Siemens 3RT2316-1BM40 Contactor 4-Pole AC-1, 18A, 220V DC, Screw Terminal, Size S00 Original Brand New

Overview

The Siemens 3RT2316-1BM40 is a high-performance 4-pole contactor designed for reliable switching of AC-1 (non-inductive or weakly inductive) loads. Engineered to meet demanding industrial standards, this robust contactor is ideal for applications requiring efficient and secure control of electrical circuits, power generation plants, and transfer switching. With its compact S00 size and convenient screw terminals, it offers a versatile solution for various industrial automation and control panel designs.

Function

The Siemens 3RT2316-1BM40 contactor serves as an electromagnetic switch for controlling electrical circuits. Specifically, it is designed for:

• Four-pole switching of AC-1 loads: Ideal for resistive heating, lighting, and other non-motor loads.
• Disconnecting loads or power generation plants from the grid: Provides a safe and efficient means of isolation.
• Transfer switching: Enables seamless switching between different power sources or loads. Its 220 V DC operating mechanism ensures precise and reliable switching operations.

Benefit

• Reliable Performance: Built to Siemens’ rigorous quality standards, ensuring long-term operational stability and safety in demanding industrial environments.
• Versatile Application: Suitable for a wide range of AC-1 applications, offering flexibility in system design.
• Compact Design (Size S00): Space-saving form factor for optimized control panel layouts.
• Easy Installation: Screw terminals provide a secure and straightforward connection method.
• Enhanced Safety: Complies with international standards (IEC 60947 series) for protection of connections against short circuits, overloads, and overvoltage.
• Integrated Auxiliary Contact: The basic unit includes one normally open (NO) auxiliary contact, expanding its functionality for control circuits.
• Compatibility: Designed to integrate seamlessly with other SIRIUS 3RV2 components, such as 3RU2 thermal overload relays or 3RB3 electronic overload relays for comprehensive motor protection (though this model is AC-1, compatibility is noted for broader system design).

Protection of Device Connection

All connections on the Siemens 3RT2316-1BM40 contactor must be protected against overload and short circuits.

• Main Connections: Refer to the technical product data sheet for specific protection information for a free-standing contactor. For device combinations (e.g., with overload relays or circuit breakers), consult the Digital Configuration Manual for load feeders.
• Auxiliary Connections: Information on auxiliary contact protection can be found in the technical product data sheet.
• Control Supply Voltage Connections: Protection typically involves selecting a suitable current-limiting power supply and appropriately dimensioning cables and protection devices (e.g., miniature circuit breakers). Consider inrush current peaks for solid-state operating mechanisms.

Protection Against Overvoltage:

The 3RT23 contactors can be retrofitted with surge suppressors (RC elements, varistors, diodes, or diode assemblies) to dampen opening surges in the coil. These accessories must be ordered separately. Note that damping may increase break times and delay times of contacts.

Electromagnetic Compatibility (EMC):

The contactor meets the requirements for environment category A. When used with frequency converters, refer to the Equipment Manual for specific configuration notes.

Contact Reliability of Auxiliary Contacts:

For switching low voltages (≤ 110 V) and currents (≤ 100 mA), the integrated auxiliary contact offers high contact reliability, making it suitable for solid-state circuits with currents ≥ 1 mA at voltages of 17 V and higher.

Operating Mechanism:

This 3RT23 series contactor features a conventional DC operating mechanism, controlled via the A1-A2 control supply voltage connection with varying operating ranges. Solenoid coil replacement is possible.

Fitting Auxiliary Contacts:

The 3RT231 contactor basic unit comes with one integrated auxiliary contact (1 NO). It can be expanded with additional auxiliary switches, adhering to permissible configurations. Refer to the “Auxiliary switches, instantaneous” overview for detailed information.

Accessories and Spare Parts:

A wide range of accessories and spare parts are available for the 3RT2316-1BM40 contactor, including surge suppressors and additional auxiliary switches. For detailed ordering information, refer to the “Accessories and spare parts for SIRIUS 3RT2 contactors” documentation.

Application

• Industrial control panels
• Building automation systems
• Power distribution
• HVAC systems
• Lighting control
• Resistive heating applications
• Grid disconnection for renewable energy systems

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