Siemens 3RT2025-2BB44-3MA0 SIRIUS Power Contactor, 17A, 7.5kW (400V), 24V DC Coil, 2NO+2NC Aux Contacts, Spring-Loaded Terminals Original Brand New

Overview: Siemens 3RT2025-2BB44-3MA0 SIRIUS Power Contactor

The Siemens 3RT2025-2BB44-3MA0 is a high-performance power contactor from the trusted SIRIUS 3RT2 product line, designed for efficient and reliable switching of motors and electrical loads. This robust Size S0 contactor is engineered for demanding industrial environments and is rated for AC-3e/AC-3 applications up to 17A and 7.5 kW at 400 V.

A key feature of this model is its 24V DC operating coil, which provides consistent and energy-efficient control. It is equipped with a comprehensive set of 2 NO (Normally Open) and 2 NC (Normally Closed) auxiliary contacts, offering flexible integration into complex control circuits. The innovative spring-loaded terminals ensure a vibration-proof, maintenance-free connection, significantly reducing installation time and increasing operational reliability.

Key Features & Function

• High Performance: Rated for switching loads up to 17A (AC-3e/AC-3) and 7.5 kW at 400 V, making it suitable for a wide range of motor control applications.
• Reliable DC Coil: The 24V DC coil ensures low power consumption and reliable operation, even in environments with voltage fluctuations.
• Comprehensive Auxiliary Contacts: The built-in 2 NO + 2 NC auxiliary contacts are captive and provide versatile feedback and interlocking capabilities for your control system.
• Spring-Loaded Terminals: This advanced connection technology offers a quick, secure, and permanent wire connection without the need for tools, resisting vibrations and thermal expansion.
• Compact Size: As a Size S0 contactor, it provides high switching capacity in a space-saving design, allowing for more compact panel layouts.
• Integrated Captive Auxiliary Switch: The auxiliary switch is integrated and cannot be removed, ensuring consistent and reliable performance.
• Durable Design: The SIRIUS 3RT2 series is known for its long mechanical and electrical service life, reducing the need for frequent replacement.

Benefit

• Enhanced Reliability: The spring-loaded terminals prevent loosening over time, ensuring a secure connection and minimizing downtime due to maintenance.
• Simplified Installation: Reduces wiring time and complexity, leading to faster and more cost-effective project completion.
• Energy Efficiency: The 24V DC coil consumes less power compared to AC coils, contributing to lower operating costs.
• Versatile Control: The ample auxiliary contacts allow for sophisticated control circuit design, including interlocking and status indication.
• Space-Saving Solution: The compact S0 design is perfect for installations where panel space is at a premium.

Technical Specification

• Product Number: Siemens 3RT2025-2BB44-3MA0
• Product Type: Power Contactor
• Series: SIRIUS 3RT2
• Rated Operational Current: 17 A (AC-3e/AC-3)
• Rated Power: 7.5 kW at 400 V
• Number of Poles: 3-pole
• Coil Voltage: 24 V DC
• Auxiliary Contacts: 2 NO + 2 NC
• Connection Type: Spring-loaded terminal
• Size: S0
• Surge Suppressor: Not retrofittable

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