Siemens 3RT2316-1BF40 SIRIUS Contactor AC-1, 18A, 4-Pole, 110V DC, S00, Screw Terminal Original Brand New

Siemens 3RT2316-1BF40 SIRIUS Contactor – Reliable 4-Pole Switching for Industrial Application

The Siemens 3RT2316-1BF40 is a high-performance 4-pole contactor from the SIRIUS family, engineered for efficient and dependable switching of weak or non-inductive loads (AC-1). Designed for demanding industrial environments, this robust contactor features a rated operational current of 18 A at 400 V and 40 °C, a 110 V DC coil for precise control, and convenient screw terminals for secure wiring. Its compact S00 size ensures optimal space utilization in control panels.

Overview

The Siemens 3RT2316-1BF40 contactor is a crucial component in electrical control systems, offering reliable performance for applications such as disconnecting loads, managing power generation plants, and transfer switching. Built to rigorous international standards, including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), this contactor guarantees safety and operational integrity.

Key Features & Benefit

• AC-1 Rated Performance: Optimized for switching non-inductive or slightly inductive loads, making it ideal for heating applications, resistive loads, and general-purpose power distribution.
• High Current Capacity: Handles up to 18 A at 400 V, ensuring robust performance for medium-power applications.
• 4-Pole Design: Provides four main contacts for versatile switching configurations, perfect for multi-phase or isolation applications.
• 110 V DC Coil: Offers precise and reliable control, suitable for various DC control circuits.
• Screw Terminals: Ensures secure, durable, and easy electrical connections, minimizing installation time and maintenance.
• Compact Size S00: Optimizes panel space, contributing to more efficient and streamlined designs.
• Integrated Auxiliary Contact: The basic unit includes one integrated auxiliary contact (for 3RT231 contactors), with possibilities for expansion.
• High Contact Reliability: Auxiliary contacts are specially designed for low-voltage and low-current applications (≤ 110 V, ≤ 100 mA), ensuring dependable switching for solid-state circuits.
• Standards Compliant: Meets international standards for safety and performance, guaranteeing reliability and interoperability.
• Robust Protection: Designed with considerations for short-circuit, overload, and overvoltage protection for all connections (main, auxiliary, and control supply), ensuring system longevity.
• Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A, ensuring reliable operation in industrial settings.

Function

• Switching Non-Inductive Loads (AC-1): Efficiently controls resistive loads and circuits where the current and voltage are largely in phase.
• Load Disconnection: Provides a reliable means to disconnect electrical loads from the grid.
• Power Generation Plant Isolation: Used for isolating or connecting power generation sources to the grid.
• Transfer Switching: Facilitates the seamless transfer between different power sources.

Protection and Connectivity

The 3RT2316-1BF40 is designed with comprehensive protection considerations:

• Short-Circuit and Overload Protection (Main Connections): Refer to the technical product data sheet for free-standing contactor protection. For device combinations (contactor with overload relay or circuit breaker as motor feeder), consult the Digital and Configuration Manuals for load feeders.
• Short-Circuit and Overload Protection (Auxiliary Connections): Specific information is available in the technical product data sheet for auxiliary contact protection.
• Control Supply Voltage Protection: Adhere to relevant standards for control panel configuration. Options include current-limiting power supplies or suitable protection devices, considering inrush current peaks and holding power. Recommendations for miniature or circuit breakers are available in the “Control panel tip – Selecting and dimensioning suitable power supplies.”
• Overvoltage Protection (Control Supply): Can be retrofitted with RC elements, varistors, diodes, or diode assemblies (ordered separately as accessories) to damp opening surges in the coil.

Connection Methods:

• Main Circuit: Features convenient screw terminals for secure wiring.
• Auxiliary and Control Circuit: Equipped with reliable screw terminals.

Motor Protection Compatibility:

For overload protection of motors switched by 3RT23 contactors, 3RU2 thermal overload relays or 3RB3 electronic overload relays can be directly mounted, creating a complete motor feeder solution.

Operating Mechanism:

This 3RT23 contactor utilizes a conventional DC operating mechanism, controlled via the A1-A2 control supply voltage connection with varying operating ranges (see technical product data sheet for details). Solenoid coil replacement is possible.

Expandability and Accessories:

The 3RT2316-1BF40 basic unit is supplied with an integrated auxiliary contact and can be expanded further with additional auxiliary switches, ensuring flexibility for various control schemes. A wide range of accessories and spare parts are available for SIRIUS 3RT2 contactors and 3RH2 contactor relays.

For detailed information on technical specifications, accessories, and further product data, please refer to the Siemens product documentation and the Turll.