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Siemens 3UG4512-1AR20

by Siemens

OverviewThe Siemens 3UG4512-1AR20 SIRIUS phase monitoring relay is a vital component for ensuring the continuous operation and integrity of industrial three-phase AC systems. This sophisticated device delivers crucial protection for machinery such as pumps, motors, and HVAC units by diligently monitoring for phase inconsistencies and incorrect phase rotation. With an operational voltage spectrum of 160 to 690 V AC (50-60 Hz), the 3UG4512-1AR20 provides unparalleled flexibility and dependability in diverse industrial settings. Its compact dimensions, combined with straightforward screw terminal connections, facilitate seamless integration into existing control panels, thereby minimizing installation complexity and time. This monitoring relay acts as a proactive guardian, preventing costly production halts and equipment damage that can result from phase anomalies, making it a critical asset for robust industrial control and automation.Key Features Advanced Phase Protection: Continually supervises three-phase systems for both phase loss and improper phase ordering, shielding connected equipment from operational risks and premature wear. Broad Voltage Compatibility: Engineered for optimal performance across a wide operating voltage range from 160V to 690V AC, ensuring adaptability to various global and industrial power standards. Space-Saving Design: Its notably slender 22.5 mm width enables high-density installation within control cabinets, maximizing valuable panel space without compromising functionality. Intuitive Analog Display: Features an easily understandable analog display for instant and clear visualization of system status, aiding rapid diagnostics and troubleshooting by operators. Reliable Switching Performance: Equipped with a dependable single changeover (SPDT) contact, rated at 3 A for 400 V AC, ensuring precise and reliable control over connected circuits and safety mechanisms. Effortless Integration: Utilizes conventional screw terminal connections, providing a secure and simple wiring solution for seamless integration into new or existing electrical configurations. Robust Environmental Tolerance: Operates reliably across a broad temperature range from -25°C to +60°C and boasts an IP20 protection rating, rendering 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: Delivers 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 guaranteeing consistent fluid delivery in water treatment, irrigation, and various 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 expensive breakdowns. Material Handling Equipment: Crucial for the safe and reliable operation of conveyors, hoists, cranes, and other logistics equipment where correct phase integrity is vital to prevent operational malfunctions and protect personnel. Electrical Distribution Panels: Integrates into industrial and commercial control panels to offer comprehensive protection for downstream equipment from voltage imbalances and phase irregularities within the main power supply. Why Choose This Model?The Siemens 3UG4512-1AR20 provides robust, real-time monitoring that actively prevents damage to valuable equipment by detecting phase anomalies before they cause issues. Its advanced features and wide compatibility make it a reliable choice for diverse industrial applications.Order NowEnhance the reliability and safety of your industrial systems. Purchase the Siemens 3UG4512-1AR20 phase monitoring relay today.FAQWhat does the Siemens 3UG4512-1AR20 monitor?It monitors three-phase AC systems for both phase failure and improper phase sequence.What is the voltage range for this relay?The device operates effectively across a wide voltage range from 160 to 690 V AC.How wide is the Siemens 3UG4512-1AR20?It features a slim design with a width of 22.5 mm.

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