Siemens 3RT7025-1AG05 Sirius Contactor AC-3, 18A, 7.5kW, 36V AC Coil, Size S0 Original Brand New

Overview

The Siemens 3RT7025-1AG05 is a high-performance contactor from the trusted Sirius series, designed for reliable switching of three-phase motors and other electrical loads. This model is engineered for AC-3 applications, handling a rated current of 18A and a power output of 7.5kW at 400V. Its compact size S0 and robust design make it suitable for a wide range of industrial control panels and machinery. The contactor features a 36V AC 50Hz control voltage, a built-in 1 normally open (NO) and 1 normally closed (NC) auxiliary contact, and secure screw terminals for easy and dependable wiring.

Key Features & Benefit

• Reliable Performance: Optimized for AC-3 switching, ensuring smooth and safe operation of your equipment.
• Efficient Power Handling: Rated for 18A and 7.5kW at 400V, ideal for medium-duty motor control.
• Versatile Control Voltage: Operates with a standard 36V AC 50Hz control circuit, compatible with various automation systems.
• Integrated Auxiliary Contacts: The 1NO + 1NC configuration provides flexibility for signaling and interlocking functions.
• Durable & Compact Design: Part of the Siemens Sirius family, known for its longevity and space-saving size S0.
• Easy Installation: Screw terminals offer a secure and straightforward connection, reducing installation time.
• Safety & Compliance: Built to meet international standards, ensuring safe and reliable operation in industrial environments.

Function

The Siemens 3RT7025-1AG05 contactor acts as an electrically controlled switch used for switching a power circuit. It’s primarily used for controlling electric motors, heating, lighting, and capacitor banks. When the 36V AC coil is energized, it closes the main power contacts, allowing current to flow to the connected load. The integrated auxiliary contacts can be used for feedback loops, interlocks, or to control other parts of the circuit. The screw terminals provide a secure and robust connection for both power and control wiring.

Technical Specification

• Product Number: 3RT7025-1AG05
• Product Series: Siemens Sirius
• Application: Contactor for AC-3 switching
• Rated Operational Current (Ie): 18A (at 400V)
• Rated Operational Power (Pe): 7.5kW (at 400V)
• Control Voltage (Uc): 36V AC, 50Hz
• Auxiliary Contacts: 1 NO + 1 NC
• Size: S0
• Connection Type: Screw Terminal
• Mounting: DIN rail or screw fixing

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