Siemens 3RT1364-6AE36 SIRIUS Power Contactor 350A, 4-Pole, AC-1, Wide-Range Coil Original Brand New

Overview

The Siemens 3RT1364-6AE36 is a high-performance SIRIUS power contactor designed for reliable switching of non-inductive or weakly inductive loads (AC-1 applications). This robust 4-pole contactor is rated for 350 A at 400 V and 40 °C, making it ideal for a wide range of industrial power control applications. Equipped with a versatile wide-range solid-state operating mechanism, it accepts both AC (24-60 V) and DC (20-60 V) control supply voltages. The 3RT1364-6AE36 comes with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts for enhanced control flexibility and features both connection rail and screw terminals for main circuit connections, offering installation versatility. As part of the SIRIUS family, it ensures high contact reliability and adheres to international standards, providing a dependable solution for disconnecting loads, power generation plants, and transfer switching applications.

Key Features & Benefit

• High Power Switching: Rated for 350 A at 400 V (AC-1), suitable for heavy-duty non-inductive loads.
• Versatile 4-Pole Design: Ideal for multi-phase applications, providing robust switching capabilities.
• Wide-Range Coil: Features a solid-state operating mechanism accepting both 24-60 V AC and 20-60 V DC control voltages, simplifying inventory and reducing complexity.
• Integrated Auxiliary Contacts: Includes 2 NO + 2 NC auxiliary contacts for comprehensive control and signaling.
• Robust Connection Options: Offers both connection rail and screw terminals for secure and flexible wiring of the main circuit.
• Built-in Overvoltage Damping: Equipped with a varistor for coil damping, protecting against opening surges and ensuring longevity.
• High Contact Reliability: Auxiliary contacts designed for reliable switching even at low voltages (≤ 110 V) and currents (≤ 100 mA).
• Standards Compliant: Meets IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 standards, ensuring safety and performance.
• Motor Protection Compatibility: Can be combined with 3RB2 electronic overload relays for comprehensive motor protection.
• Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A, ensuring reliable operation in industrial settings.

Function

The Siemens 3RT1364-6AE36 contactor primarily functions as a remotely operated switch for high-current circuits. Its core functions include:

• Switching Non-Inductive Loads (AC-1): Efficiently makes and breaks circuits for resistive loads, heating elements, and distribution applications.
• Disconnecting Loads from Grid: Provides a reliable means to isolate electrical loads or power generation plants from the main power supply.
• Transfer Switching: Can be utilized in transfer switch applications to switch between different power sources.
• Auxiliary Signaling and Control: The integrated 2 NO + 2 NC auxiliary contacts enable feedback to control systems, interlocking, and activation of other devices.
• Coil Protection: The integrated varistor protects the coil from harmful voltage spikes during switching operations, extending the contactor’s lifespan.

Standards & Protection

The Siemens 3RT1364-6AE36 adheres to rigorous international standards, ensuring safe and reliable operation:

• IEC 60947-1: General rules for low-voltage switchgear and controlgear.
• IEC 60947-4-1: Contactors and motor-starters – Electromechanical contactors and motor-starters.
• IEC 60947-5-1: Control circuit devices and switching elements – Electromechanical control circuit devices.

Protection of Device Connections:

• Main Connections: Requires external short-circuit and overload protection. Refer to the technical product data sheet or relevant configuration manuals for device combinations (e.g., with overload relays or circuit breakers).
• Auxiliary Connections: Short-circuit and overload protection of auxiliary contacts should follow guidelines in the technical product data sheet.
• Control Supply Voltage Connections: Protection measures must comply with relevant standards for control panel configuration, considering load characteristics (inrush current, holding power) and potentially using current-limiting power supplies or miniature circuit breakers.
• Overvoltage Protection: The 3RT1364-6AE36 comes with an integrated varistor for coil damping, providing protection against opening surges. Note that damping may increase break and delay times.

Connection Methods

• Main Circuit: Features screw terminals with connecting bars, allowing connection via cable lugs or flexible/rigid busbars. This model can also be fitted with broadened bus connectors (accessories available separately).
• Auxiliary and Control Circuit: Utilizes reliable screw terminals for easy and secure wiring.

Electromagnetic Compatibility

The contactor meets the requirements for environment category A, indicating its suitability for industrial environments where a certain level of electromagnetic interference is present. For applications involving frequency converters, specific configuration notes in the Equipment Manual should be followed.

Contact Reliability of Auxiliary Contacts

The auxiliary contacts of the 3RT1364-6AE36 are engineered for high contact reliability, particularly suitable for switching low voltages (≤ 110 V) and low currents (≤ 100 mA). They are also ideal for solid-state circuits with currents $\ge$ 1 mA at a voltage of 17 V and higher.

Motor Protection

For comprehensive motor protection when using the 3RT1364-6AE36 in motor feeder applications, it can be seamlessly combined with 3RB2 electronic overload relays. These relays mount directly onto the contactor, providing reliable protection against overload conditions.

Operating Mechanism Types

The 3RT1364-6AE36 is equipped with a sophisticated wide-range solid-state operating mechanism. This design allows for flexible control using both 50/60 Hz AC and DC voltages. The operating range is 0.8 to 1.1 times the nominal supply voltage (Us​) for both AC and DC control.

Maintenance & Accessories

• Solenoid Coil/Operating Mechanism/Contacts: For the 3RT13 series, it is not possible to change the operating mechanism or the main contacts.
• Auxiliary Switches: The 3RT1364-6AE36 is supplied with two laterally mounted auxiliary switches (2 NO + 2 NC). Additional auxiliary switches can be mounted for further expansion, adhering to permissible configurations. Refer to the overview graphic for mountable accessories.
• Accessories and Spare Parts: A range of accessories is available to enhance functionality and simplify installation. Please refer to the Accessories Ordering Data or the overview graphic for compatible options.

Application

The 3RT1364-6AE36 contactor is highly versatile and suitable for a variety of demanding applications:

• Four-pole switching of weak or non-inductive loads (AC-1): Ideal for resistive heating, lighting circuits, and distribution boards.
• Disconnecting loads or power generation plants from the grid: Used as a reliable isolation device in power distribution systems.
• Transfer switching: Employed in automatic transfer switch (ATS) panels or manual transfer switches for switching between primary and secondary power sources.

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