Siemens 3RT2327-2AK60 Contactor 4-Pole, AC-1, 50A, 110V/120V Coil, Spring-Loaded Original Brand New

Overview

The Siemens 3RT2327-2AK60 is a high-performance 4-pole contactor from the SIRIUS 3RT2 series, specifically designed for switching weak or non-inductive loads (AC-1 applications). With a robust 50A current rating at 400V / 40°C, this compact S0-sized contactor offers reliable performance in diverse industrial environments. It features a versatile control supply voltage of 110V AC (50 Hz) or 120V AC (60 Hz) and comes equipped with convenient 1 NO (normally open) + 1 NC (normally closed) auxiliary contacts for enhanced functionality. The innovative spring-loaded terminals ensure quick, secure, and vibration-resistant connections, making installation and maintenance highly efficient.

Function

• Four-Pole Switching (AC-1): Optimally designed for reliable switching of weak or non-inductive loads, ensuring efficient power control.
• Load Disconnection: Capable of disconnecting loads or power generation plants from the electrical grid.
• Transfer Switching: Facilitates seamless transfer switching applications.
• Auxiliary Contact Integration: Includes 1 NO + 1 NC auxiliary contacts for signaling, interlocking, and control circuit integration.
• Control Supply Voltage: Operates with a 110V AC (50 Hz) or 120V AC (60 Hz) control supply for broad compatibility.

Benefit

• Reliable Performance: Built to Siemens’ rigorous quality standards (IEC 60947 series) for long-lasting and dependable operation in industrial settings.
• Easy Installation & Maintenance: Spring-loaded terminals offer fast, tool-free wiring, reducing installation time and ensuring secure connections even in vibrating environments.
• Compact Design (Size S0): Space-saving design allows for efficient panel layout and integration into existing systems.
• Versatile Application: Ideal for a wide range of AC-1 applications, including heating, lighting, and general resistive loads.
• Enhanced Safety: Designed with considerations for short-circuit, overload, and overvoltage protection of connections, aligning with relevant standards.
• High Contact Reliability: Auxiliary contacts are optimized for low-voltage/current applications, ensuring dependable operation in sensitive control circuits.

Standards & Protection: The Siemens 3RT2327-2AK60 contactor adheres to international standards including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 for auxiliary switches. Comprehensive information on the short-circuit, overload, and overvoltage protection of main, auxiliary, and control supply voltage connections is detailed in the technical product data sheet and relevant configuration manuals. Protection measures should be implemented in accordance with applicable standards for control panel configuration and component selection.

Connection Methods:

• Main Circuit: Spring-loaded terminals for 3RT231 and 3RT232 contactors, offering convenient plug-in design for device connectors.
• Auxiliary and Control Circuit: Screw terminals (Note: This specific model has spring-loaded for main, but auxiliary circuits generally use screw terminals on this series).

Electromagnetic Compatibility (EMC): The contactor fulfills the requirements for environment category A. When used in environments with frequency converters, specific configuration notes must be observed as detailed in the Equipment Manual.

Contact Reliability of Auxiliary Contacts: The auxiliary contacts of the 3RT23 contactors guarantee a high level of contact reliability, especially suitable for switching voltages $\le$ 110 V and currents $\le$ 100 mA. They are particularly effective for solid-state circuits with currents $\ge$ 1 mA at voltages of 17 V and higher.

Motor Protection Compatibility: For overload protection, the 3RT2327-2AK60 contactor is compatible with Siemens 3RU2 thermal overload relays or 3RB3 electronic overload relays, which can be directly mounted for a complete motor feeder solution (though this specific model is AC-1, primarily for non-motor loads, this is a general series capability).

Operating Mechanism: This model features a conventional AC operating mechanism, with control via the A1-A2 control supply voltage connection.

Application

The Siemens 3RT2327-2AK60 contactor is ideal for:

• Four-pole switching of weak or non-inductive loads (AC-1)
• Disconnecting loads or power generation plants from the grid
• Transfer switching applications

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