Siemens SIRIUS 3RT2336-1AF00 4-Pole AC-1 Contactor, 60A (400V/40°C), 110V AC Coil, Screw Terminal, Size S2 Original Brand New

Overview

The Siemens SIRIUS 3RT2336-1AF00 is a robust and reliable 4-pole AC-1 contactor, meticulously engineered for switching weak or non-inductive loads up to 60 Amperes at 400V (at 40°C). As a core component of the modular SIRIUS system, this contactor offers outstanding performance within a compact design, ensuring high contact reliability and prolonged endurance. Featuring a 110V AC, 50 Hz control coil, 1 normally open (NO) and 1 normally closed (NC) integrated auxiliary contacts, and secure screw terminals, the 3RT2336-1AF00 is designed for versatile applications, including disconnecting loads or power generation plants from the grid and transfer switching. Its S2 size makes it suitable for various industrial and commercial installations, meeting global standards like IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1.

Key Features & Benefit

• High Performance for Resistive Loads (AC-1): Specifically designed for efficient and reliable switching of non-inductive or weakly inductive loads (AC-1), rated for 60 Amperes at 400V and 40°C.
• Integrated Auxiliary Contacts: Comes equipped with 1 NO + 1 NC auxiliary contacts in the basic unit, simplifying wiring and reducing configuration complexity. These contacts offer high reliability for low voltages and currents, suitable for solid-state circuits.
• Modular SIRIUS System Compatibility: Seamlessly integrates with other SIRIUS components, allowing for the creation of optimized and factory-tested load feeder combinations, such as with 3RU2 thermal overload relays or 3RB3 electronic overload relays for motor protection.
• Flexible Connection Methods: Features robust screw terminals with box terminals, providing secure and direct connections for main and auxiliary circuits.
• Enhanced Safety & Protection:
  • Short-Circuit & Overload Protection: Designed for integration into systems with appropriate short-circuit and overload protection measures for main, auxiliary, and control supply voltage connections.
  • Overvoltage Protection: Can be retrofitted with surge suppressors (RC elements, varistors, diodes) for damping opening surges in the coil, ensuring prolonged device life.
• Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A, ensuring reliable operation in industrial environments.
• Durable & Reliable Operation: Built for a long mechanical service life (typically 10,000,000 operating cycles) and climate-resistant, approved for worldwide use (IEC and UL/CSA).
• Easy Maintenance: The solenoid coil is replaceable, and for 3RT233 contactors, contacts can also be replaced, facilitating easier servicing.
• Worldwide Approval: Complies with international standards, making it suitable for global applications.

Function & Application

The Siemens 3RT2336-1AF00 Contactor serves critical functions in electrical systems, primarily focused on switching resistive and weakly inductive loads.

• Four-pole switching of AC-1 loads: Ideal for applications where four poles are required to switch non-inductive or slightly inductive loads.
• Disconnecting loads or power generation plants from the grid: Provides a reliable method for isolating electrical systems.
• Transfer switching: Facilitates the smooth transfer of power between different sources.
• Industrial Automation: A fundamental component in control panels for various industrial processes.
• Building Technologies: Used in commercial and residential settings for switching lighting, heating, or other resistive loads.

Connection Methods Details

• Main Circuit: Screw terminals with box terminal. Direct connection possible with cable lugs when the box terminal is removed.
• Auxiliary and Control Circuit: Screw terminals.

Protection Considerations

• Main Connections: Requires external short-circuit and overload protection. Refer to the technical product data sheet and configuration manuals for detailed guidance on free-standing contactors and device combinations (contactor with overload relay or circuit breaker as motor feeder).
• Auxiliary Connections: Short-circuit and overload protection information is available in the technical product data sheet.
• Control Supply Voltage: Selection of suitable power supply with current-limiting function, considering short-time 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 quickly and reliably.”

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