Siemens SIRIUS 3RT2 Contactor 3RT7025-1AC20, AC-3 18A, 7.5kW, 400V, 24V AC Coil, Size S0, Screw Terminal Original Brand New

Overview

The Siemens 3RT7025-1AC20 is a high-performance SIRIUS 3RT2 series power contactor designed for reliable switching of motors and other industrial loads. This robust and compact device, with a size S0 frame, is engineered to meet the demands of modern automation and control systems. It is part of the trusted Siemens SIRIUS modular system, ensuring seamless integration and superior performance in a wide range of applications.

Key Features & Technical Specification

• Product Number: 3RT7025-1AC20
• Contactor Type: Power Contactor for Motor Loads (AC-3)
• Rated Operating Current (Ie): 18 A (at 400V)
• Rated Power (P): 7.5 kW (at 400V)
• Control Supply Voltage (Uc): 24 V AC, 50/60 Hz
• Size: S0 (Standard Frame Size)
• Connection Method: Screw Terminals
• Contact Configuration: 3-pole main circuit
• Mounting: DIN rail mountable
• Ambient Temperature: -25°C to +60°C
• Standards: IEC, UL, CSA, and more

Benefit

• High Performance & Reliability: Engineered by Siemens, a global leader in industrial automation, for consistent and long-lasting operation in demanding environments.
• Compact Design: The size S0 frame saves valuable panel space, allowing for more compact control cabinet layouts.
• Versatile Application: Ideal for a wide range of switching tasks, including controlling AC motors, lighting systems, and heating equipment.
• Easy Installation: The standard DIN rail mounting and screw terminals ensure a quick and secure installation process.
• Energy Efficient: Designed with low power consumption to reduce operational costs.
• Modular System: Part of the Siemens SIRIUS family, which allows for easy addition of auxiliary contacts, surge suppressors, and other accessories.

Function

The Siemens 3RT7025-1AC20 contactor’s primary function is to establish and interrupt electrical connections in the main circuit. It is specifically rated for AC-3 duty, making it perfectly suited for frequent starting and stopping of squirrel-cage motors. When the 24V AC control coil is energized, it closes the main power contacts, allowing current to flow to the connected load. When de-energized, it opens the contacts, safely disconnecting the power supply.

Application

• Motor starters for pumps, fans, and conveyor systems
• Industrial machine control
• HVAC systems
• Lighting control
• Heating circuits
• General power switching applications

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