Siemens 3RT2317-1AK60 SIRIUS Power Contactor AC-1, 22A, 4-Pole, 110V AC/120V AC Coil, S00, Screw Terminal Original Brand New

Overview

The Siemens 3RT2317-1AK60 is a high-performance SIRIUS 3RT23 series power contactor designed for reliable switching of AC-1 (non-inductive or weakly inductive) loads. With a robust 4-pole design and a rated operational current of 22 A at 400 V / 40 °C, this contactor is ideal for various industrial applications, including disconnecting loads, power generation plants from the grid, and transfer switching. Its compact S00 size, 110 V AC (50 Hz) / 120 V AC (60 Hz) control supply voltage, and convenient screw terminals ensure straightforward integration and dependable operation in control panel.

Function & Application

The Siemens 3RT2317-1AK60 contactor excels in applications requiring the switching of weak or non-inductive loads (AC-1). Its primary functions include:

• Four-pole switching: Enables control of multi-phase circuits or multiple single-phase circuits simultaneously.
• Disconnecting loads: Safely isolates electrical loads from the main power supply.
• Power generation plant disconnection: Facilitates the reliable disconnection of power generation units from the grid.
• Transfer switching: Used in systems requiring switching between different power sources.

Benefit

• High Reliability: Engineered to meet stringent industrial standards (IEC 60947-1, IEC 60947-4-1, IEC 60947-5-1), ensuring consistent and safe operation.
• Versatile Application: Suitable for a wide range of AC-1 applications in various industrial sectors.
• Easy Integration: Compact S00 size and screw terminals simplify installation and wiring within control cabinet.
• Robust Design: Built for durability and long service life in demanding environments.
• Expandable Functionality: Can be expanded with additional auxiliary switches (sold separately) to meet specific control requirements.
• Overload Protection Ready: Designed for seamless integration with 3RU2 thermal overload relays or 3RB3 electronic overload relays for comprehensive motor protection (for other contactor types like 3RT23 for motor-driven loads, specialized versions are available).

Technical Detail & Standard Compliance:

Standard: Complies with international standards for low-voltage switchgear and controlgear:

• IEC 60947‑1
• IEC 60947‑4‑1
• IEC 60947‑5‑1 (for auxiliary switches)

Protection of Device Connection: All connections must be protected against overload and short circuits. Refer to the technical product data sheet for specific information on protecting a free-standing contactor. For device combination (e.g., contactor with overload relay), consult the Digital Configuration Manual for Load Feeder.

• Auxiliary Connection: Short-circuit and overload protection of auxiliary contacts detailed in the technical product data sheet.
• Control Supply Voltage Protection: Consider relevant standard for control panel configuration, suitable power supplies with current-limiting function, and load characteristic (inrush current, holding power).

Protection against Overvoltage (Control Supply Voltage): The 3RT23 series 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 and delay time.

Connection Method:

• Main Circuit: Screw terminal (specifically for 3RT231 and 3RT232 contactor).
• Auxiliary and Control Circuit: Screw terminal.

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.

Contact Reliability of Auxiliary Contact: The integrated auxiliary contact of the 3RT23 contactors ensures high contact reliability, especially suitable for switching voltages $\le 110\text{V}$ and currents $\le 100\text{mA}$, including solid-state circuits with currents $\ge 1\text{mA}$ at voltages of $17\text{V}$ and higher.

Motor Protection: For protection against overload, 3RU2 thermal overload relays or 3RB3 electronic overload relays can be directly mounted onto the 3RT23 contactor.

Operating Mechanism: This version features a conventional AC operating mechanism, controlled via the A1 – A2 control supply voltage connection.

Solenoid Coil & Auxiliary Contact Replacement: The solenoid coil can be replaced. For 3RT231 contactor, the basic unit includes one integrated auxiliary contact (1 NO).

Fitting Auxiliary Contacts & Mounting Additional Auxiliary Switches: The basic unit comes with an integrated auxiliary contact (1 NO). All basic units can be expanded with additional auxiliary switches, provided the permissible configuration is observed. Refer to the Auxiliary Switche, Instantaneous section for detailed information on fitting auxiliary switches for 3RT23 contactor.

Accessories and Spare Part: A wide range of accessories and spare parts are available for 3RT231 to 3RT234 contactor. Please refer to the “Accessories and Spare Parts for SIRIUS 3RT2 Contactors and SIRIUS 3RH2 Contactor Relays” for further details.

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