Siemens 3RT2025-1DB44-3MA0 SIRIUS Power Contactor, 17A, 7.5kW, 24V DC, Screw Terminal, Size S0 Original Brand New

Overview

The Siemens 3RT2025-1DB44-3MA0 is a high-performance SIRIUS series power contactor designed for reliable and efficient switching of electric motors and other loads in industrial environments. Engineered for demanding applications, this 3-pole contactor is rated for AC-3e/AC-3 operation with a current of 17 A and a power output of 7.5 kW at 400 V.

Its compact Size S0 design makes it a space-saving solution for control panels and electrical cabinets. The integrated 24 V DC control voltage ensures precise and reliable operation, while the pre-installed varistor provides surge protection, extending the life of the coil.

Key Features & Benefit

• High Performance: Rated for 17 A and 7.5 kW at 400 V (AC-3e/AC-3), ensuring robust performance for motor control applications.
• Integrated Surge Protection: Comes with a plugged-in varistor to protect the coil from voltage spikes, enhancing durability and reliability.
• Versatile Auxiliary Contacts: Features a built-in auxiliary switch with 2 normally open (NO) and 2 normally closed (NC) contacts, providing flexibility for complex control and signaling circuits.
• Easy & Secure Wiring: Equipped with screw terminals for secure, low-resistance connections, simplifying installation and maintenance.
• Compact Design: The Size S0 form factor saves valuable space within control cabinets, allowing for a more compact and efficient layout.
• Reliable DC Control: Operates with a 24 V DC control voltage, offering stable and energy-efficient switching.
• Global Standard Compliance: Adheres to international standards, including IEC 60947, ensuring compatibility and safety for global projects.

Function & Application

The Siemens 3RT2025-1DB44-3MA0 power contactor is a crucial component in various industrial automation and control systems. Its primary functions include:

• Motor Control: Ideal for switching 3-phase AC motors, including squirrel-cage and slip-ring motors.
• Resistive Load Switching: Can be used to control resistive loads such as heating elements and lighting systems.
• Automation Systems: Integrates seamlessly into programmable logic controller (PLC) and relay-based control circuits.
• General Industrial Use: Suitable for a wide range of applications in manufacturing, HVAC, pumping stations, and machinery.

Technical Specification

• Product Type: Power Contactor
• Product Number: 3RT2025-1DB44-3MA0
• Rated Operational Current (AC-3e/AC-3): 17 A
• Rated Operational Power (AC-3e/AC-3): 7.5 kW @ 400 V
• Number of Poles: 3-pole
• Control Supply Voltage: 24 V DC
• Auxiliary Contacts: 2 NO + 2 NC (Captive auxiliary switch)
• Surge Protection: Plugged-in varistor
• Termination Type: Screw terminals
• Frame Size: S0
• Series: SIRIUS

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