Siemens 3RT2336-1AP00 SIRIUS 4-Pole AC-1 Contactor, 60A, 230V AC Coil, S2 Size Original Brand New

Overview

The Siemens 3RT2336-1AP00 SIRIUS Contactor is a high-performance, 4-pole device engineered for reliable switching of weak or non-inductive loads (AC-1 duty), making it ideal for diverse industrial applications. Part of the renowned SIRIUS 3RT23 series, this robust contactor features a 60 A current rating at 400 V / 40 °C, a 230 V AC, 50 Hz control coil, and integrated 1 NO + 1 NC auxiliary contacts. Its compact S2 size and convenient screw terminals ensure easy installation and secure wiring in control panels and various electrical systems.

Designed to meet stringent international standards like IEC 60947, the 3RT2336-1AP00 offers exceptional mechanical service life and flexible expandability with additional auxiliary switches. Whether you need to disconnect power generation plants from the grid, manage transfer switching, or control general loads, this Siemens contactor provides dependable and efficient operation.

Benefit

• Reliable Performance: Built to Siemens’ high-quality standards, ensuring consistent and long-lasting operation in demanding industrial environments.
• Versatile Application: Optimized for AC-1 duty, suitable for switching weak or non-inductive loads, disconnecting power sources, and transfer switching.
• Enhanced Functionality: Integrated 1 NO + 1 NC auxiliary contacts provide immediate feedback and enable various control schemes.
• Easy Integration: Screw terminals offer straightforward and secure wiring, simplifying installation and maintenance.
• Robust Design: Withstands significant shock and vibration, contributing to a high mechanical service life.
• Safety Compliant: Adheres to key international standards (IEC 60947), ensuring safe and regulated operation.
• Expandable: Compatible with additional auxiliary switches and surge suppressors for tailored solutions and enhanced protection.
• Overload Protection Ready: Easily combined with Siemens 3RU2 thermal overload relays or 3RB3 electronic overload relays for comprehensive motor protection.

Function

The Siemens 3RT2336-1AP00 Contactor serves as an essential switching device in electrical circuits. Its primary functions include:

• Switching AC-1 Loads: Efficiently makes and breaks circuits for weak or non-inductive loads such as heating elements, lighting systems, and distribution circuits.
• Power Disconnection: Capable of disconnecting loads or power generation plants from the electrical grid, providing isolation for maintenance or safety.
• Transfer Switching: Facilitates the transfer of power between different sources, often used in backup power systems or load management.
• Control Circuit Integration: The built-in auxiliary contacts provide signal outputs (Normally Open and Normally Closed) that can be used to monitor the contactor’s state or trigger other control elements in an automation system.

Standards & Protection

• Standards: Complies with IEC 60947-1 (General rules), IEC 60947-4-1 (Contactors and motor-starters), and IEC 60947-5-1 (Control circuit devices and switching elements, specifically for auxiliary switches).
• Protection of Device Connections:
  • Main Connections: Requires suitable short-circuit and overload protection. Refer to the technical product data sheet and digital/configuration manuals for load feeders for detailed guidance on protecting free-standing contactors or combinations with overload relays/circuit breakers.
  • Auxiliary Connections: Protection information available in the technical product data sheet.
  • Control Supply Voltage Connections: Protection must align with relevant standards for control panel configuration, considering cable dimensioning and load characteristics (inrush current, switch-on/holding power). The use of current-limiting power supplies or miniature/circuit breakers is recommended.
• Overvoltage Protection: Can be retrofitted with external surge suppressors (RC elements, varistors, diodes) for coil damping, offering protection against opening surges. (Note: Damping increases break times and contact delay times).
• Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A. Specific configuration notes in the Equipment Manual should be observed when used with frequency converters.

Connection Methods

• Main Circuit: Employs robust screw terminals with a box terminal design. For 3RT234 contactors (larger versions in the same family), direct connection to the connecting bar with cable lugs is possible upon removal of the box terminal.
• Auxiliary and Control Circuit: Utilizes reliable screw terminals for secure and straightforward wiring of control signals and auxiliary functions.

Motor Protection & Operating Mechanism Types

• Motor Protection: For overload protection of motors, the 3RT23 contactors are designed to be mounted with compatible Siemens 3RU2 thermal overload relays or 3RB3 electronic overload relays.
• Operating Mechanisms: This 3RT23 series contactor features a conventional AC operating mechanism, specifically designed for 230 V AC, 50 Hz control. Other 3RT23 versions are available with DC or wide-range solid-state operating mechanisms for universal AC/DC operation.

Maintenance & Expandability

• Solenoid Coil Replacement: The solenoid coil of the 3RT2336-1AP00 can be replaced, extending the contactor’s service life.
• Auxiliary Contact Expansion: The basic unit includes integrated auxiliary contacts (1 NO + 1 NC for 3RT232 to 3RT234 contactors). All basic units can be expanded with additional auxiliary switches, allowing for flexible configuration to meet specific application requirements.
• Accessories & Spare Parts: A wide range of accessories and spare parts, including additional auxiliary switches, surge suppressors, and mechanical interlocks, are available for the SIRIUS 3RT2 contactor series.

Application

The Siemens 3RT2336-1AP00 Contactor is specifically engineered for applications requiring the four-pole switching of AC-1 duty loads. Common applications include:

• Heating and Lighting Circuits: Ideal for controlling non-inductive or weakly inductive loads in industrial and commercial heating, ventilation, and lighting systems.
• Power Distribution: Used for switching and isolating sections of power distribution networks.
• Capacitor Banks: Suitable for switching capacitor banks for power factor correction.
• Resistive Loads: Excellent for controlling purely resistive loads in various industrial processes.
• Power Generation Plant Disconnection: Can be used to safely disconnect power generation units from the main grid.
• General Industrial Switching: A reliable choice for general-purpose switching tasks where a 4-pole contactor with a 60A AC-1 rating is required.

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