is typically used in conjunction with a circuit breaker and an overload relay to form a complete motor control system. The 24V AC control signal energizes the coil, which closes the main contacts to supply power to the motor. When the signal is removed, the contacts open, safely cutting off the power.

Technical Specification

• Product Number: 3RT7035-1AC20
• Product Series: SIRIUS 3RT7
• Contactor Type: 3-pole
• Operating Current (AC-3): 40 A at 400 V
• Power Rating (AC-3): 18.5 kW at 400 V
• Control Coil Voltage: 24 V AC, 50/60 Hz
• Size: S2
• Termination Type: Screw Terminal
• Installation: DIN rail mounting
• Application: AC Motor Control, Switching Resistive Loads

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