Siemens SIRIUS 3RT2316-2BB40 Contactor 4-Pole AC-1, 18A, 24V DC, Spring-Loaded Terminal, Size S00 Original Brand New

Siemens SIRIUS 3RT2316-2BB40 Contactor: Reliable 4-Pole Switching for Industrial Applications

The Siemens SIRIUS 3RT2316-2BB40 is a high-performance 4-pole contactor designed for efficient and reliable switching of non-inductive or weakly inductive loads (AC-1). With an 18 A rating at 400 V / 40 °C, a 24 V DC control voltage, and user-friendly spring-loaded terminals, this compact Size S00 contactor is an ideal choice for a variety of industrial automation and control tasks.

Overview

The 3RT2316-2BB40 is part of the renowned Siemens SIRIUS 3RT23 series, known for its robust design, adherence to international standards, and exceptional operational reliability. This contactor excels in applications requiring four-pole switching, such as disconnecting loads or power generation plants from the grid, and transfer switching operations. Its compact form factor (Size S00) makes it suitable for space-constrained installations without compromising on performance.

Key Benefit

• Versatile AC-1 Switching: Specifically designed for switching non-inductive or weakly inductive loads, ensuring optimal performance and longevity in applications like resistive heating, lighting, or isolation.
• Reliable DC Control: The 24 V DC operating mechanism provides stable and consistent control, making it suitable for modern control systems.
• Time-Saving Spring-Loaded Terminals: Experience quick and secure wiring with the innovative spring-loaded terminals, reducing installation time and ensuring reliable connections, even in vibration-prone environments.
• Compact Size S00: Optimize panel space with its small footprint, allowing for higher density installations.
• Enhanced Safety Features: Designed with considerations for short-circuit, overload, and overvoltage protection for main, auxiliary, and control circuits, enhancing overall system safety.
• High Contact Reliability: Integrated auxiliary contacts (1 NO in the basic unit) are specifically designed for high contact reliability, even at low voltages and currents, making them ideal for solid-state circuits.
• Standard Compliant: Manufactured and tested according to rigorous international standards including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), guaranteeing quality and compatibility.
• Expandable and Adaptable: Easily expanded with additional auxiliary switches and compatible with Siemens SIRIUS 3RU2 thermal or 3RB3 electronic overload relays for comprehensive motor protection.

Function

• Four-pole switching: Enables simultaneous control of four independent circuits.
• Load Disconnection: Safely isolates electrical loads or power generation systems from the main grid.
• Transfer Switching: Facilitates seamless switching between different power sources or load configurations.
• Integrated Auxiliary Contact: The basic unit includes one normally open (NO) auxiliary contact for feedback or interlocking purposes.
• Coil Damping Compatibility: Can be retrofitted with surge suppressors (RC elements, varistors, diodes) for damping opening surges, protecting the control circuit and extending coil life.

Application

The Siemens 3RT2316-2BB40 contactor is primarily used for:

• Four-pole switching of weak or non-inductive loads (AC-1): Ideal for resistive loads, heating elements, lighting circuits, and general switching applications where inductive kickback is minimal.
• Disconnecting loads or power generation plants from the grid: Provides a reliable means of isolation for maintenance or emergency situations.
• Transfer switching: Enables smooth transitions between different power sources or configurations in industrial systems.

Protection and Connection Notes:

• Short-circuit and overload protection of main connections: Refer to the technical product data sheet for free-standing contactor protection. For device combinations (contactor with overload relay or circuit breaker), consult the Digital Configuration Manual for load feeders.
• Short-circuit and overload protection of auxiliary connections: Information available in the technical product data sheet.
• Short-circuit and overload protection of control supply voltage: Consider relevant standards for control panel configuration, suitable power supply selection (with current-limiting function), and appropriate protection devices like miniature circuit breakers.
• Overvoltage protection at control supply voltage connection: RC elements, varistors, diodes, or diode assemblies can be retrofitted (ordered separately as accessories – see Surge suppressors). Note that damping increases break times and contact delay times.
• Main Circuit Connection: Features convenient spring-loaded terminals for secure connections.
• Auxiliary and Control Circuit Connection: Utilizes screw terminals for reliable wiring.

Motor Protection: For comprehensive motor protection, the 3RT2316-2BB40 contactor can be seamlessly combined with Siemens 3RU2 thermal overload relays or 3RB3 electronic overload relays.

Expandability: The basic unit of the 3RT2316-2BB40 can be expanded with additional auxiliary switches (up to the permissible configuration) for increased signaling and control capabilities.

Accessories and Spare Parts: A wide range of accessories and spare parts are available for the SIRIUS 3RT2 contactors, including surge suppressors, additional auxiliary switches, and replacement coils. Refer to the “Accessories and spare parts for SIRIUS 3RT2 contactors” documentation for detailed ordering information.

For more information and to explore our complete range of Siemens industrial automation products, visit Turll.