Siemens 3UG4512-1AR20

Overview

The Siemens 3UG4512-1AR20 SIRIUS phase failure and sequence monitoring relay is an indispensable component for maintaining the integrity and operational efficiency of three-phase AC systems. Expertly engineered, this device provides critical protection for motors, pumps, HVAC systems, and a wide array of industrial machinery by meticulously monitoring for phase failures and incorrect phase sequences. With its ability to operate across a broad voltage range of 160 to 690 V AC (50-60 Hz), the 3UG4512-1AR20 offers unparalleled versatility and reliability in diverse industrial environments. Its compact design, coupled with straightforward screw terminal connections, ensures easy integration into existing control panels, minimizing installation time and complexity. This monitoring relay acts as a vigilant guardian, preventing costly downtime and equipment damage that can arise from phase-related anomalies, making it a cornerstone for robust industrial automation and control.

Key Features

• Advanced Phase Protection: Continuously monitors three-phase systems for both phase failure and improper phase sequence, safeguarding connected equipment from operational hazards and wear.
• Broad Voltage Compatibility: Designed for optimal performance across a wide operating voltage range from 160V to 690V AC, ensuring adaptability to various international and industrial power standards.
• Space-Saving Design: Its remarkably slim 22.5 mm width allows for high-density installation within control cabinets, maximizing valuable panel space without compromising functionality.
• Intuitive Analog Display: Features an accessible analog display for immediate and clear visualization of system status, facilitating quick diagnostics and troubleshooting by operators.
• Reliable Switching Performance: Equipped with a robust single changeover (SPDT) contact, rated at 3 A for 400 V AC, ensuring dependable and precise control over connected circuits and safety mechanisms.
• Effortless Integration: Utilizes standard screw terminal connections, providing a secure and simple wiring solution for seamless integration into new or existing electrical setups.
• Robust Environmental Tolerance: Operates reliably across a wide temperature range from -25°C to +60°C and boasts an IP20 protection rating, making it suitable for demanding industrial applications.

Technical Specifications

• Product Type: Phase Failure and Sequence Monitoring Relay
• Part Number: 3UG4512-1AR20
• Brand: Siemens
• Series: SIRIUS
• Voltage Range: 160–690 V AC
• Frequency: 50–60 Hz
• Output Contact: 1 Changeover (SPDT)
• Contact Rating: 3 A at 400 V AC
• Connection Type: Screw Terminals
• Width: 22.5 mm
• Mounting Type: DIN Rail
• Operating Temperature: -25°C to +60°C
• Protection Rating: IP20

Applications

• Industrial Automation: Provides essential protection for critical components such as motors, industrial drives, and complex machinery against damaging phase loss and incorrect wiring sequences.
• Pumping and Fluid Systems: Ensures the correct rotational direction and continuous operation of pumps, preventing mechanical damage and ensuring consistent fluid delivery in water treatment, irrigation, and process industries.
• HVAC and Refrigeration: Safeguards compressors, fans, and associated control systems in heating, ventilation, air conditioning, and refrigeration units, maintaining optimal climate control and preventing costly breakdowns.
• Material Handling Equipment: Essential for the safe and reliable operation of conveyors, hoists, cranes, and other logistics equipment where correct phase integrity is crucial to prevent operational malfunction and protect personnel.
• Electrical Distribution Panels: Integrates into industrial and commercial control panels to offer overarching protection for downstream equipment from voltage imbalances and phase irregularities within the main power supply.

Why Choose This Model?

• Uncompromised Equipment Protection: The Siemens 3UG4512-1AR20 offers robust, real-time monitoring that actively prevents damage to expensive machinery, extending its lifespan and reducing maintenance costs.
• Siemens Reliability: As a product from Siemens, a global leader in industrial technology, this monitoring relay is built to the highest standards of quality and engineering excellence, guaranteeing consistent performance.
• Flexible Application: Its wide voltage range and compact design make it a versatile solution suitable for a vast array of industrial applications and installation constraints, from small workshops to large-scale factories.
• Ease of Installation and Operation: Designed for simplicity, the screw terminals and intuitive analog display ensure that installation is quick and operation is straightforward, reducing setup time and potential for errors.
• Long-Term Value: Investing in the 3UG4512-1AR20 means investing in the uninterrupted operation of your facility, translating into significant long-term savings by avoiding costly repairs and production downtime.

Order Now

Enhance the reliability and safety of your three-phase electrical systems with the Siemens 3UG4512-1AR20 SIRIUS Phase Failure and Sequence Monitoring Relay. Don't leave your critical equipment vulnerable to power anomalies. Ensure seamless operation and protect your investments by integrating this advanced monitoring solution into your setup today. Purchase the Siemens 3UG4512-1AR20 and benefit from Siemens' renowned quality and performance. Add to cart now to secure your system's uptime and operational integrity!