Siemens 3RT2317-2AF00 Contactor AC-1, 22A, 4-Pole, 110V AC, Spring-Loaded, S00 Size Original Brand New

Siemens 3RT2317-2AF00 SIRIUS Industrial Contactor

Overview

The Siemens 3RT2317-2AF00 is a high-performance 4-pole contactor from the renowned SIRIUS industrial controls range. Specifically designed for AC-1 applications, it excels in switching weak or non-inductive loads up to 22 Amperes at 400V (at 40°C). This robust contactor features a 110V AC, 50/60 Hz control voltage and convenient spring-loaded terminals for quick and reliable wiring. Its compact S00 size makes it an ideal choice for space-constrained control panels and electrical enclosures.

Part of the versatile 3RT23 series, the 3RT2317-2AF00 adheres to strict international standards including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1, ensuring safety and reliability in diverse industrial environments.

Key Benefit

• Optimized for AC-1 Applications: Perfectly suited for switching resistive and non-inductive loads, ensuring efficient power control.
• Space-Saving Design: Compact S00 size allows for high-density installations in control cabinets.
• Quick and Secure Wiring: Spring-loaded terminals provide fast, tool-free connections, reducing installation time and increasing reliability.
• Reliable Performance: Built to Siemens’ high quality standards and compliant with leading international norms (IEC 60947 series).
• Enhanced Safety Features: Designed with considerations for short-circuit, overload, and overvoltage protection for main, auxiliary, and control circuits.
• Versatile Control: Operates with a standard 110V AC 50/60 Hz control supply voltage.
• Expandable Functionality: Supports the addition of auxiliary switches and surge suppressors for increased application flexibility.
• Long-Term Durability: Engineered for demanding industrial environments, ensuring a long operational lifespan.

Function

The Siemens 3RT2317-2AF00 contactor primarily functions as an electrically operated switch for:

• Four-pole switching of weak or non-inductive loads (AC-1): Ideal for heating elements, lighting, resistive furnaces, and other applications where the inrush current is not significantly higher than the steady-state current.
• Disconnecting loads or power generation plants from the grid: Provides a reliable means to isolate electrical equipment or power sources.
• Transfer switching: Can be integrated into systems requiring switching between different power sources or loads.
• Integration into motor protection schemes: Can be combined with 3RU2 thermal overload relays or 3RB3 electronic overload relays (for 3RT23 contactors) for comprehensive motor protection (when used in AC-3 applications with special versions).

Protection and Safety

The Siemens 3RT2317-2AF00 contactor is designed with comprehensive protection considerations:

• Short-Circuit and Overload Protection:
  • Main Connections: Requires external short-circuit and overload protection. Refer to the technical product data sheet or digital/configuration manuals for load feeders for detailed guidance, especially when combined with overload relays or circuit breakers.
  • Auxiliary Connections: Protection information available in the technical product data sheet.
  • Control Supply Voltage Connections: Protection must adhere to relevant standards for control panel configuration. Selection of current-limiting power supplies or suitable protection devices (e.g., miniature circuit breakers) is recommended, considering contactor load characteristics (inrush, holding power).
• Overvoltage Protection: Can be retrofitted with surge suppressors (RC elements, varistors, diodes, or diode assemblies) ordered separately as accessories to damp opening surges in the coil. Note that damping increases break and delay times.

Connection Methods

• Main Circuit: Features convenient spring-loaded terminals, enabling quick and secure plug-in connections.
• Auxiliary and Control Circuit: Equipped with reliable screw terminals for dependable connections.

Contact Reliability of Auxiliary Contacts

For switching low voltages (≤ 110 V) and currents (≤ 100 mA), the integrated auxiliary contact in 3RT23 contactors offers high contact reliability, making it suitable for solid-state circuits with currents ≥ 1 mA at voltages of 17 V and higher.

Motor Protection

For applications requiring motor protection, 3RU2 thermal overload relays or 3RB3 electronic overload relays can be directly mounted onto 3RT23 contactors.

Operating Mechanism

The 3RT2317-2AF00 features a conventional AC operating mechanism, controlled via the A1-A2 control supply voltage connection with varying operating ranges (refer to the technical product data sheet for precise details).

Maintenance and Expansion

• Solenoid Coil Replacement: The solenoid coil of the 3RT2317-2AF00 can be replaced, extending the lifespan of the contactor.
• Auxiliary Contact Expansion: The basic unit, which includes an integrated auxiliary contact, can be further expanded with additional auxiliary switches. Refer to the “Auxiliary switches, instantaneous → Overview” for detailed configuration guidelines.
• Accessories: A wide range of accessories and spare parts are available for 3RT23 contactors. Refer to the “Accessories and spare parts for SIRIUS 3RT2 contactors and SIRIUS 3RH2 contactor relays” for ordering information.

Application

The Siemens 3RT2317-2AF00 contactor is a versatile component for various industrial and commercial applications, including:

• Control of heating systems
• Lighting control
• Switching of resistive loads
• Power distribution panels
• Machine control systems
• Load isolation in renewable energy systems
• Automated transfer switch setups

For more information on the Siemens 3RT2317-2AF00 contactor and a wide range of other industrial automation products, please visit Turll.