Siemens SIRIUS 3RT2327-2AL20 Contactor 4-Pole AC-1, 50A, 230V AC Coil, Spring-Loaded Terminal, Size S0 Original Brand New

Overview

The Siemens SIRIUS 3RT2327-2AL20 is a robust and reliable 4-pole AC-1 contactor, meticulously engineered for switching non-inductive or weakly inductive loads up to 50 Amperes at 400V (at 40°C). Featuring a 230V AC, 50/60 Hz control voltage and convenient spring-loaded terminals, this compact Size S0 contactor is ideal for a wide range of industrial applications, including load disconnection, power generation plant integration, and transfer switching. Built to rigorous IEC 60947 standards, it ensures high contact reliability with integrated 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts, making it a versatile component for your control circuits.

Features

• High Performance AC-1 Switching: Rated for 50 A at 400 V / 40 °C, perfect for resistive or weakly inductive loads.
• 4-Pole Design: Enables efficient four-pole switching for diverse applications.
• 230 V AC Coil (50/60 Hz): Standard control voltage for easy integration into existing systems.
• Spring-Loaded Terminals: Offers fast, reliable, and vibration-resistant wiring connections, reducing installation time and maintenance.
• Integrated Auxiliary Contacts: Comes with 1 NO + 1 NC auxiliary contacts for versatile control and signaling functions.
• Compact Size S0: Space-saving design for efficient panel layouts.
• Standards Compliance: Adheres to IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), ensuring global applicability and safety.
• High Contact Reliability: Auxiliary contacts designed for reliable switching even at low voltages ($le110$ V) and currents ($le100$ mA).
• Overvoltage Protection Ready: Can be retrofitted with surge suppressors (RC elements, varistors, diodes) for coil protection (accessories sold separately).
• Motor Protection Compatibility: Seamlessly integrates with SIRIUS 3RU2 thermal overload relays or 3RB3 electronic overload relays for comprehensive motor protection.

Function

• Power Switching: Efficiently controls the flow of power to non-inductive or weakly inductive loads.
• Load Disconnection: Provides a reliable means to disconnect loads from the main grid.
• Power Generation Plant Integration: Facilitates the connection and disconnection of power generation units.
• Transfer Switching: Enables switching between different power sources or circuits.
• Auxiliary Control: The integrated auxiliary contacts can be used for interlocking, signaling, or controlling other devices in your automation system.

Benefit

• Enhanced System Reliability: Built to Siemens’ high quality standards, ensuring long-term stable operation and reduced downtime.
• Easy and Fast Installation: Spring-loaded terminals simplify wiring, saving time and labor costs.
• Space Optimization: Compact S0 size allows for denser control panel designs.
• Versatile Application: Suitable for a broad spectrum of industrial applications due to its 4-pole AC-1 rating and robust design.
• Increased Safety: Conforms to international safety standards and offers various protection considerations for connections.
• Flexible Expansion: Compatible with additional auxiliary switches and motor protection relays for tailored solutions.
• Reduced Maintenance: Durable construction and reliable connections minimize the need for frequent servicing.

Application

• Heating systems
• Lighting control
• Capacitor banks
• Resistive loads in industrial machinery
• Power distribution panels
• Renewable energy systems (e.g., solar inverters, grid disconnection)
• Control panels and automation systems

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