Siemens 3RT2317-1BA40 SIRIUS Contactor AC-1, 22A, 4-Pole, 12V DC, S00, Screw Terminal Original Brand New

Overview

The Siemens 3RT2317-1BA40 SIRIUS Contactor is a high-performance, 4-pole power contactor designed for reliable switching of weak or non-inductive loads (AC-1) in industrial applications. Part of the compact SIRIUS S00 series, this robust device offers a rated current of 22 A at 400 V and 40 °C, ensuring efficient operation in diverse environments. Featuring a 12 V DC operating mechanism and secure screw terminals, the 3RT2317-1BA40 provides flexible and dependable control for a wide range of electrical systems. Ideal for applications requiring precise disconnection of loads, power generation plant integration, or transfer switching, this contactor embodies Siemens’ commitment to quality and safety, meeting stringent international standards like IEC 60947.

Benefit

• Reliable Performance: Designed for consistent and safe switching of non-inductive loads, ensuring operational continuity.
• Space-Saving Design: Compact S00 size makes it ideal for installations with limited panel space.
• Versatile Application: Suitable for a variety of tasks including load disconnection, grid integration, and transfer switching.
• Enhanced Safety: Complies with rigorous international safety standards (IEC 60947), offering peace of mind.
• Easy Integration: Screw terminals provide a secure and straightforward connection method for main and control circuits.
• Expandable Functionality: Supports the addition of auxiliary switches and surge suppressors for increased flexibility and protection.
• Durability: Built with high-quality materials for a long service life in demanding industrial environments.

Function

• Switching of AC-1 Loads: Effectively makes and breaks circuits for resistive or mildly inductive loads.
• Load Disconnection: Provides a reliable means to disconnect electrical loads from the power supply.
• Power Generation Plant Integration: Facilitates the integration and control of power generation systems.
• Transfer Switching: Enables seamless transfer between different power sources or loads.
• Circuit Control: Acts as a key component in control circuits, operated by a 12V DC supply.

Protection and Safety

The Siemens 3RT2317-1BA40 contactor is designed with comprehensive protection considerations:

• Short-Circuit and Overload Protection: All connections (main, auxiliary, and control supply) generally require protection using suitable measures, such as circuit breakers or miniature circuit breakers. Refer to the technical product data sheet and configuration manuals for detailed guidance.
• Overvoltage Protection: Can be retrofitted with surge suppressors (RC elements, varistors, diodes) to dampen opening surges in the coil, protecting the control circuit and extending coil lifespan.
• Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A, ensuring reliable operation in industrial settings. Note: Specific configuration notes in the Equipment Manual should be observed when used with frequency converters.
• Auxiliary Contact Reliability: Auxiliary contacts are designed for high contact reliability, especially suitable for switching low voltages (≤ 110 V) and currents (≤ 100 mA), making them ideal for solid-state circuits.

Connection Methods

• Main Circuit: Screw terminals are provided for secure connection of the main power cables.
• Auxiliary and Control Circuit: Screw terminals are used for all auxiliary and control wiring, ensuring robust connections.

Motor Protection & Overload Relays

While the 3RT2317-1BA40 is primarily for AC-1 applications, for protection against overload in motor-driven systems, Siemens 3RU2 thermal overload relays or 3RB3 electronic overload relays can be directly mounted onto 3RT23 contactors, creating a complete motor feeder solution.

Operating Mechanism

This version features a conventional 12 V DC operating mechanism, ensuring precise and reliable switching actions controlled by a direct current supply. The solenoid coil is replaceable, contributing to the contactor’s maintainability.

Expandability & Accessories

The 3RT2317-1BA40 comes with an integrated auxiliary contact. Further expansion is possible with additional auxiliary switches, allowing for customized control circuit configurations. A wide range of accessories and spare parts, including surge suppressors and additional auxiliary switches, are available separately to enhance functionality and ensure long-term operation.

Application

The Siemens 3RT2317-1BA40 contactor is ideally suited for:

• Four-pole switching of resistive and non-inductive loads (AC-1).
• Disconnecting various loads from the electrical grid.
• Integration and control within power generation plants.
• Implementing transfer switching solutions.

For more information on the Siemens SIRIUS range and other industrial control products, please visit Turll.