Siemens SIRIUS 3RT2316-1BA40 Contactor – 4-Pole AC-1, 18A, 12V DC Coil, Screw Terminal Original Brand New

Siemens SIRIUS 3RT2316-1BA40 Contactor – Robust 4-Pole AC-1 Switching Solution

The Siemens 3RT2316-1BA40 is a high-performance SIRIUS 3RT23 series contactor designed for reliable switching of non-inductive or weakly inductive loads (AC-1 applications). This 4-pole contactor boasts an 18 A current rating at 400 V / 40 °C, making it an excellent choice for various industrial and commercial power distribution needs.

Equipped with a 12 V DC operating mechanism and robust screw terminals, the 3RT2316-1BA40 ensures secure and straightforward wiring. Its compact Size S00 form factor makes it suitable for integration into diverse control panels and system.

Key Features & Benefit:

• AC-1 Application Optimized: Specifically designed for switching non-inductive or weakly inductive loads, ensuring efficient and safe operation.
• High Current Rating: Rated at 18 A (at 400 V / 40 °C), providing ample capacity for demanding application.
• 4-Pole Design: Offers versatile switching capabilities for multi-phase systems or applications requiring multiple independent circuit.
• 12 V DC Coil: Compatible with common DC control voltages, simplifying integration into existing control circuit.
• Reliable Screw Terminals: Provides secure and durable electrical connections, minimizing maintenance and ensuring long-term performance.
• Compact Size S00: Optimizes panel space, allowing for more efficient system design.
• Integrated Auxiliary Contact: The basic unit includes one integrated auxiliary contact for enhanced control and feedback.
• Robust Construction: Built to Siemens’ high-quality standards, ensuring reliability and longevity in industrial environments.
• Standards Compliant: Adheres to IEC 60947‑1, IEC 60947‑4‑1, and IEC 60947‑5‑1 (auxiliary switches) for global applicability.

Application

The Siemens 3RT2316-1BA40 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 application
• General power switching in industrial and commercial setting

Protection & Safety:

Siemens contactors are designed with comprehensive protection in mind. For short-circuit and overload protection of main connections, refer to the technical product data sheet or the Digital/Configuration Manual for load feeders when combining with overload relays or circuit breakers. Auxiliary and control circuit connections should also be protected in accordance with relevant standards and regulations, potentially utilizing power supplies with current-limiting functions or suitable miniature/circuit breakers.

Overvoltage Protection: The 3RT23 contactors can be retrofitted with surge suppressors (RC elements, varistors, diodes, or diode assemblies) to damp opening surges in the coil. These accessories are ordered separately.

Motor Protection (for 3RT23 series): For overload protection, the 3RT23 contactors can be fitted with 3RU2 thermal overload relays or 3RB3 electronic overload relays.

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

Auxiliary Contact Reliability: For switching voltages $\le$ 110 V and currents $\le$ 100 mA, the auxiliary contacts of 3RT contactors are designed for high contact reliability, particularly suitable for solid-state circuits with currents $\ge$ 1 mA at 17 V and higher.

Expandability and Accessories: This 3RT231 contactor includes one integrated auxiliary contact. All basic units can be expanded with additional auxiliary switches. A wide range of accessories and spare parts are available for the SIRIUS 3RT2 contactors to enhance functionality and ensure long-term operation.

For more information on accessories and detailed technical data, please refer to the Siemens documentation or contact our sales team.

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