Siemens 3RT2025-1BF44 SIRIUS Power Contactor, 17A, 7.5kW, 3-Pole, 110V DC, 2 NO + 2 NC Aux Contacts, S0 Size, Screw Terminal Original Brand New

Overview

The Siemens 3RT2025-1BF44 SIRIUS power contactor is a high-performance electrical component designed for switching motors and other resistive loads with exceptional reliability. As part of the globally recognized SIRIUS modular system, this contactor is engineered for seamless integration into industrial control panels and automation systems. It features a robust design and is ideal for demanding applications, ensuring stable operation and long service life.

Key Product Features & Specification

• Product Type: Power Contactor, AC-3e/AC-3
• Product Number: 3RT2025-1BF44
• Operating Voltage: 110 V DC
• Rated Operational Current: 17 A (at 400 V)
• Rated Operational Power: 7.5 kW (at 400 V)
• Number of Poles: 3-pole
• Auxiliary Contacts: 2 NO (Normally Open) + 2 NC (Normally Closed)
• Connection Type: Screw Terminal for secure and easy wiring
• Size: S0 (Standardized for compatibility)
• Special Feature: Removable auxiliary switch for added flexibility and ease of maintenance

Benefit

1. High Reliability: Built to Siemens’ rigorous quality standards, this contactor offers consistent performance and a long operational lifespan, reducing downtime and maintenance costs.
2. Versatile Application: Suitable for a wide range of motor control applications, including those requiring both AC-3e and AC-3 categories, making it a versatile choice for industrial machinery.
3. Easy Installation & Maintenance: The screw terminals provide a secure connection, while the removable auxiliary switch simplifies wiring changes or replacements without needing to dismantle the entire unit.
4. Compact, Space-Saving Design: The S0 size is a compact form factor, allowing for efficient use of space within control cabinets.
5. Global Compatibility: As a Siemens SIRIUS product, it is compatible with a vast range of accessories and modules, providing a scalable and future-proof solution.

Function

The Siemens 3RT2025-1BF44 functions as a core component in motor starters, load feeders, and electrical circuits. Its primary role is to switch the main current to the connected motor or load, either turning it ON or OFF, based on a control signal from a PLC, push button, or other control device. The integrated 2 NO + 2 NC auxiliary contacts provide feedback to the control system, indicating the contactor’s status (ON/OFF), and can be used for interlocking or signaling purposes.

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