Siemens SIRIUS 3RT2344-1AP00 Contactor 4-Pole, AC-1, 110A, 230V AC, S3 Size with 1 NO + 1 NC Auxiliary Contact Original Brand New

Siemens SIRIUS 3RT2344-1AP00 Contactor – Robust Control for Non-Inductive Loads

The Siemens SIRIUS 3RT2344-1AP00 is a high-performance 4-pole contactor specifically designed for reliable switching of AC-1 (non-inductive or weakly inductive) loads. Engineered with Siemens’ renowned quality, this S3 size contactor offers a robust solution for diverse industrial applications, ensuring efficient and safe operation.

Overview

The 3RT2344-1AP00 contactor boasts a 4-pole configuration, rated for 110 A at 400 V and 40 °C, making it ideal for applications requiring high current handling for resistive loads. It features a 230 V AC, 50 Hz control voltage, along with integrated 1 NO (normally open) and 1 NC (normally closed) auxiliary contacts for enhanced control circuit flexibility. The convenient screw terminals facilitate straightforward wiring, ensuring a secure and reliable connection. This model adheres to stringent international standards, guaranteeing performance and safety.

Key Benefit

• Reliable AC-1 Switching: Optimized for switching non-inductive or weakly inductive loads, ensuring long-term stability and performance.
• High Current Capacity: Rated for 110 A at 400 V, suitable for demanding power switching applications.
• Integrated Auxiliary Contacts: Comes with 1 NO + 1 NC auxiliary contacts, providing immediate feedback and control possibilities for your system.
• Robust and Durable Design: Built to Siemens’ high standards, ensuring a long operational life and resistance to harsh industrial environments.
• Easy Installation: Features secure screw terminals for quick and reliable wiring.
• Standard Compliant: Meets critical international standards like IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1, ensuring global applicability and safety.
• Flexible Protection Options: Can be easily integrated with Siemens 3RU2 thermal or 3RB3 electronic overload relays for comprehensive motor and load protection.

Function

• Four-Pole Switching: Designed for switching four separate circuits or a multi-phase system, particularly for non-inductive loads.
• Load Disconnection: Effectively disconnects loads or power generation plants from the grid.
• Transfer Switching: Capable of handling transfer switching applications.
• Control Circuit Integration: Auxiliary contacts enable interlocking, signaling, and sequence control within automated systems.
• Protection against Overvoltage: Can be retrofitted with surge suppressors (RC elements, varistors, diodes) for coil protection.
• Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A, ensuring reliable operation in industrial settings.

Protection of Connections:

All connections must be protected against overload and short circuits.

• Main Connections: Refer to the technical product data sheet for free-standing contactor protection, or the Digital/Configuration Manuals for load feeder combinations (contactor with overload relay or circuit breaker).
• Auxiliary Connections: Consult the technical product data sheet for protection information.
• Control Supply Voltage Connections: Consider relevant standards for control panel configuration, suitable power supply with current-limiting function, and appropriate protection devices like miniature circuit breakers.

Accessories and Spare Parts:

A wide range of accessories and spare parts are available for the SIRIUS 3RT23 contactors, including:

• Surge Suppressors: RC elements, varistors, diodes, or diode assemblies for damping opening surges in the coil (order separately).
• Auxiliary Switches: Expandable with additional auxiliary switches (permissible configuration must be observed).
• Overload Relays: 3RU2 thermal overload relays or 3RB3 electronic overload relays for motor protection.
• Solenoid Coils: Replaceable.
• For a complete list, please refer to the “Accessories and spare parts for SIRIUS 3RT2 contactors and SIRIUS 3RH2 contactor relays” documentation.

Application

• Switching of heating elements
• Lighting control in industrial settings
• Isolation of power circuits
• Control of resistive loads in manufacturing processes
• Applications requiring robust 4-pole switching of non-inductive loads.

For more information and to explore our full range of industrial control products, please visit Turll.