Siemens SIRIUS 3RT2327-2AF00 Contactor 4-Pole, AC-1, 50A, 110V AC, Spring-Loaded Terminal, Size S0 Original Brand New

Overview

The Siemens SIRIUS 3RT2327-2AF00 is a high-performance 4-pole contactor designed for switching weak or non-inductive loads (AC-1 applications). With a robust 50A rating at 400V / 40°C, this contactor is engineered for reliability and durability in demanding industrial environments. It features a 110V AC, 50 Hz operating coil, integrated 1 NO (normally open) + 1 NC (normally closed) auxiliary contacts, and user-friendly spring-loaded terminals for quick and secure wiring. Its compact S0 size makes it ideal for space-constrained control panels. Manufactured to rigorous IEC standards, the 3RT2327-2AF00 ensures safe and efficient operation for a wide range of applications, including disconnecting loads, power generation plants, and transfer switching.

Key Benefit

• Reliable AC-1 Switching: Optimized for switching weak or non-inductive loads, ensuring stable and efficient operation.
• High Current Rating: Handles up to 50A, suitable for various power distribution and control applications.
• Integrated Auxiliary Contacts: Includes 1 NO + 1 NC contacts for flexible control and signaling circuits.
• Spring-Loaded Terminals: Provides fast, vibration-proof, and maintenance-free connections, reducing installation time and costs.
• Compact S0 Size: Space-saving design for efficient panel layout.
• Enhanced Safety: Complies with international standards IEC 60947, ensuring reliable and safe operation.
• Versatile Application: Ideal for disconnecting loads, power generation, and transfer switching.
• Expandable: Easily expandable with additional auxiliary switches and accessories (sold separately).

Function & Features:

• Contactor Type: AC-1 (suitable for non-inductive or slightly inductive loads, resistance furnaces, and general distribution systems).
• Poles: 4-pole configuration for versatile circuit control.
• Rated Current: 50 A at 400 V / 40 °C.
• Control Supply Voltage: 110 V AC, 50 Hz.
• Auxiliary Contacts: Built-in 1 NO + 1 NC for signaling and interlocking.
• Terminal Type: Spring-loaded terminals for main, auxiliary, and control circuits, offering quick and secure connections without special tools.
• Size: S0.
• Standards: Fully compliant with IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), ensuring global applicability and safety.
• Protection of Connections: Designed for robust short-circuit, overload, and overvoltage protection with suitable external measures.
• Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A.
• Contact Reliability: Auxiliary contacts are highly reliable, especially suitable for low voltages (≤ 110 V) and low currents (≤ 100 mA), making them ideal for solid-state circuits.
• Motor Protection Integration: Compatible with SIRIUS 3RU2 thermal overload relays or 3RB3 electronic overload relays for comprehensive motor protection when used in motor feeder applications.
• Operating Mechanism: Features a conventional AC operating mechanism.
• Surge Suppression: Can be retrofitted with external surge suppressors (RC elements, varistors, diodes) for coil damping (accessories sold separately).
• Replaceable Coil: The solenoid coil can be replaced for extended product lifespan.
• Auxiliary Switch Expansion: Basic units can be expanded with additional auxiliary switches for increased functionality.
• Extensive Accessories: A wide range of accessories and spare parts are available for customization and maintenance.

Application

The Siemens 3RT2327-2AF00 contactor is ideally suited for:

• Four-pole switching of weak or non-inductive loads.
• Disconnecting loads or power generation plants from the electrical grid.
• Transfer switching applications.
• General power distribution and control in industrial automation.

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