Siemens 3RT2326-1BK80 SIRIUS Contactor, AC-1, 40A, 4-Pole, 52V DC, S0 Size Original Brand New

Overview

The Siemens 3RT2326-1BK80 is a high-performance SIRIUS power contactor designed for robust industrial applications. As a 4-pole AC-1 contactor, it is specifically engineered for switching weak or non-inductive loads, making it ideal for diverse applications such as disconnecting loads, power generation plant integration, and transfer switching. This compact S0 size contactor boasts a 40 A current rating at 400 V / 40 °C, a reliable 52 V DC operating mechanism, and integrated 1 NO + 1 NC auxiliary contacts for versatile control. Featuring convenient screw terminals for secure connections, the 3RT2326-1BK80 ensures reliable operation and adherence to stringent international standards.

Benefit

• Reliable Performance: Engineered to IEC standards, ensuring consistent and safe operation in demanding industrial environments.
• Versatile Application: Optimized for switching non-inductive and weakly inductive loads, suitable for various power distribution and control tasks.
• Integrated Auxiliary Contacts: The 1 NO + 1 NC auxiliary contacts provide flexible control and signaling options, reducing the need for external components.
• Compact Design (Size S0): Space-saving design allows for efficient panel layout and integration into diverse control cabinets.
• Easy Installation: Screw terminals offer straightforward and secure wiring, simplifying installation and maintenance.
• Robust Protection: Designed with considerations for short-circuit, overload, and overvoltage protection of connections, enhancing system longevity.
• High Contact Reliability: Auxiliary contacts are particularly suitable for low-voltage and low-current circuits (e.g., solid-state circuits), ensuring reliable signaling.

Function

• Four-pole Switching: Efficiently switches four circuits simultaneously for AC-1 applications.
• Load Disconnection: Effectively disconnects loads from the grid.
• Power Generation Plant Integration: Facilitates switching in power generation systems.
• Transfer Switching: Enables seamless transfer between different power sources or loads.
• Control Circuit Operation: The 52V DC operating mechanism ensures precise control, while auxiliary contacts provide feedback and interlocking functions.

Standards & Protection

• Standards Compliance: Meets international standards IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), guaranteeing quality and compatibility.
• Connection Protection: All connections require appropriate protection against overload and short circuits. Detailed guidelines for main, auxiliary, and control supply voltage connections are provided in technical data sheets and configuration manuals.
• Overvoltage Protection: Can be retrofitted with surge suppressors (RC elements, varistors, diodes, or diode assemblies) for damping opening surges in the coil, protecting the control circuit.
• Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A, ensuring reliable operation in industrial settings.

Connection Methods:

• Main Circuit: Features screw terminals for robust and reliable connections.
• Auxiliary and Control Circuit: Equipped with screw terminals for secure wiring of control and signaling lines.

Motor Protection Compatibility: For overload protection of motors, the 3RT23 contactors are compatible with Siemens 3RU2 thermal overload relays or 3RB3 electronic overload relays, which can be directly mounted for comprehensive motor feeder solutions.

Operating Mechanism & Maintenance:

• DC Operating Mechanism: Utilizes a 52 V DC operating mechanism, offering precise and efficient control.
• Coil Replacement: The solenoid coil can be replaced for extended product lifespan and ease of maintenance.
• Auxiliary Contact Expansion: Basic units can be expanded with additional auxiliary switches, allowing for flexible configuration based on application needs. The 3RT2326-1BK80 comes with two integrated auxiliary contacts (1 NO + 1 NC).

Application

The Siemens 3RT2326-1BK80 contactor is ideally suited for applications requiring reliable four-pole switching of non-inductive or weakly inductive loads. This includes:

• Controlling resistive loads (e.g., heating elements, lighting systems).
• Switching capacitor banks.
• Interfacing with power generation systems.
• Implementing transfer switching in critical power distribution setups.

For more industrial automation products and solutions, visit Turll.